Hey Birt!
Convergent Workslate Part 1, Introduction microcassette drive repair
updated
In this video we take a look at the king of 1st generation Sharp pocket computers the PC-1600K along with its CE-1600P printer/sock and CE-1600F 2.5” floppy drive. Join in as we refurbish the whole system and see what surprise one of the components has in store for us.
Timeline:
00:00:00 – Welcome
00:01:47 – Evaluation of whole system
00:04:55 – PC-1600K computer teardown
00:17:31 – CE-1600P printer teardown
00:31:45 – CE-1600F floppy drive teardown
00:50:29 – The printer strikes back
01:01:42 – Wrap up. Thanks!
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NiMh tabbed AA: amzn.to/3OMjBkW
uxCell strain reliefs: amzn.to/3nJ5AaP
3M Double sided tape: amzn.to/3p9odcG
Noctua 80mm NF-A8 FLX fan: amzn.to/3ASVhsJ
Credits
Chiptune Thing No. 3 "Victory" by Steven O’Brien soundcloud.com/stevenobrien
Creative Commons — Attribution 3.0 Unported— CC BY 3.0
http://creativecommons.org/licenses/b...
Music provided by Music for Creators youtu.be/ujIMRIJ1JG8
In this video we take a look inside a rather large box of Tandy Model 100 goodies that was recently donated to the channel by Walt. Inside we find loads of literature and ample accessories. Join us and find out about all the acquisitions.
Timeline:
00:00 – Welcome
01:29 – Books, catalogs and magazines
07:05 – Modem, modem coupler, disks
08:29 – TTXpress portable thermal printer
09:41 – Purple Computing portable 3.4” disk drive
12:49 – Wrap up. Thanks!
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Links
Tandy Assembly 2024: http://www.tandyassembly.com
PG Design RAM video: youtu.be/mBUoIRcxhOg
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Fiberglass pen: amzn.to/3pWRzIk
Fiberglass pen refills: amzn.to/3RgqGdQ
OWDEN Hollow punch set: amzn.to/3PXzTXW
Battery Spot Welder: amzn.to/3QMaG3T
Hotplate: amzn.to/3rxOtLU
Spudger set I use: amzn.to/3z19pM7
Heat mats: amzn.to/3MXgSVG
Amazon Associated Links Chemicals:
303 Aerospace Protectant: amzn.to/3BxRa5Y
CiaKot: amzn.to/3CvVKiY
Overcaot Pen: amzn.to/3s439Bt
Novus Plastic Polish: amzn.to/2VwtFaV
Electronics / PCB cleaner: amzn.to/3ORx62D
Citric Acid: amzn.to/3krkgdt
Amazon Associated Links Parts / Supplies:
Foam sheet, 1mm: amzn.to/37CfTtt
Uxcell shrink wrap: amzn.to/3boKJEd
NiMh tabbed Sun-C: amzn.to/3nHCbxL
NiMh tabbed AA: amzn.to/3OMjBkW
uxCell strain reliefs: amzn.to/3nJ5AaP
3M Double sided tape: amzn.to/3p9odcG
Noctua 80mm NF-A8 FLX fan: amzn.to/3ASVhsJ
Credits
Chiptune Thing No. 3 "Victory" by Steven O’Brien soundcloud.com/stevenobrien
Creative Commons — Attribution 3.0 Unported— CC BY 3.0
http://creativecommons.org/licenses/b...
Music provided by Music for Creators youtu.be/ujIMRIJ1JG8
In this video we refurbish two odd TRS-80 Model 100s. One of them is a one-of-a-kind prototype from the estate of Tandy engineer Frank Druda (thanks to my friend Eric D.). Second M100 has an odd ‘blonde’ keyboard. Let dig into both and see how much the prototype differs from a production unit and get them both fully operational again.
Both units will be at Tandy Assembly 2024: http://www.tandyassembly.com
Timeline:
00:00 – Welcome
01:37 – Teardown of ‘Blondie’
05:55 – Tear down of the prototype
12:31 – Quick test on both units
20:16 – How to clean the DC input jack
21:43 – Prototype partial recap and testing
26:01 – Wrap up. Thanks!
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Zadig: http://zadig.akeo.ie/
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Fiberglass pen: amzn.to/3pWRzIk
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Hotplate: amzn.to/3rxOtLU
Spudger set I use: amzn.to/3z19pM7
Heat mats: amzn.to/3MXgSVG
Amazon Associated Links Chemicals:
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CiaKot: amzn.to/3CvVKiY
Overcaot Pen: amzn.to/3s439Bt
Novus Plastic Polish: amzn.to/2VwtFaV
Electronics / PCB cleaner: amzn.to/3ORx62D
Citric Acid: amzn.to/3krkgdt
Amazon Associated Links Parts / Supplies:
Foam sheet, 1mm: amzn.to/37CfTtt
Uxcell shrink wrap: amzn.to/3boKJEd
NiMh tabbed Sun-C: amzn.to/3nHCbxL
NiMh tabbed AA: amzn.to/3OMjBkW
uxCell strain reliefs: amzn.to/3nJ5AaP
3M Double sided tape: amzn.to/3p9odcG
Noctua 80mm NF-A8 FLX fan: amzn.to/3ASVhsJ
Credits
Chiptune Thing No. 3 "Victory" by Steven O’Brien soundcloud.com/stevenobrien
Creative Commons — Attribution 3.0 Unported— CC BY 3.0
http://creativecommons.org/licenses/b...
Music provided by Music for Creators youtu.be/ujIMRIJ1JG8
It’s time for another test instrument repair video. This episode we have three vintage Fluke DMMs on the bench. A nice 8810A 5 ½ digit meter with piano keys and two 8000As which are a more cost effective 3 ½ digit bit of kit. Can we get all three working. Will we have to fight with the ganged mechanical switches? Join us and find out.
Timeline:
00:00 – Welcome
01:13 – Fluke 8810A teardown, evaluation
09:52 – Fluke 8810A first power on and test
15:09 – Cleaning the ganged switches and retest
23:02 – Fluke 8000A 2x overview
24:55 – Fluke 8000A #1 teardown, test
34:06 – Fluke 8000A #2 teardown, test
37:50 – Fluke 8000A front panel removal, switch deep clean
43:32 – Wrap up. For want of unobtanium…
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Hotplate: amzn.to/3rxOtLU
Spudger set I use: amzn.to/3z19pM7
Heat mats: amzn.to/3MXgSVG
Amazon Associated Links Chemicals:
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CiaKot: amzn.to/3CvVKiY
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Citric Acid: amzn.to/3krkgdt
Amazon Associated Links Parts / Supplies:
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uxCell strain reliefs: amzn.to/3nJ5AaP
3M Double sided tape: amzn.to/3p9odcG
Noctua 80mm NF-A8 FLX fan: amzn.to/3ASVhsJ
Credits
Chiptune Thing No. 3 "Victory" by Steven O’Brien soundcloud.com/stevenobrien
Creative Commons — Attribution 3.0 Unported— CC BY 3.0
http://creativecommons.org/licenses/b...
Music provided by Music for Creators youtu.be/ujIMRIJ1JG8
It’s time for Ferengi Friday! This time we are opening a box of vintage goodies from Japan. Inside we have some pocket computers and computers that are not so pocketable. There are also some vintage Japanese pokecom ads and an interesting docking station. Join us for the fun.
Timeline:
00:00 – Welcome
01:07 – Sharp PC-1210, PC-1211, PC-1480U
04:53 – Casio FX-801P
12:17 – Casio FX-820P, FA-20
16:09 – Vintage ads, Casio FA-10, PB-700
21:27 – Wrap up, thanks!
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Battery Spot Welder: amzn.to/3QMaG3T
Hotplate: amzn.to/3rxOtLU
Spudger set I use: amzn.to/3z19pM7
Heat mats: amzn.to/3MXgSVG
Amazon Associated Links Chemicals:
303 Aerospace Protectant: amzn.to/3BxRa5Y
CiaKot: amzn.to/3CvVKiY
Overcaot Pen: amzn.to/3s439Bt
Novus Plastic Polish: amzn.to/2VwtFaV
Electronics / PCB cleaner: amzn.to/3ORx62D
Citric Acid: amzn.to/3krkgdt
Amazon Associated Links Parts / Supplies:
Foam sheet, 1mm: amzn.to/37CfTtt
Uxcell shrink wrap: amzn.to/3boKJEd
NiMh tabbed Sun-C: amzn.to/3nHCbxL
NiMh tabbed AA: amzn.to/3OMjBkW
uxCell strain reliefs: amzn.to/3nJ5AaP
3M Double sided tape: amzn.to/3p9odcG
Noctua 80mm NF-A8 FLX fan: amzn.to/3ASVhsJ
Credits
Chiptune Thing No. 3 "Victory" by Steven O’Brien soundcloud.com/stevenobrien
Creative Commons — Attribution 3.0 Unported— CC BY 3.0
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Music provided by Music for Creators youtu.be/ujIMRIJ1JG8
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Links
uBPD product poage: soigeneris.com/universal-backpack-drive
Backpack docs/firmware: github.com/Jeff-Birt/Backpack
Backpack usage video: youtu.be/6ltehimrF28
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Hotplate: amzn.to/3rxOtLU
Spudger set I use: amzn.to/3z19pM7
Heat mats: amzn.to/3MXgSVG
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CiaKot: amzn.to/3CvVKiY
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Citric Acid: amzn.to/3krkgdt
Amazon Associated Links Parts / Supplies:
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uxCell strain reliefs: amzn.to/3nJ5AaP
3M Double sided tape: amzn.to/3p9odcG
Noctua 80mm NF-A8 FLX fan: amzn.to/3ASVhsJ
Credits
Chiptune Thing No. 3 "Victory" by Steven O’Brien soundcloud.com/stevenobrien
Creative Commons — Attribution 3.0 Unported— CC BY 3.0
http://creativecommons.org/licenses/b...
Music provided by Music for Creators youtu.be/ujIMRIJ1JG8
This video is a sort of quick start for those just getting a TRS-80 Model 100, 102 or Olivetti M10. I have done repairs videos on these machines but not a ‘getting started’ type of video. In this video we’ll try to cover the questions you might have when you get your first M100, T102, or Olivetti M10 which is a sexy Italian cousin of the M100. In a future video we’ll cover the M200 in a similar manner. We’ll cover things in general and I’ll include links to other videos where I do specific repairs. Buckle up. Let’s get started.
Timeline:
00:00 – Welcome
02:11 – Visual inspection
04:55 – First power up
09:17 – Teardown and preventative maintenance
17:42 – Testing, keyboard, Serial port and burn in
24:03 – Modern mass storage options
30:21 – Wrap up. Thanks!
