Sparky Projects
CRT monitor tour and fault finding
updated
Something that @LOOKMUMNOCOMPUTER might be interested in
Link to download page https://sparkys.tech/index.php?page=matrix_sequencer
Tech site: https://sparkys.tech
Website: http://sparky-projects.co.uk
Forum: http://sparky-projects.proboards.com
Discord: discord.gg/yPHpW2j
You'll find the tech site in the links below, and from there you can follow to the projects
The 'decatron' timer video with 6 modules youtube.com/watch?v=66FVVqb6LI8
Website: http://sparky-projects.co.uk
Tech Site: https://sparkys.tech
Forum: http://sparky-projects.proboards.com
Discord: discord.gg/yPHpW2j
The previous packs were YB1203000 USB (3000mAh) and YB1208300 (8300mAh)
I didn't go into detail on the chips, but check out the previous battery pack video here
youtube.com/watch?v=9uxCw6ccc34
The one thing i admire most in a company is their support, i wanted to change a connector in this pack, contacted the company, they responded within 15 minutes and sent out a few connectors.
Website: http://sparky-projects.co.uk
Forum: http://sparky-projects.proboards.com
Discord: discord.gg/yPHpW2j
Forum: http://sparky-projects.proboards.com
Discord: discord.gg/yPHpW2j
Here's the link to the 8300mAh pack, this should give you a start to find other sizes
smile.amazon.co.uk/gp/product/B06Y5G3C8Z
To make these packs more useful. i am adding belt clips, if you decide to do the same, be careful when fixing them to avoid contact with batteries or circuit boards
Website: http://sparky-projects.co.uk
Forum: http://sparky-projects.proboards.com
Discord: discord.gg/yPHpW2j
"Ozonizer Ceramic Plate, Ozonizer Air Purifier,Portable 7g/h 110V/220V Ozone Generator with Double Sheet Ceramic Plate Air Sterilize "
@bigclivedotcom has reviewed similar items with ceramic plates, but this has a double plate.
I ddn't dig any further, but it looks like it's an astable multivibrator using just the 2 transistors on the heaatsink.
Website: http://sparky-projects.co.uk
Forum: http://sparky-projects.proboards.com
Discord: discord.gg/yPHpW2j
Forum: http://sparky-projects.proboards.com
Discord: discord.gg/yPHpW2j
This started of as a project to add modern power supplies to an old power supply, but things took a turn
The new power supply unts are listed as 'Rui Deng' in searches, the ones i have are DPS5005 USB
50V input max, 5 amp with USB
Transformers are 2x24v 160VA which is 6.6 amps full load with windings paralleled, bridge rectifiers are 10A.
Apologies for the quick ending, i knew my mic battery was low, but it turned out to be my second camera which should have been a close up of the units while i was showing the interface software (PIP), unfortunately that's lost.
Techmoan's Video: youtube.com/watch?v=tkkx2h-rIEI
You'll find the capacitor at 18:57
Bonusnuges channel youtube.com/user/bonusnudges
He mostly had Diesel engines, but a few tape recorders too
Website: http://sparky-projects.co.uk
Forum: http://sparky-projects.proboards.com
Discord: discord.gg/yPHpW2j
Look Mum No Computer: youtube.com/channel/UCafxR2HWJRmMfSdyZXvZMTw
Museum Of Everything Rlse: youtube.com/user/sammybartl
Website: http://sparky-projects.co.uk
Forum: http://sparky-projects.proboards.com
Discord: discord.gg/yPHpW2j
I'm also thinking this may work on a telescope, would be good if anyone with a telescope could test and let me know
Website: http://sparky-projects.co.uk
Forum: http://sparky-projects.proboards.com
Discord: discord.gg/yPHpW2j
I liked the storage tubes so much i wanted to drill a further 34 holes for diodes and transistors in another drawer, so this time i'll show you how i did it.
Website: http://sparky-projects.co.uk
Forum: http://sparky-projects.proboards.com
Discord: discord.gg/yPHpW2j
Handles: smile.amazon.co.uk/gp/product/B01LWKUF5K
Website: http://sparky-projects.co.uk
Forum: http://sparky-projects.proboards.com
Discord: discord.gg/yPHpW2j
But i thought i would release this now so that anyone who wants a decatron style display can get their own made from the gerber file, this took a bit of time to lay out, but i saved you the trouble, it's a modular system that can be as many digits as you want
Link to nixe counter youtube.com/watch?v=qS2osRTR1W4
Link to construction video and gerber file youtube.com/