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Links (videos)
Selecting power adapters: youtu.be/f2ShjK9uq9Y
Serial port update: youtu.be/KPFnwv_nDD8
M100 recap: youtu.be/IGTdNMx1V1w
Olivetti M10 refurb: youtu.be/tq8DnnvOAy8
Backpack drive: youtu.be/UcImWGS70Qo
All TRS-80: youtube.com/watch?v=hbLWk7ir9sI&list=PLegscpHOheJv4ZtLvSBxaVXKQ0FpYDtyV
Links (general)
RS232 pinouts: archive.org/details/rs-232-signals
Test programs: soigeneris.com/Document/VintCom/M100_Test_Programs.txt
Backpack product page: soigeneris.com/tandy-tpdd-2-backpack-drive-2
DAR product page: soigeneris.com/dial-a-rom-for-vintage-computers
REX product page: bitchin100.com/wiki/index.php?title=Ordering_Information
Tandy Wiki: http://tandy.wiki/Main_Page
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Battery Spot Welder: amzn.to/3QMaG3T
Hotplate: amzn.to/3rxOtLU
Spudger set I use: amzn.to/3z19pM7
Heat mats: amzn.to/3MXgSVG
Amazon Associated Links Chemicals:
303 Aerospace Protectant: amzn.to/3BxRa5Y
CiaKot: amzn.to/3CvVKiY
Overcaot Pen: amzn.to/3s439Bt
Novus Plastic Polish: amzn.to/2VwtFaV
Electronics / PCB cleaner: amzn.to/3ORx62D
Citric Acid: amzn.to/3krkgdt
Amazon Associated Links Parts / Supplies:
Foam sheet, 1mm: amzn.to/37CfTtt
Uxcell shrink wrap: amzn.to/3boKJEd
NiMh tabbed Sun-C: amzn.to/3nHCbxL
NiMh tabbed AA: amzn.to/3OMjBkW
uxCell strain reliefs: amzn.to/3nJ5AaP
3M Double sided tape: amzn.to/3p9odcG
Noctua 80mm NF-A8 FLX fan: amzn.to/3ASVhsJ
Credits
Chiptune Thing No. 3 "Victory" by Steven O’Brien soundcloud.com/stevenobrien
Creative Commons — Attribution 3.0 Unported— CC BY 3.0
http://creativecommons.org/licenses/b...
Music provided by Music for Creators youtu.be/ujIMRIJ1JG8
In this video we take a stack of 5 Sharp PC-1211 (TRS-80 PC-1) pokecoms and try to turn them into 4 working ones. In Part #1 we evaluated all 5 units and managed to fix two of them. In Part #2 we will attempt to get two more units working. It was quite the struggle, will we manage it? Join us and find out.
Timeline:
00:00 – Welcome
01:59 – Testing RAM/Logic chips
08:21 – CPU 1, CPU 2 swap
14:21 – LCD Driver #1 swap
15:28 – More chip swapping nonsense
23:41 – Back to unit #1
26:32 – Wrap up, thanks
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Links
PC-1211 (PC-1) LCD Replacement video: youtu.be/KHzOBoSHLtg
PC-1 ‘Pig pen’: youtu.be/QfmBg-bRvTo
Amazon Associated Links Tools:
Fiberglass pen: amzn.to/3pWRzIk
Fiberglass pen refills: amzn.to/3RgqGdQ
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Battery Spot Welder: amzn.to/3QMaG3T
Hotplate: amzn.to/3rxOtLU
Spudger set I use: amzn.to/3z19pM7
Heat mats: amzn.to/3MXgSVG
Amazon Associated Links Chemicals:
303 Aerospace Protectant: amzn.to/3BxRa5Y
CiaKot: amzn.to/3CvVKiY
Overcaot Pen: amzn.to/3s439Bt
Novus Plastic Polish: amzn.to/2VwtFaV
Electronics / PCB cleaner: amzn.to/3ORx62D
Citric Acid: amzn.to/3krkgdt
Amazon Associated Links Parts / Supplies:
Foam sheet, 1mm: amzn.to/37CfTtt
Uxcell shrink wrap: amzn.to/3boKJEd
NiMh tabbed Sun-C: amzn.to/3nHCbxL
NiMh tabbed AA: amzn.to/3OMjBkW
uxCell strain reliefs: amzn.to/3nJ5AaP
3M Double sided tape: amzn.to/3p9odcG
Noctua 80mm NF-A8 FLX fan: amzn.to/3ASVhsJ
Credits
Chiptune Thing No. 3 "Victory" by Steven O’Brien soundcloud.com/stevenobrien
Creative Commons — Attribution 3.0 Unported— CC BY 3.0
http://creativecommons.org/licenses/b...
Music provided by Music for Creators youtu.be/ujIMRIJ1JG8
In this video we take a stack of 5 Sharp PC-1211 (TRS-80 PC-1) pokecoms and try to turn them into 4 working ones. We’ll first evaluate all 5 units to see what’s wrong and develop a game plan. Then we’ll dig into each unit in more detail to get as many fixed up as possible. Will we get 4 units out of 5 working? Join us and find out.
Timeline:
00:00 – Welcome
01:21 – Evaluate Units #1 - #4
12:07 – Evaluate Unit #5, detailed checks
22:09 – Detailed checks of Units #4
30:17 – Fix Unit #1 with guts of Unit #5
37:09 – Fix Unit #4, chip swap, LCD swap
47:40 – Wrap up, #2 near future
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Links
PC-1211 (PC-1) LCD Replacement video: youtu.be/KHzOBoSHLtg
PC-1 ‘Pig pen’: youtu.be/QfmBg-bRvTo
Amazon Associated Links Tools:
Fiberglass pen: amzn.to/3pWRzIk
Fiberglass pen refills: amzn.to/3RgqGdQ
OWDEN Hollow punch set: amzn.to/3PXzTXW
Battery Spot Welder: amzn.to/3QMaG3T
Hotplate: amzn.to/3rxOtLU
Spudger set I use: amzn.to/3z19pM7
Heat mats: amzn.to/3MXgSVG
Amazon Associated Links Chemicals:
303 Aerospace Protectant: amzn.to/3BxRa5Y
CiaKot: amzn.to/3CvVKiY
Overcaot Pen: amzn.to/3s439Bt
Novus Plastic Polish: amzn.to/2VwtFaV
Electronics / PCB cleaner: amzn.to/3ORx62D
Citric Acid: amzn.to/3krkgdt
Amazon Associated Links Parts / Supplies:
Foam sheet, 1mm: amzn.to/37CfTtt
Uxcell shrink wrap: amzn.to/3boKJEd
NiMh tabbed Sun-C: amzn.to/3nHCbxL
NiMh tabbed AA: amzn.to/3OMjBkW
uxCell strain reliefs: amzn.to/3nJ5AaP
3M Double sided tape: amzn.to/3p9odcG
Noctua 80mm NF-A8 FLX fan: amzn.to/3ASVhsJ
Credits
Chiptune Thing No. 3 "Victory" by Steven O’Brien soundcloud.com/stevenobrien
Creative Commons — Attribution 3.0 Unported— CC BY 3.0
http://creativecommons.org/licenses/b...
Music provided by Music for Creators youtu.be/ujIMRIJ1JG8
In this video we get back to the Epson PX-8 which failed to come back to life a few months ago. We recap episode #1 and cover new developments. Will we get it to boot? Will we find yet more problems? Join us and find out!
Timeline
00:00 – Welcome
01:21 – Recap of episode 1 & new progress
06:58 – Diagnostic ROM testing
12:48 – RAM R&R, retest
17:40 – Will it now boot?
19:02 – Cassette deck woes
30:22 – Reassemble and test
37:47 – More deck fun, wrap up
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Links
PX-8 #1 video: youtu.be/byuNTI5aCnI
Workslate video: youtu.be/Wr-f9BsC730
PX-4/PX-4 Diagnostic ROM: github.com/NaturalTangent/px8_ramtest
PX-4 files: vintagecomputer.net/fjkraan/comp/px8/roms
RS232 PDF: archive.org/details/rs-232-signals
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NiMh tabbed AA: amzn.to/3OMjBkW
uxCell strain reliefs: amzn.to/3nJ5AaP
3M Double sided tape: amzn.to/3p9odcG
Noctua 80mm NF-A8 FLX fan: amzn.to/3ASVhsJ
Credits
Chiptune Thing No. 3 "Victory" by Steven O’Brien soundcloud.com/stevenobrien
Creative Commons — Attribution 3.0 Unported— CC BY 3.0
http://creativecommons.org/licenses/b...
Music provided by Music for Creators youtu.be/ujIMRIJ1JG8
In this Ferengi Friday video we take a belated look at some Japanese goodies that arrived just before Christmas last year and some related kit that just arrived this week. Lots of interesting Casio gear with a few Sharp units thrown in for good measure. Also, some nifty Japanese pocket computer advertisements.
Timeline:
00:00 – Welcome
01:01 – Casio FX-502P
04:25 – Pokecom ads
06:31 – Casio FX-860P
09:03 – Sharp PC-E500 #1
11:14 – Sharp PC-1211 junker
14:36 – Sharp PC-E500 #2
18:11 – Sharp PC-1210/11 ads
21:10 – More Casio goodies
24:00 – Thanks!
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Scans: Coming soon!
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uxCell strain reliefs: amzn.to/3nJ5AaP
3M Double sided tape: amzn.to/3p9odcG
Noctua 80mm NF-A8 FLX fan: amzn.to/3ASVhsJ
Credits
Chiptune Thing No. 3 "Victory" by Steven O’Brien soundcloud.com/stevenobrien
Creative Commons — Attribution 3.0 Unported— CC BY 3.0
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Music provided by Music for Creators youtu.be/ujIMRIJ1JG8
In this video we take a look at some vintage technical manuals I obtained from a professor clearing out his office. Old manuals such as these are such a joy. They are full of great information that in many cases is hard or impossible to find elsewhere. The writing is also typically better than what we get today, more succinct and written by someone who is highly skilled at conveying technical information in written form.
Timeline:
00:00 – Welcome
01:00 – Logitech IO digitizing notebooks
02:39 – HP DC Power Supply Handbook
03:51 – Motorola Zener Diode Handbook
04:41 – Sams Transistor Substitution Handbook
05:50 – Understanding Transformers and Coils
06:42 – Sylvania GTE Transistor Clinic
07:34 – Electrical Systems for Computer Installations
08:38 – IEEE TV Technology Today
09:35 – Introduction to Historical Geology
11:15 – K&R C Programming / ATT C Reference
13:06 – Chemistry in Agriculture
15:27 – Wrap up. Thanks!
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Credits
Chiptune Thing No. 3 "Victory" by Steven O’Brien soundcloud.com/stevenobrien
Creative Commons — Attribution 3.0 Unported— CC BY 3.0
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Music provided by Music for Creators youtu.be/ujIMRIJ1JG8
In this video we take a look at one of the original ‘big three’ computers. A TRS-80 Model I. It has a screw screen output consisting of garbage repeated 4 times. Let’s take a look at this classic piece of computing history and get it working like new once again.
Timeline:
00:00 – Welcome
00:52 – Symptoms and PCR
05:00 – Video Divider Chain
11:24 – Garbage screen cleaning
16:04 – Will Diag. ROM help?
24:38 – Keyboard testing
26:55 – Wrap up. Thanks!
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Links
Ira Goldklang’s site: trs-80.com/wordpress/welcome
Diagnostic ROM: github.com/misterblack1/trs80-diagnosticrom
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Noctua 80mm NF-A8 FLX fan: amzn.to/3ASVhsJ
Credits
Chiptune Thing No. 3 "Victory" by Steven O’Brien soundcloud.com/stevenobrien
Creative Commons — Attribution 3.0 Unported— CC BY 3.0
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Music provided by Music for Creators youtu.be/ujIMRIJ1JG8
Timeline:
00:00 – Welcome
00:29 – Overview of the new memory modules
04:46 – The CE-163F RAM/FLASH module
09:36 – The CE-1638 RAM module
15:32 – Wrap up. Questions?
Join us and find out how nifty these two modules are.
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Links
CE-153F and CE-1638 product page: soigeneris.com/sharp-pc-1500-memory-modules
Bank switch demo program:
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Noctua 80mm NF-A8 FLX fan: amzn.to/3ASVhsJ
Credits
Chiptune Thing No. 3 "Victory" by Steven O’Brien soundcloud.com/stevenobrien
Creative Commons — Attribution 3.0 Unported— CC BY 3.0
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Music provided by Music for Creators youtu.be/ujIMRIJ1JG8
Join us and find out more about the CE-158X.
Timeline:
00:00 – Introduction
00:35 – Overview, battery installation, How to Connect
05:56 – How to use, loading files, using parallel port
16:57 – Using USB serial port, How to disconnect
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Links
CE-158X Product Page: soigeneris.com/ce-158x-serial-parallel-interface-for-sharp-pc-1500
Backpack Drive Plus page: soigeneris.com/tandy-tpdd-2-backpack-drive-2
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Credits
Chiptune Thing No. 3 "Victory" by Steven O’Brien soundcloud.com/stevenobrien
Creative Commons — Attribution 3.0 Unported— CC BY 3.0
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Music provided by Music for Creators youtu.be/ujIMRIJ1JG8
In this video we take a look at a very troubled Epson PX-8. This little beauty was quite the laptop back in the 1980s featuring the CPM operating system, a multiline tilt-up LCD, built in microcassette drive and a whopping three processors. We do our best to bring it back to fighting shape in this episode. There are signs of life, but we fall short of getting it booting up. Join us for the trial and tribulations of working on vintage computers.
Timeline:
00:00 – Welcome
02:44 – Disassembly and evaluation
17:14 – Microcassette refurbishment
27:44 – LCD refurbishment
39:39 – Batteries and final assembly
57:57 – Testing 1-2-3
59:06 – Wrap up, next steps
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Links:
PX-8 Capacitor Map: archive.org/details/epson-px-8-capacitor-map
Memory battery pack: batteryspace.com/nimhbatterypack48v280mah4x13aawithtabs.aspx
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Noctua 80mm NF-A8 FLX fan: amzn.to/3ASVhsJ
Credits
Chiptune Thing No. 3 "Victory" by Steven O’Brien soundcloud.com/stevenobrien
Creative Commons — Attribution 3.0 Unported— CC BY 3.0
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Music provided by Music for Creators youtu.be/ujIMRIJ1JG8
In this video we are going to try and demystify ‘recapping’. When should you replace capacitors, when should you leave well enough alone? We will also cover how to make a capacitor map and how to select the correct replacement parts.
Timeline:
00:00 – Welcome
01:23 – Avoiding fads, when to recap, when not to
06:44 – Case study, VIC-20
12:58 – Cataloging caps, cap rating and specs
29:56 – Evaluating leaks
36:49 – Capacitor map, selecting replacement parts
50:46 – Wrap up
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Links
Early M100 repair video: youtu.be/IGTdNMx1V1w
M100 recap rescue: youtu.be/WTDWAPgFgTU
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Credits
Capacitor image: By Suyash Dwivedi - Own work, CC BY-SA 4.0, commons.wikimedia.org/w/index.php?curid=51532442
PCB Image: By User:Romanski - Own work, CC BY-SA 3.0, commons.wikimedia.org/w/index.php?curid=1254100
Chiptune Thing No. 3 "Victory" by Steven O’Brien soundcloud.com/stevenobrien
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Music provided by Music for Creators youtu.be/ujIMRIJ1JG8
In this video I show a quick fix to the occasional filament stripping problem I had with some filaments on my Raise3D E2 printer. I suspect that other printers could also benefit from this simple modification.
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Links
Raise3D: raise3d.com
Matter Hackers: matterhackers.com/store/c/fdm-3d-printers/raise3d-3d-printers
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Credits
Chiptune Thing No. 3 "Victory" by Steven O’Brien soundcloud.com/stevenobrien
Creative Commons — Attribution 3.0 Unported— CC BY 3.0
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Music provided by Music for Creators youtu.be/ujIMRIJ1JG8
In this video we take a look why ‘simple RS-232 communications are not always so simple. We’ll learn a bit about what RS-232 is, figure out how to properly wire two devices together and about tools that can help in this regard. We also learn how to configure the communication parameters and how to figure out why things aren’t working with your hardware and/or software.
Timeline:
00:00 – Welcome
01:14 – Introduction to RS-232
05:28 – Wiring, connectors and tools.
16:05 – Example #1, DB9 to DB25 adapter
19:36 – Example #2, CGP-115 cable
35:05 – Example #3, EOL handshaking, wrap up, thanks!
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Level Convertor PCB: amzn.to/3vnM6jr
RS232 connection PDF: archive.org/details/rs-232-signals
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3M Double sided tape: amzn.to/3p9odcG
Noctua 80mm NF-A8 FLX fan: amzn.to/3ASVhsJ
Credits
Chiptune Thing No. 3 "Victory" by Steven O’Brien soundcloud.com/stevenobrien
Creative Commons — Attribution 3.0 Unported— CC BY 3.0
http://creativecommons.org/licenses/b...
Music provided by Music for Creators youtu.be/ujIMRIJ1JG8
Modem Image: By secretlondon123 - Flickr: analogue modem, CC BY-SA 2.0, commons.wikimedia.org/w/index.php?curid=13081709
In this video we install a newly manufactured LCD into Sharp EL-5100 calculator. The EL-5100, released in 1979, was a groundbreaking programmable calculator for Sharp. It was first to feature the AER algebraic programming and a dot matrix LCD. It is also a very stylish machine. Join us and find out how it all works out.
Timeline:
00:00 – Welcome
01:42 – LCD test for life
05:25 – Teardown
20:08 – Prep PCB and zebra strips
23:50 – LCD Swap, assemble, test
40:28 – Wrap up. Thanks!
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Links
PC-1211 Video: youtu.be/KHzOBoSHLtg
New LCDs: tindie.com/stores/halfbakedmaker
Japanese Phillips (JIS) mini-screwdriver set: amzn.to/48diDHS
Amazon Associated Links Tools:
Fiberglass pen: amzn.to/3pWRzIk
Fiberglass pen refills: amzn.to/3RgqGdQ
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Hotplate: amzn.to/3rxOtLU
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Heat mats: amzn.to/3MXgSVG
Japanese Phillips (JIS) mini-screwdriver set: amzn.to/48diDHS
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Amazon Associated Links Parts / Supplies:
Foam sheet, 1mm: amzn.to/37CfTtt
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NiMh tabbed AA: amzn.to/3OMjBkW
uxCell strain reliefs: amzn.to/3nJ5AaP
3M Double sided tape: amzn.to/3p9odcG
Noctua 80mm NF-A8 FLX fan: amzn.to/3ASVhsJ
Credits
Chiptune Thing No. 3 "Victory" by Steven O’Brien soundcloud.com/stevenobrien
Creative Commons — Attribution 3.0 Unported— CC BY 3.0
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Music provided by Music for Creators youtu.be/ujIMRIJ1JG8
It’s time for another Ferengi Friday, Christmas 2023 edition! Join us as we take a look at the recent acquisitions that have made their way into the shop. We have some of TI’s 68K calculators, a mystery HP-71 system in bomb proof case, a little box of Sharp goodness and some PCBWay Christmas Swag. Grab your eggnog and hit play!
Timeline:
00:00 – Welcome
01:03 – TI-92 Educational package
11:23 – TI-92 Plus, Voyage 200 faulty
15:57 – Mystery HP-71
21:17 – Sharp goodies
22:13 – PCBWay Christmas swag
28:11 – Wrap up, thanks!
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Links
TI V200 & C64 I2C interface: youtu.be/hvPG87acwt4
TIEdit program: github.com/Jeff-Birt/TIEdit
TI Connect: education.ti.com/en/products/computer-software/ti-connect-sw
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Citric Acid: amzn.to/3krkgdt
Amazon Associated Links Parts / Supplies:
Foam sheet, 1mm: amzn.to/37CfTtt
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NiMh tabbed AA: amzn.to/3OMjBkW
uxCell strain reliefs: amzn.to/3nJ5AaP
3M Double sided tape: amzn.to/3p9odcG
Noctua 80mm NF-A8 FLX fan: amzn.to/3ASVhsJ
Credits
Chiptune Thing No. 3 "Victory" by Steven O’Brien soundcloud.com/stevenobrien
Creative Commons — Attribution 3.0 Unported— CC BY 3.0
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Music provided by Music for Creators youtu.be/ujIMRIJ1JG8
In this video we refurbish a TRS-80 Model 2 Keytronic ‘foam and foil’ keyboard. After learning how to identify the type of keyboard we have a good general cleaning done and a new set of foil/foam pads are installed. We then use a simple BASIC program to test all the keys. Will we get all the keys functioning once more? Join us and find out.
Timeline:
00:00 – Welcome
01:04 – Keyboard types, teardown
12:14 – Foam/Foil pad R&R
22:46 – Reassembly, keycap cleaning and installation
34:23 – Testing
39:02 – Wrap up
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Links
Model 2 Archive: github.com/pski/model2archive
Texelect KB kit: texelec.com/product/foam-capacitive-pads-keytronic
M2 KB ID guide: forum.vcfed.org/index.php?threads/trs-80-model-ii-cherry-keyboard.61600
TRS80GP Emulator: http://48k.ca/trs80gp.html
Model 2 KB test program: github.com/Jeff-Birt/TRS-80_GREY/tree/main/Model_2/KEYBOARD_TEST
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uxCell strain reliefs: amzn.to/3nJ5AaP
3M Double sided tape: amzn.to/3p9odcG
Noctua 80mm NF-A8 FLX fan: amzn.to/3ASVhsJ
Credits
Chiptune Thing No. 3 "Victory" by Steven O’Brien soundcloud.com/stevenobrien
Creative Commons — Attribution 3.0 Unported— CC BY 3.0
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Music provided by Music for Creators youtu.be/ujIMRIJ1JG8
In this video we interface the opposite ends of the TRS-80 computer spectrum: the Model 2 and PC-2. We’ll find a way to create PC-2 programs on the M2, and transfer them using the M2’s TERMINAL program. Well also remotely control the M2 with the PC-2 using the HOST program. We’ll cover how things are wired up and then go over some upcoming M2 related episodes. Join us for the fun.
Timeline:
00:00 – Welcome
01:18 – Using M2 BASIC as a text editor
07:39 – Using TERMINAL on M2 and PC-2, program transfer
13:57 – Trying HOST, remote control of Model 2
18:48 – How to wire M2 to PC-2
23:31 – Wrap up, upcoming M2 videos, thanks!
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Links
Model 2 Archive: github.com/pski/model2archive
Texelect KB kit: texelec.com/product/foam-capacitive-pads-keytronic
Amazon Associated Links Tools:
Fiberglass pen: amzn.to/3pWRzIk
Fiberglass pen refills: amzn.to/3RgqGdQ
OWDEN Hollow punch set: amzn.to/3PXzTXW
Battery Spot Welder: amzn.to/3QMaG3T
Hotplate: amzn.to/3rxOtLU
Spudger set I use: amzn.to/3z19pM7
Heat mats: amzn.to/3MXgSVG
Amazon Associated Links Chemicals:
303 Aerospace Protectant: amzn.to/3BxRa5Y
CiaKot: amzn.to/3CvVKiY
Overcaot Pen: amzn.to/3s439Bt
Novus Plastic Polish: amzn.to/2VwtFaV
Electronics / PCB cleaner: amzn.to/3ORx62D
Citric Acid: amzn.to/3krkgdt
Amazon Associated Links Parts / Supplies:
Foam sheet, 1mm: amzn.to/37CfTtt
Uxcell shrink wrap: amzn.to/3boKJEd
NiMh tabbed Sun-C: amzn.to/3nHCbxL
NiMh tabbed AA: amzn.to/3OMjBkW
uxCell strain reliefs: amzn.to/3nJ5AaP
3M Double sided tape: amzn.to/3p9odcG
Noctua 80mm NF-A8 FLX fan: amzn.to/3ASVhsJ
Credits
Chiptune Thing No. 3 "Victory" by Steven O’Brien soundcloud.com/stevenobrien
Creative Commons — Attribution 3.0 Unported— CC BY 3.0
http://creativecommons.org/licenses/b...
Music provided by Music for Creators youtu.be/ujIMRIJ1JG8
In this video we take a look at a pair of Casio FX-841P pocket computers sent in from England for repair. They both have LCD troubles, but each is a unique problem. We’ll do our best to get this pair of pokecoms purring perfectly. But sometimes fate has other plans.
Timeline:
00:00 – Welcome
01:31 – Unit #2, missing rows on LCD
09:50 – LCD reseal attempt
13:57 – Testing and bodging
18:18 – Unit #1, dim LCD
21:51 – Testing and sadness
25:34 – Replacing mystery cap, test #2
27:37 – Wrap up
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Links
Anisotropic conductive tape: en.wikipedia.org/wiki/Anisotropic_conductive_film
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Fiberglass pen: amzn.to/3pWRzIk
Fiberglass pen refills: amzn.to/3RgqGdQ
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Hotplate: amzn.to/3rxOtLU
Spudger set I use: amzn.to/3z19pM7
Heat mats: amzn.to/3MXgSVG
Amazon Associated Links Chemicals:
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CiaKot: amzn.to/3CvVKiY
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Novus Plastic Polish: amzn.to/2VwtFaV
Electronics / PCB cleaner: amzn.to/3ORx62D
Citric Acid: amzn.to/3krkgdt
Amazon Associated Links Parts / Supplies:
Foam sheet, 1mm: amzn.to/37CfTtt
Uxcell shrink wrap: amzn.to/3boKJEd
NiMh tabbed Sun-C: amzn.to/3nHCbxL
NiMh tabbed AA: amzn.to/3OMjBkW
uxCell strain reliefs: amzn.to/3nJ5AaP
3M Double sided tape: amzn.to/3p9odcG
Noctua 80mm NF-A8 FLX fan: amzn.to/3ASVhsJ
Credits
Chiptune Thing No. 3 "Victory" by Steven O’Brien soundcloud.com/stevenobrien
Creative Commons — Attribution 3.0 Unported— CC BY 3.0
http://creativecommons.org/licenses/b...
Music provided by Music for Creators youtu.be/ujIMRIJ1JG8
In this episode we take a look at all the acquisitions from a recent 2750 mile trek across the USA. We found everything from vintage paper to vintage pixels to computing devices pocket sized and well, not so pocket sized. Join us and have a gander.
Timeline:
00:00 – Welcome
01:32 – Misc. from Tandy Assembly 2023
04:55 – Goodies from HHC 2023
14:27 – TRS-80 Model II Overview
22:28 – TRS-80 Model II Look Inside
25:03 – TRS-80 Model II Accessories
36:00 – TRS-80 Model II Power!
37:15 – Wrap up. Thanks!
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Links
HHC Flash Drive: hpmuseum.org/cd/cddesc.htm
Eric’s site:
TRS-80 Model II 512K presentation: youtube.com/watch?v=_I01NHzUzNk
TRS-80 Model II 512K PCB: bkje.short.gy
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Hotplate: amzn.to/3rxOtLU
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Heat mats: amzn.to/3MXgSVG
Amazon Associated Links Chemicals:
303 Aerospace Protectant: amzn.to/3BxRa5Y
CiaKot: amzn.to/3CvVKiY
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Electronics / PCB cleaner: amzn.to/3ORx62D
Citric Acid: amzn.to/3krkgdt
Amazon Associated Links Parts / Supplies:
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NiMh tabbed AA: amzn.to/3OMjBkW
uxCell strain reliefs: amzn.to/3nJ5AaP
3M Double sided tape: amzn.to/3p9odcG
Noctua 80mm NF-A8 FLX fan: amzn.to/3ASVhsJ
Credits
Chiptune Thing No. 3 "Victory" by Steven O’Brien soundcloud.com/stevenobrien
Creative Commons — Attribution 3.0 Unported— CC BY 3.0
http://creativecommons.org/licenses/b...
Music provided by Music for Creators youtu.be/ujIMRIJ1JG8
I was able to attend Tandy Assembly 2023 this year. It is always a good time. Reuniting with friends, enjoying the presentations and machines, parts, misc. that folks bring to display and sell. I took a few walks around the floor to look at everything and stopped and talked to folks about their displays when I could. The audio quality is not great but then such shows are always noisy in person too.
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Links
TASM 2023 Presentations: youtube.com/@tandyassembly3099
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Fiberglass pen refills: amzn.to/3RgqGdQ
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Hotplate: amzn.to/3rxOtLU
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Heat mats: amzn.to/3MXgSVG
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Amazon Associated Links Parts / Supplies:
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3M Double sided tape: amzn.to/3p9odcG
Noctua 80mm NF-A8 FLX fan: amzn.to/3ASVhsJ
Credits
Chiptune Thing No. 3 "Victory" by Steven O’Brien soundcloud.com/stevenobrien
Creative Commons — Attribution 3.0 Unported— CC BY 3.0
http://creativecommons.org/licenses/b...
Music provided by Music for Creators youtu.be/ujIMRIJ1JG8
In this video we test a bunch of random vintage computer gear I’m taking along with me to two computer shows. I want folks to be able to use the computer and printers so we’ll try to work the bugs out now, before we leave. Join us and let’s see what works, what does not and how we get along with some last minute fixes.
Timeline:
00:00 – Welcome
01:21 – Panasonic HHC, 6502 based pocket computer
05:26 – Two cassette decks we fixed a year ago
06:54 – Testing a Tandy TPDD-1 and TPDD-2
15:37 – The ‘Pig Pin” TRS-80 PC-1 and printer/cassette interface
21:02 – A quick look at a PC-1251/CE-125P and EL-5500-III/CE-122P
24:26 – TRS-80 Model 100, BPD+ and CGP-115 Printer/Plotter
28:29 – TRS-80 PC-2 with Printer/Cassette interface and CGP-115
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Links
Cassette decks video: youtu.be/aG65TAqzqyc
TPDD videos: youtu.be/8aYP1kLnpoI, youtu.be/HvlkfiHSK28
Pig Pin PC-1 video: youtu.be/QfmBg-bRvTo
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Hotplate: amzn.to/3rxOtLU
Spudger set I use: amzn.to/3z19pM7
Heat mats: amzn.to/3MXgSVG
Amazon Associated Links Chemicals:
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CiaKot: amzn.to/3CvVKiY
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Novus Plastic Polish: amzn.to/2VwtFaV
Electronics / PCB cleaner: amzn.to/3ORx62D
Citric Acid: amzn.to/3krkgdt
Amazon Associated Links Parts / Supplies:
Foam sheet, 1mm: amzn.to/37CfTtt
Uxcell shrink wrap: amzn.to/3boKJEd
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NiMh tabbed AA: amzn.to/3OMjBkW
uxCell strain reliefs: amzn.to/3nJ5AaP
3M Double sided tape: amzn.to/3p9odcG
Noctua 80mm NF-A8 FLX fan: amzn.to/3ASVhsJ
Credits
Chiptune Thing No. 3 "Victory" by Steven O’Brien soundcloud.com/stevenobrien
Creative Commons — Attribution 3.0 Unported— CC BY 3.0
http://creativecommons.org/licenses/b...
Music provided by Music for Creators youtu.be/ujIMRIJ1JG8
In this video we take a look at an MSD Super Disk Drive SD-1 for the Commodore VIC-20, C 64, and B series business machines. These have the reputation of being sturdily built but are also known for having leaking capacitors. This unit does not disappoint. Can we get it working again?
Join us and find out.
Timeline:
00:00 – Welcome
01:24 – Unboxing and tour
06:02 – Teardown and cap hunt on main PCB
23:10 – Drive disaster!
36:25 – Drive motor board
41:42 – Clean, lube, assemble
48:26 – Testing, fix and fix and fix again, set drive speed
56:18 – Wrap up, thanks!
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Links
Ray Stevenson MSD Page: portcommodore.com/rcarlsen/cbm/msd
DVI Manual: trs-80.com/cgi-bin/down-ok-manuals-service.pl?Disk-Video%20Interface%20Service%20Manual%20(19xx)(Tandy)[26-3086].zip
Ozark’s Road Trip Video: youtu.be/MOAJyHKy-8k
Cooling down 1541 video: youtu.be/pqh3oBwzF7k
Amazon Associated Links Tools:
Fiberglass pen: amzn.to/3pWRzIk
Fiberglass pen refills: amzn.to/3RgqGdQ
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Battery Spot Welder: amzn.to/3QMaG3T
Hotplate: amzn.to/3rxOtLU
Spudger set I use: amzn.to/3z19pM7
Heat mats: amzn.to/3MXgSVG
Amazon Associated Links Chemicals:
303 Aerospace Protectant: amzn.to/3BxRa5Y
CiaKot: amzn.to/3CvVKiY
Overcaot Pen: amzn.to/3s439Bt
Novus Plastic Polish: amzn.to/2VwtFaV
Electronics / PCB cleaner: amzn.to/3ORx62D
Citric Acid: amzn.to/3krkgdt
Amazon Associated Links Parts / Supplies:
Foam sheet, 1mm: amzn.to/37CfTtt
Uxcell shrink wrap: amzn.to/3boKJEd
NiMh tabbed Sun-C: amzn.to/3nHCbxL
NiMh tabbed AA: amzn.to/3OMjBkW
uxCell strain reliefs: amzn.to/3nJ5AaP
3M Double sided tape: amzn.to/3p9odcG
Noctua 80mm NF-A8 FLX fan: amzn.to/3ASVhsJ
Credits
Chiptune Thing No. 3 "Victory" by Steven O’Brien soundcloud.com/stevenobrien
Creative Commons — Attribution 3.0 Unported— CC BY 3.0
http://creativecommons.org/licenses/b...
Music provided by Music for Creators youtu.be/ujIMRIJ1JG8
It’s time for another Ferengi Friday where we take a look at some of the recent acquisitions that have made their way into the shop. This week we have two boxes and do one repair attempt. We have one success and one failure but we learn a lot along and way.
Timeline:
00:00 – Welcome
01:08 – Sharp EL-5500III
08:10 – Sharp PC-1600
13:50 – Sharp EL-5500III repair attempt
30:47 – Wrap up. Thanks!
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Links
Sharp CE-515P video: youtu.be/14qQw5q8uno
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Citric Acid: amzn.to/3krkgdt
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Foam sheet, 1mm: amzn.to/37CfTtt
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uxCell strain reliefs: amzn.to/3nJ5AaP
3M Double sided tape: amzn.to/3p9odcG
Noctua 80mm NF-A8 FLX fan: amzn.to/3ASVhsJ
Credits
Chiptune Thing No. 3 "Victory" by Steven O’Brien soundcloud.com/stevenobrien
Creative Commons — Attribution 3.0 Unported— CC BY 3.0
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Music provided by Music for Creators youtu.be/ujIMRIJ1JG8
In this video we’ll refurbish a Sharp CE-125 microcassette and printer interface for the PC-1250/PC-1251 pocket computer. It will need a new set of belts installed after removing all the goo left behind by the originals. We’ll also install a new, custom-made battery pack. We’ll finish up testing it out and seeing if there are programs on the cassette that came with the unit.
Timeline:
00:00 – Welcome
03:02 – Teardown, belt R & R
23:40 – Cassette mech install, printer check, battery pack install
33:50 – Tape eraser
34:47 – Testing
50:27 – Tidbits and wrap up
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Links
Japanese CE-125 page: ht-deko.com/pc1245/ce125_repair.html
Belts: (1) PRB SCY 4.4 - marvac.com/products/prb-scy-4-4-square-cut-belt-for-vcr-cassette-cd-drive-or-dvd-drive-scy4-4
(1) PRB SCY 5.0 - marvac.com/products/prb-scy-5-0-square-cut-belt-for-vcr-cassette-cd-drive-or-dvd-drive-scy5-0
(1) PRB SCY 6.3 - marvac.com/products/prb-scy-6-3-square-cut-belt-for-vcr-cassette-cd-drive-or-dvd-drive-scy6-3
Vintage gear charging: youtu.be/f2ShjK9uq9Y
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NiMh tabbed AA: amzn.to/3OMjBkW
uxCell strain reliefs: amzn.to/3nJ5AaP
3M Double sided tape: amzn.to/3p9odcG
Noctua 80mm NF-A8 FLX fan: amzn.to/3ASVhsJ
Credits
Chiptune Thing No. 3 "Victory" by Steven O’Brien soundcloud.com/stevenobrien
Creative Commons — Attribution 3.0 Unported— CC BY 3.0
http://creativecommons.org/licenses/b...
Music provided by Music for Creators youtu.be/ujIMRIJ1JG8
In this video we take a look at a Sharp CE-515P A4 sized 4-color printer/plotter imported from Japan. It uses a 3rd generation Alps printer/plotter mechanism. How similar is this mech to the older generations? Will our unit work? Will there be any complications with the voltage or character set differences? Join us and find out.
Timeline:
00:00 – Welcome
02:09 - # generations of Alps mechanism
04:53 – Teardown, theory of operation
17:56 – Power supply testing, 1st powerup
23:57 – If you fail to print, try, try again
32:07 – Wrap up, Thanks!
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Links
Sharp CE-515 Japanese Auto-translated English User’s Manual : archive.org/details/sharp-ce-515-p-japanese/Sharp_CE-515P_English_Translation
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Hotplate: amzn.to/3rxOtLU
Spudger set I use: amzn.to/3z19pM7
Heat mats: amzn.to/3MXgSVG
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303 Aerospace Protectant: amzn.to/3BxRa5Y
CiaKot: amzn.to/3CvVKiY
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Citric Acid: amzn.to/3krkgdt
Amazon Associated Links Parts / Supplies:
Foam sheet, 1mm: amzn.to/37CfTtt
Uxcell shrink wrap: amzn.to/3boKJEd
NiMh tabbed Sun-C: amzn.to/3nHCbxL
NiMh tabbed AA: amzn.to/3OMjBkW
uxCell strain reliefs: amzn.to/3nJ5AaP
3M Double sided tape: amzn.to/3p9odcG
Noctua 80mm NF-A8 FLX fan: amzn.to/3ASVhsJ
Credits
Chiptune Thing No. 3 "Victory" by Steven O’Brien soundcloud.com/stevenobrien
Creative Commons — Attribution 3.0 Unported— CC BY 3.0
http://creativecommons.org/licenses/b...
Music provided by Music for Creators youtu.be/ujIMRIJ1JG8
In this video we take a look at a pair of slim sexy 70s digital multimeters by HP, the HP 3476A. These have been on the shelf for years. It is time to take them down. See what condition they are in and try to fix what is broken. Will we get lucky and get two testers ticking? Join us and find out.
Timeline:
00:00 – Welcome
01:25 – Initial evaluation and testing of both units
08:11 – Unit #1 Tear down and display doctoring
16:51 – Assembly and testing
26:56 – Unit #2 Big problem with a little meter
31:56 – Last desperate diagnostics
36:55 – Wrap up, thanks!
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HP Journal Vol. 28 No. 6, 1977: archive.org/details/Hewlett-Packard_Journal_Vol._28_No._6_1977-02_Hewlett-Packard
Links
Zadig: http://zadig.akeo.ie/
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Fiberglass pen: amzn.to/3pWRzIk
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Hotplate: amzn.to/3rxOtLU
Spudger set I use: amzn.to/3z19pM7
Heat mats: amzn.to/3MXgSVG
Amazon Associated Links Chemicals:
303 Aerospace Protectant: amzn.to/3BxRa5Y
CiaKot: amzn.to/3CvVKiY
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Electronics / PCB cleaner: amzn.to/3ORx62D
Citric Acid: amzn.to/3krkgdt
Amazon Associated Links Parts / Supplies:
Foam sheet, 1mm: amzn.to/37CfTtt
Uxcell shrink wrap: amzn.to/3boKJEd
NiMh tabbed Sun-C: amzn.to/3nHCbxL
NiMh tabbed AA: amzn.to/3OMjBkW
uxCell strain reliefs: amzn.to/3nJ5AaP
3M Double sided tape: amzn.to/3p9odcG
Noctua 80mm NF-A8 FLX fan: amzn.to/3ASVhsJ
Credits
Chiptune Thing No. 3 "Victory" by Steven O’Brien soundcloud.com/stevenobrien
Creative Commons — Attribution 3.0 Unported— CC BY 3.0
http://creativecommons.org/licenses/b...
Music provided by Music for Creators youtu.be/ujIMRIJ1JG8
In this video we take a look at a TRS-80 Model 200 which does not boot and has a strange symptom. This sort of symptom can lead one down the primrose path but luckily we find it is a simple fix and as a bonus we fix a bent AA battery contact as well.
Timeline:
00:00 – Welcome
01:07 – Strange symptom
02:10 – Memory battery testing and replacement
08:11 – Partial assembly for testing and testing
11:08 – Bonus AA contact repair
14:37 – Wrap up. Thanks!
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Links
TRS-80 Model 200 that won’t quit: youtu.be/66DIgwN0wvM
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Fiberglass pen refills: amzn.to/3RgqGdQ
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Battery Spot Welder: amzn.to/3QMaG3T
Hotplate: amzn.to/3rxOtLU
Spudger set I use: amzn.to/3z19pM7
Heat mats: amzn.to/3MXgSVG
Amazon Associated Links Chemicals:
303 Aerospace Protectant: amzn.to/3BxRa5Y
CiaKot: amzn.to/3CvVKiY
Overcaot Pen: amzn.to/3s439Bt
Novus Plastic Polish: amzn.to/2VwtFaV
Electronics / PCB cleaner: amzn.to/3ORx62D
Citric Acid: amzn.to/3krkgdt
Amazon Associated Links Parts / Supplies:
Foam sheet, 1mm: amzn.to/37CfTtt
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NiMh tabbed AA: amzn.to/3OMjBkW
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3M Double sided tape: amzn.to/3p9odcG
Noctua 80mm NF-A8 FLX fan: amzn.to/3ASVhsJ
Credits
Chiptune Thing No. 3 "Victory" by Steven O’Brien soundcloud.com/stevenobrien
Creative Commons — Attribution 3.0 Unported— CC BY 3.0
http://creativecommons.org/licenses/b...
Music provided by Music for Creators youtu.be/ujIMRIJ1JG8
In this video we take a look at two early 1980s composite CRT displays. One is a ultra boring 9” security monitor. Not much to look at but compact and sturdily built. The other is a super sexy 12” amber monitor which looks like it was made from a groovy 1970’s portable TV chassis. Let’s see if we can get these two mini monitors working.
Timeline:
00:00 – Welcome
01:29 – Hitachi VM-910A ‘Monitor of Borg’
03:44 – Hitachi VM-910A Teardown
08:57 – Dim bulb tester
12:29 – Hitachi VM-910A test, clean pots
21:34 – Comrex VR-5500 Groovy ‘70s design
25:09 – Comrex VR-5500 teardown, test
33:22 – Comrex VR-5500 testing
39:56 – Comrex VR-5500 front cover foam
42:50 – Wrap up, HV danger, Thanks
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Links
CRT HV Safety: lowendmac.com/2007/the-truth-about-crts-and-shock-danger
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Hotplate: amzn.to/3rxOtLU
Spudger set I use: amzn.to/3z19pM7
Heat mats: amzn.to/3MXgSVG
Amazon Associated Links Chemicals:
303 Aerospace Protectant: amzn.to/3BxRa5Y
CiaKot: amzn.to/3CvVKiY
Overcaot Pen: amzn.to/3s439Bt
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Citric Acid: amzn.to/3krkgdt
Amazon Associated Links Parts / Supplies:
Foam sheet, 1mm: amzn.to/37CfTtt
Uxcell shrink wrap: amzn.to/3boKJEd
NiMh tabbed Sun-C: amzn.to/3nHCbxL
NiMh tabbed AA: amzn.to/3OMjBkW
uxCell strain reliefs: amzn.to/3nJ5AaP
3M Double sided tape: amzn.to/3p9odcG
Noctua 80mm NF-A8 FLX fan: amzn.to/3ASVhsJ
Credits
Chiptune Thing No. 3 "Victory" by Steven O’Brien soundcloud.com/stevenobrien
Creative Commons — Attribution 3.0 Unported— CC BY 3.0
http://creativecommons.org/licenses/b...
Music provided by Music for Creators youtu.be/ujIMRIJ1JG8
In this video we take a look at the CE-158X ‘EXTREME’, a more modern and improved RS232/LPT/USB interface for the Sharp PC-1500. This project has taken a few years to first build the tooling: Assembler, disassembler, processor simulator, library file generator. Thanks to a friend who created a PC-1500 simulator in hardware as well as the actual CE-158X the project really took off. Join us as we find out about what went into creating the CE-158X and what it can do.
Timeline:
00:00 – Welcome
01:18 – Project introduction
04:40 – Phone a friend, a friend unleashes his wizardry
14:56 – Demonstrations
24:25 – Wrap up, next steps
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Links
lhTools: http://www.pc1500.com/lhTools.html
TASM video: youtu.be/kamDP5FA6Bg
TASM GitHub: github.com/Jeff-Birt/TASM_vsCode_Extension
CE-158 GitHub: github.com/Jeff-Birt/Sharp_CE-158
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3M Double sided tape: amzn.to/3p9odcG
Noctua 80mm NF-A8 FLX fan: amzn.to/3ASVhsJ
Credits
Chiptune Thing No. 3 "Victory" by Steven O’Brien soundcloud.com/stevenobrien
Creative Commons — Attribution 3.0 Unported— CC BY 3.0
http://creativecommons.org/licenses/b...
Music provided by Music for Creators youtu.be/ujIMRIJ1JG8
In this video we discover why the Commodore 1541 disk drive gets so warm. We cover a few modern remedies for this problem and then try one out. We’ll instrument our 1541 and collect temperature data with both the original regulators and new modern replacements. How much cooler will our C= 1541 run? Join us and find out.
Timeline
00:00 – Welcome
01:06 – Why do linear regulators get hot?
06:08 – Switching regulators, data collection
13:34 – Swapping in new switching regulators
18:20 – Testing new switching regulators
26:00 – Results
28:13 – Wrap up
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Links
Check Hutchin’s channel: youtube.com/@HutchCA
EZ_SBC regulator: ezsbc.com/product-category/voltage-regulators-2 (PSU6 12V, PSU5 5V)
Temp sensors: analog.com/en/products/ds18b20.html
Code: github.com/Jeff-Birt/C1541_Data_Collection
OpenCBM on RPi: keathmilligan.net/vintage-c64-computing-opencbm-and-raspberry-pi
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Heat mats: amzn.to/3boKDwl
Amazon Associated Links Chemicals:
303 Aerospace Protectant: amzn.to/3BxRa5Y
CiaKot: amzn.to/3CvVKiY
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Electronics / PCB cleaner: amzn.to/3ORx62D
Citric Acid: amzn.to/3krkgdt
Amazon Associated Links Parts / Supplies:
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NiMh tabbed AA: amzn.to/3OMjBkW
uxCell strain reliefs: amzn.to/3nJ5AaP
3M Double sided tape: amzn.to/3rYCxBX
Noctua 80mm NF-A8 FLX fan: amzn.to/3ASVhsJ
Credits
Chiptune Thing No. 3 "Victory" by Steven O’Brien soundcloud.com/stevenobrien
Creative Commons — Attribution 3.0 Unported— CC BY 3.0
http://creativecommons.org/licenses/b...
Music provided by Music for Creators youtu.be/ujIMRIJ1JG8
This video is a bit of a ‘mission report’ on my five-year trek to find the same sort of C64 fast load cart I had as a kid. Will I find one? Will it work? What about the compatibility problems I experienced as a kid? Join us and find out how this long turn mission worked out.
Timeline:
00:00 – Welcome
01:20 – The five-year mission
06:07 – Testing and a surprise!
09:05 – Compatibility testing and another surprise!
13:!4 – Warp up, cart on/off switch?
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Links
Fast Load Comparison: c64-wiki.com/wiki/Comparison_of_fast_loaders
Jet Load discussion: groups.google.com/g/comp.sys.cbm/c/yz9pkrLO9c8
Fast Load RAR: http://ar.c64.org/wiki/Epyx_FastLoad
My Express Load bin: archive.org/details/express-load
Zoom Floppy videos: youtube.com/playlist?list=PLegscpHOheJsNyMCf7igc0x2LcvRGqWTS
C64 Case repair video: youtube.com/watch?v=BlKifWyH7lA
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Hotplate: amzn.to/3rxOtLU
Spudger set I use: amzn.to/3z19pM7
Heat mats: amzn.to/3boKDwl
Amazon Associated Links Chemicals:
303 Aerospace Protectant: amzn.to/3BxRa5Y
CiaKot: amzn.to/3CvVKiY
Overcaot Pen: amzn.to/3s439Bt
Novus Plastic Polish: amzn.to/2VwtFaV
Electronics / PCB cleaner: amzn.to/3ORx62D
Citric Acid: amzn.to/3krkgdt
Amazon Associated Links Parts / Supplies:
Foam sheet, 1mm: amzn.to/37CfTtt
Uxcell shrink wrap: amzn.to/3boKJEd
NiMh tabbed Sun-C: amzn.to/3nHCbxL
NiMh tabbed AA: amzn.to/3OMjBkW
uxCell strain reliefs: amzn.to/3nJ5AaP
3M Double sided tape: amzn.to/3rYCxBX
Noctua 80mm NF-A8 FLX fan: amzn.to/3ASVhsJ
Credits
Chiptune Thing No. 3 "Victory" by Steven O’Brien soundcloud.com/stevenobrien
Creative Commons — Attribution 3.0 Unported— CC BY 3.0
http://creativecommons.org/licenses/b...
Music provided by Music for Creators youtu.be/ujIMRIJ1JG8
Once the imaging is done, we’ll use various free software packages to edit the images and create a searchable PDF thanks to OCR (Optical Character Recognition).
Timeline:
00:00 – Welcome
00:35 – Overview of the process
05:49 – Using a flatbed scanner
10:18 – CZUR ET 24 Pro tour and use
25:42 – GIMP
37:04 – IRFANVIEW
40:10 – PDF Creator
46:27 – Wrap up, thanks!
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Links
CZUR: shop.czur.com/products/etscanner?variant=40313243762736
CZUR ET 24 Pro: bit.ly/HeyBirt-CZUR-ET24Pro
Brother MFC-J6945DW: amzn.to/42w4kuK
Large stationary clamps: amzn.to/3phYZsE
GIMP: gimp.org
IRFANVIEW: irfanview.com
PDFCreator24: tools.pdf24.org/en/creator
Sharp EL-5100III Computing the Sciences: archive.org/details/computing-the-sciences-sharp-el-5100-iii-ocred/Computing_the_Sciences_Sharp_EL-5100III
Sharp PC-1211 Instruction Manual: archive.org/details/sharp-pc-1211-instruction-manual-ocred/Sharp_PC-1211_Instruction_Manual
Sharp PC-1500 Technical Manual: archive.org/details/sharp-pc-1500-tech-ref-manual-ocred
CNSystems Astro Navigation: archive.org/details/cn-2000-astro-navigation-ocred/CN-2000_Astro-Navigation
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Hotplate: amzn.to/3rxOtLU
Spudger set I use: amzn.to/3z19pM7
Heat mats: amzn.to/3boKDwl
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CiaKot: amzn.to/3CvVKiY
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Citric Acid: amzn.to/3krkgdt
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NiMh tabbed AA: amzn.to/3OMjBkW
uxCell strain reliefs: amzn.to/3nJ5AaP
3M Double sided tape: amzn.to/3rYCxBX
Noctua 80mm NF-A8 FLX fan: amzn.to/3ASVhsJ
Credits
Chiptune Thing No. 3 "Victory" by Steven O’Brien soundcloud.com/stevenobrien
Creative Commons — Attribution 3.0 Unported— CC BY 3.0
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Music provided by Music for Creators youtu.be/ujIMRIJ1JG8
It is time for another Ferengi Friday! Ferengi Friday is that time when we take a look at the recent acquisitions that have made their way into the shop. Boxes have been piling up for months now, what is inside? Join us and find out!
Timeline:
00-00 – Welcome
00:36 – Box #1: TRS-80 PC-1 and PC-2 SW and HX, plus misc.
08:08 – Box #2: A Japanese redhead, NEC-8201
12:49 – Box #3: An M100 from a trade
14:31 – Box #4: Even more TRS-80 PC-1 boxed SW
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Hotplate: amzn.to/3rxOtLU
Spudger set I use: amzn.to/3z19pM7
Heat mats: amzn.to/3boKDwl
Amazon Associated Links Chemicals:
303 Aerospace Protectant: amzn.to/3BxRa5Y
CiaKot: amzn.to/3CvVKiY
Overcaot Pen: amzn.to/3s439Bt
Novus Plastic Polish: amzn.to/2VwtFaV
Electronics / PCB cleaner: amzn.to/3ORx62D
Citric Acid: amzn.to/3krkgdt
Amazon Associated Links Parts / Supplies:
Foam sheet, 1mm: amzn.to/37CfTtt
Uxcell shrink wrap: amzn.to/3boKJEd
NiMh tabbed Sun-C: amzn.to/3nHCbxL
NiMh tabbed AA: amzn.to/3OMjBkW
uxCell strain reliefs: amzn.to/3nJ5AaP
3M Double sided tape: amzn.to/3rYCxBX
Noctua 80mm NF-A8 FLX fan: amzn.to/3ASVhsJ
Credits
Chiptune Thing No. 3 "Victory" by Steven O’Brien soundcloud.com/stevenobrien
Creative Commons — Attribution 3.0 Unported— CC BY 3.0
http://creativecommons.org/licenses/b...
Music provided by Music for Creators youtu.be/ujIMRIJ1JG8
In this video we take a look at a Tandy/TRS-80 Model 102 with a few questionable vintage upgrades. No doubt someone did the best they could back in the day but they did not age well. We’ll revert these mods to more of a factory condition and then get led down the primrose path when testing. Will we get this poor little T102 working again?
Timeline:
00:00 – Welcome
01:28 – What’s the problem?
06:13 – Fixing those ‘upgrades’
21:42 – Testing
27:00 – Down the primrose path…
35:11 – Wrap up, thanks!
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Hotplate: amzn.to/3rxOtLU
Spudger set I use: amzn.to/3z19pM7
Heat mats: amzn.to/3boKDwl
Amazon Associated Links Chemicals:
303 Aerospace Protectant: amzn.to/3BxRa5Y
CiaKot: amzn.to/3CvVKiY
Overcaot Pen: amzn.to/3s439Bt
Novus Plastic Polish: amzn.to/2VwtFaV
Electronics / PCB cleaner: amzn.to/3ORx62D
Citric Acid: amzn.to/3krkgdt
Amazon Associated Links Parts / Supplies:
Foam sheet, 1mm: amzn.to/37CfTtt
Uxcell shrink wrap: amzn.to/3boKJEd
NiMh tabbed Sun-C: amzn.to/3nHCbxL
NiMh tabbed AA: amzn.to/3OMjBkW
uxCell strain reliefs: amzn.to/3nJ5AaP
3M Double sided tape: amzn.to/3rYCxBX
Noctua 80mm NF-A8 FLX fan: amzn.to/3ASVhsJ
Credits
Chiptune Thing No. 3 "Victory" by Steven O’Brien soundcloud.com/stevenobrien
Creative Commons — Attribution 3.0 Unported— CC BY 3.0
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Music provided by Music for Creators youtu.be/ujIMRIJ1JG8
In this video we’ll follow on from the Backpack Quick Start. We’ll cover the differences in the newer Backpack Drive Plus (BPD+), and discuss the file layout on GitHub for both versions. We will also find out how to discover if the .BA programs for your M100 are really .DO, what problems this causes and how to avoid them. We will learn how to change the operating mode for machines covered in standard firmware, how to update firmware including updating to the special Epson version. We will then take a look at the adapters that are available to connect the Backpack with your computer.
In an upcoming episode we’ll go into more advanced Backpack topics such as transferring files using XMODEM, writing BASIC programs to access Backpack feature and connecting the BPD to your PC and accessing it through VirtualT.
Timeline:
00:00 – Welcome
01:01 – Differences between BPD and BPD+
04:28 – The users manual, GitHub page and product page
05:09 – Model T computers: How to tell if .BA files are really .DO
10:10 – CLI basics
17:30 – Adapters for other computers, wrap up
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Links
Backpack page: soigeneris.com/tandy-tpdd-2-backpack-drive-2
Github page: github.com/Jeff-Birt/Backpack
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Heat mats: amzn.to/3boKDwl
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NiMh tabbed Sun-C: amzn.to/3nHCbxL
NiMh tabbed AA: amzn.to/3OMjBkW
uxCell strain reliefs: amzn.to/3nJ5AaP
3M Double sided tape: amzn.to/3rYCxBX
Noctua 80mm NF-A8 FLX fan: amzn.to/3ASVhsJ
Credits
Chiptune Thing No. 3 "Victory" by Steven O’Brien soundcloud.com/stevenobrien
Creative Commons — Attribution 3.0 Unported— CC BY 3.0
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Music provided by Music for Creators youtu.be/ujIMRIJ1JG8
In this video we take a look at some spiffy AA/AAA sized Lithium rechargeable batteries. Modern rechargeable lithium power for vintage gear without any modifications. I have been testing these cells for more than a year now and am pleased with how they perform. It was time to be a little more scientific though and do some actual tests to see how they perform compared to alkaline cells. Join us for the results.
Timeline:
00:00 – Welcome
01:14 – Introduction to Lithium AA/AAA cells
06:22 – Testing
10:14 – Test results
12:49 – Differences in battery chemistry
14:05 – Wrap up. Thanks!
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Battery Spot Welder: amzn.to/3QMaG3T
Hotplate: amzn.to/3rxOtLU
Spudger set I use: amzn.to/3z19pM7
Heat mats: amzn.to/3boKDwl
Amazon Associated Links Chemicals:
303 Aerospace Protectant: amzn.to/3BxRa5Y
CiaKot: amzn.to/3CvVKiY
Overcaot Pen: amzn.to/3s439Bt
Novus Plastic Polish: amzn.to/2VwtFaV
Electronics / PCB cleaner: amzn.to/3ORx62D
Citric Acid: amzn.to/3krkgdt
Amazon Associated Links Parts / Supplies:
Foam sheet, 1mm: amzn.to/37CfTtt
Uxcell shrink wrap: amzn.to/3boKJEd
NiMh tabbed Sun-C: amzn.to/3nHCbxL
NiMh tabbed AA: amzn.to/3OMjBkW
uxCell strain reliefs: amzn.to/3nJ5AaP
3M Double sided tape: amzn.to/3rYCxBX
Noctua 80mm NF-A8 FLX fan: amzn.to/3ASVhsJ
Credits
Chiptune Thing No. 3 "Victory" by Steven O’Brien soundcloud.com/stevenobrien
Creative Commons — Attribution 3.0 Unported— CC BY 3.0
http://creativecommons.org/licenses/b...
Music provided by Music for Creators youtu.be/ujIMRIJ1JG8
In this video we take a look at the ‘Dial-A-ROM’ a spiffy new multi-ROM for vintage portable computers. It was designed by the same guy who did the Backpack drive. First, we’ll learn how to use the Dial-A-ROM with the ROM images that come preinstalled on it. Then we’ll see how to add our own ROM images if we so desire.
Timeline:
00:00 – Welcome
01:10 – DAR Intro, installation and ROM activation
04:44 – DAR programming (option)
10:34 – Testing new ROM we programmed
13:50 – Wrap up
Join us and see how nifty the DAR is!
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Links
Dial-A-ROM page: soigeneris.com/dial-a-rom-for-vintage-computers
Newer version of programmer I used: amzn.to/3Ib9Wlj
HexEdit (free hex editor): sourceforge.net/projects/hexedit
HxD (free hex editor): https://mh-nexus.de/en/hxd/
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Fiberglass pen: amzn.to/3pWRzIk
Fiberglass pen refills: amzn.to/3RgqGdQ
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Hotplate: amzn.to/3rxOtLU
Spudger set I use: amzn.to/3z19pM7
Heat mats: amzn.to/3boKDwl
Amazon Associated Links Chemicals:
303 Aerospace Protectant: amzn.to/3BxRa5Y
CiaKot: amzn.to/3CvVKiY
Overcaot Pen: amzn.to/3s439Bt
Novus Plastic Polish: amzn.to/2VwtFaV
Electronics / PCB cleaner: amzn.to/3ORx62D
Citric Acid: amzn.to/3krkgdt
Amazon Associated Links Parts / Supplies:
Foam sheet, 1mm: amzn.to/37CfTtt
Uxcell shrink wrap: amzn.to/3boKJEd
NiMh tabbed Sun-C: amzn.to/3nHCbxL
NiMh tabbed AA: amzn.to/3OMjBkW
uxCell strain reliefs: amzn.to/3nJ5AaP
3M Double sided tape: amzn.to/3rYCxBX
Noctua 80mm NF-A8 FLX fan: amzn.to/3ASVhsJ
Credits
Chiptune Thing No. 3 "Victory" by Steven O’Brien soundcloud.com/stevenobrien
Creative Commons — Attribution 3.0 Unported— CC BY 3.0
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Music provided by Music for Creators youtu.be/ujIMRIJ1JG8
In this video we take a look at an official TRS-80 Model 100 factory modification that was done to the RS-232 port. This was released as TSB 100-001 almost 40 years ago. The early M100s had too large a currently limiting resistor in the RS-232 output lines which caused compatibility problems with some other TRS-80 products as well as other RS-232 devices.
We discover what the problem is, we apply the modification as per the bulletin, and test the results to see how it performs. We also find this same modification also applies to the NEC-8201a which uses the exact same RS-232 circuit design and has the same problem.
Timeline:
00:00 – Welcome
02:46 – Problem demonstration and source
10:48 – Fixing the problem
16:32 – Testing our fix
18:17 – It works for the NEC PC-8201a too!
18:50 – Wrap up. Thanks!
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TRS-80 Portable Tech Bulletins: soigeneris.com/document/vintcom/Tandy_Technical_Bulletins.zip
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Hotplate: amzn.to/3rxOtLU
Spudger set I use: amzn.to/3z19pM7
Heat mats: amzn.to/3boKDwl
Amazon Associated Links Chemicals:
303 Aerospace Protectant: amzn.to/3BxRa5Y
CiaKot: amzn.to/3CvVKiY
Overcaot Pen: amzn.to/3s439Bt
Novus Plastic Polish: amzn.to/2VwtFaV
Electronics / PCB cleaner: amzn.to/3ORx62D
Citric Acid: amzn.to/3krkgdt
Amazon Associated Links Parts / Supplies:
Foam sheet, 1mm: amzn.to/37CfTtt
Uxcell shrink wrap: amzn.to/3boKJEd
NiMh tabbed Sun-C: amzn.to/3nHCbxL
NiMh tabbed AA: amzn.to/3OMjBkW
uxCell strain reliefs: amzn.to/3nJ5AaP
3M Double sided tape: amzn.to/3rYCxBX
Noctua 80mm NF-A8 FLX fan: amzn.to/3ASVhsJ
Credits
Chiptune Thing No. 3 "Victory" by Steven O’Brien soundcloud.com/stevenobrien
Creative Commons — Attribution 3.0 Unported— CC BY 3.0
http://creativecommons.org/licenses/b...
Music provided by Music for Creators youtu.be/ujIMRIJ1JG8
In this video we take a look at a ‘patch’ for the ubiquitous Alps plotter mechanism. The most common issue with these lovely plotters is cracked stepper pinion gears, we fixed that previously by installing new, custom made, brass gears. The second most common problem is a cracked hub on the paper feed ‘anti-backlash’ gear. Join us as we find a way to patch this cracked hub up so we can plot again.
Timeline:
00:00 – Welcome
01:15 – Problem description, patch demo
07:50 – Fixing a real printer
14:18 – Testing, and fixing the fix, retesting
18:15 – Wrap up, so you have broken plotter?
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Links
Video on TRS-80 CGP-115 and MCP-40: youtu.be/DD29dklcD9E
New brass pinion gears: soigeneris.com/alps-printer-plotter-mechanism-pinion-gears
Gear installation video: youtu.be/mZAMPPSQpqo
Amazon Associated Links Tools:
Fiberglass pen: amzn.to/3pWRzIk
Fiberglass pen refills: amzn.to/3RgqGdQ
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Battery Spot Welder: amzn.to/3QMaG3T
Hotplate: amzn.to/3rxOtLU
Spudger set I use: amzn.to/3z19pM7
Heat mats: amzn.to/3boKDwl
Amazon Associated Links Chemicals:
303 Aerospace Protectant: amzn.to/3BxRa5Y
CiaKot: amzn.to/3CvVKiY
Overcaot Pen: amzn.to/3s439Bt
Novus Plastic Polish: amzn.to/2VwtFaV
Electronics / PCB cleaner: amzn.to/3ORx62D
Citric Acid: amzn.to/3krkgdt
Amazon Associated Links Parts / Supplies:
Foam sheet, 1mm: amzn.to/37CfTtt
Uxcell shrink wrap: amzn.to/3boKJEd
NiMh tabbed Sun-C: amzn.to/3nHCbxL
NiMh tabbed AA: amzn.to/3OMjBkW
uxCell strain reliefs: amzn.to/3nJ5AaP
3M Double sided tape: amzn.to/3rYCxBX
Noctua 80mm NF-A8 FLX fan: amzn.to/3ASVhsJ
Credits
Chiptune Thing No. 3 "Victory" by Steven O’Brien soundcloud.com/stevenobrien
Creative Commons — Attribution 3.0 Unported— CC BY 3.0
http://creativecommons.org/licenses/b...
Music provided by Music for Creators youtu.be/ujIMRIJ1JG8
In this video we take a look at a pair of vintage printers/plotters from two different manufacturers. They both use the infamous Alps mechanism. We’ll have a peek inside to see how much they are alike and how they differ. We’ll then try to fix what needs fixing and give them both a whirl. Will we get them both running? Join us and find out.
00:00 – Welcome
01:10 – Overview of plotters
03:11 – A look at the mechanisms
13:58 – Replacing pinion gears
22:09 – Putting it back together
23:46 – Testing
35:25 – Wrap up
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Links
New brass pinion gears: soigeneris.com/alps-printer-plotter-mechanism-pinion-gears
Gear installation video: youtu.be/mZAMPPSQpqo
Amazon Associated Links Tools:
Fiberglass pen: amzn.to/3pWRzIk
Fiberglass pen refills: amzn.to/3RgqGdQ
OWDEN Hollow punch set: amzn.to/3PXzTXW
Battery Spot Welder: amzn.to/3QMaG3T
Hotplate: amzn.to/3rxOtLU
Spudger set I use: amzn.to/3z19pM7
Heat mats: amzn.to/3boKDwl
Amazon Associated Links Chemicals:
303 Aerospace Protectant: amzn.to/3BxRa5Y
CiaKot: amzn.to/3CvVKiY
Overcaot Pen: amzn.to/3s439Bt
Novus Plastic Polish: amzn.to/2VwtFaV
Electronics / PCB cleaner: amzn.to/3ORx62D
Citric Acid: amzn.to/3krkgdt
Amazon Associated Links Parts / Supplies:
Foam sheet, 1mm: amzn.to/37CfTtt
Uxcell shrink wrap: amzn.to/3boKJEd
NiMh tabbed Sun-C: amzn.to/3nHCbxL
NiMh tabbed AA: amzn.to/3OMjBkW
uxCell strain reliefs: amzn.to/3nJ5AaP
3M Double sided tape: amzn.to/3rYCxBX
Noctua 80mm NF-A8 FLX fan: amzn.to/3ASVhsJ
Credits
Chiptune Thing No. 3 "Victory" by Steven O’Brien soundcloud.com/stevenobrien
Creative Commons — Attribution 3.0 Unported— CC BY 3.0
http://creativecommons.org/licenses/b...
Music provided by Music for Creators youtu.be/ujIMRIJ1JG8
After spending the last 3 weeks finishing up old projects that have been accumulating on my workbench, I am down to two projects left on the bench. In this video we will tackle one of them, a NEC PC-8201A that was started about two years ago. I don’t remember where I left off, why I did not finish it at the time or even if I still have all the parts. Join us and see if the PC-8201A can be saved.
As a bonus we will look inside a very odd option ROM that came in this PC-8201A. It is not what it seems on the outside…
Timeline:
00:00 – Welcome
02:02 – Evaluation, sorting parts, power on test
11:26 – Refurbish LCD/Keyboard, replacing ‘death foam’
22:51 – Replacing memory battery, short circuit prevention
31:08 – Power supply recap
33:02 – Reassembly
39:21 – Testing, configuring batter cassettes
41:53 – Bonus, the faux EPROM
44:46 – Wrap up, thanks!
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Links
PC-8201A ‘Death Foam’ video: youtu.be/yWuko4ysxVI
PC-8201A information site: web8201.net
PC-8201A NiCad configuration: web8201.net/NiCadMod.asp
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Amazon Associated Links Parts / Supplies:
Foam sheet, 1mm: amzn.to/37CfTtt
Uxcell shrink wrap: amzn.to/3boKJEd
NiMh tabbed Sun-C: amzn.to/3nHCbxL
NiMh tabbed AA: amzn.to/3OMjBkW
uxCell strain reliefs: amzn.to/3nJ5AaP
3M Double sided tape: amzn.to/3rYCxBX
Noctua 80mm NF-A8 FLX fan: amzn.to/3ASVhsJ
Credits
Chiptune Thing No. 3 "Victory" by Steven O’Brien soundcloud.com/stevenobrien
Creative Commons — Attribution 3.0 Unported— CC BY 3.0
http://creativecommons.org/licenses/b...
Music provided by Music for Creators youtu.be/ujIMRIJ1JG8
In this video we take a look at a TRS-80 26-3612 RS-232 interface for the PC-2. It appeared to be a NIB find but does not work. When trying to power on it has excessive current draw. The fix was accidental and surprising leading to discovering a very odd factory mod. I still have no idea what this factory mod was for.
Timeline:
00:00 – Welcome
01:37 – Problem description and demonstration
06:00 – Research and DC-DC convertor secondary testing
08:11 – Testing primary side of DC-DC convertor. It magically works!
12:37 – Testing operation, loading a program from PC.
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Links
Amazon Associated Links Tools:
Fiberglass pen: amzn.to/3pWRzIk
Fiberglass pen refills: amzn.to/3RgqGdQ
OWDEN Hollow punch set: amzn.to/3PXzTXW
Battery Spot Welder: amzn.to/3QMaG3T
Hotplate: amzn.to/3rxOtLU
Spudger set I use: amzn.to/3z19pM7
Heat mats: amzn.to/3boKDwl
Amazon Associated Links Chemicals:
303 Aerospace Protectant: amzn.to/3BxRa5Y
CiaKot: amzn.to/3CvVKiY
Overcaot Pen: amzn.to/3s439Bt
Novus Plastic Polish: amzn.to/2VwtFaV
Electronics / PCB cleaner: amzn.to/3ORx62D
Citric Acid: amzn.to/3krkgdt
Amazon Associated Links Parts / Supplies:
Foam sheet, 1mm: amzn.to/37CfTtt
Uxcell shrink wrap: amzn.to/3boKJEd
NiMh tabbed Sun-C: amzn.to/3nHCbxL
NiMh tabbed AA: amzn.to/3OMjBkW
uxCell strain reliefs: amzn.to/3nJ5AaP
3M Double sided tape: amzn.to/3rYCxBX
Noctua 80mm NF-A8 FLX fan: amzn.to/3ASVhsJ
Credits
Chiptune Thing No. 3 "Victory" by Steven O’Brien soundcloud.com/stevenobrien
Creative Commons — Attribution 3.0 Unported— CC BY 3.0
http://creativecommons.org/licenses/b...
Music provided by Music for Creators youtu.be/ujIMRIJ1JG8
In this video we take a look at a Model 200 with an interesting problem. It turns itself on and you can’t turn it off. Once off you can’t turn it back on again. This was an interesting problem, and I get thrown off track a bit at first. We get there in the end with a very simple solution.
Timeline:
00:00 – Welcome
01:21 – Problem demo and research
03:27 – Teardown, temporary power switch and false hope
09:42 – New switch, same problem!
16:53 – Wrap up. Thanks!
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Links
Model 200 videos: youtube.com/watch?v=OJcvws9j3Io
Model 200 videos: youtube.com/watch?v=1adlQo3UI90
Amazon Associated Links Tools:
Fiberglass pen: amzn.to/3pWRzIk
Fiberglass pen refills: amzn.to/3RgqGdQ
OWDEN Hollow punch set: amzn.to/3PXzTXW
Battery Spot Welder: amzn.to/3QMaG3T
Hotplate: amzn.to/3rxOtLU
Spudger set I use: amzn.to/3z19pM7
Heat mats: amzn.to/3boKDwl
Amazon Associated Links Chemicals:
303 Aerospace Protectant: amzn.to/3BxRa5Y
CiaKot: amzn.to/3CvVKiY
Overcaot Pen: amzn.to/3s439Bt
Novus Plastic Polish: amzn.to/2VwtFaV
Electronics / PCB cleaner: amzn.to/3ORx62D
Citric Acid: amzn.to/3krkgdt
Amazon Associated Links Parts / Supplies:
Foam sheet, 1mm: amzn.to/37CfTtt
Uxcell shrink wrap: amzn.to/3boKJEd
NiMh tabbed Sun-C: amzn.to/3nHCbxL
NiMh tabbed AA: amzn.to/3OMjBkW
uxCell strain reliefs: amzn.to/3nJ5AaP
3M Double sided tape: amzn.to/3rYCxBX
Noctua 80mm NF-A8 FLX fan: amzn.to/3ASVhsJ
Credits
Chiptune Thing No. 3 "Victory" by Steven O’Brien soundcloud.com/stevenobrien
Creative Commons — Attribution 3.0 Unported— CC BY 3.0
http://creativecommons.org/licenses/b...
Music provided by Music for Creators youtu.be/ujIMRIJ1JG8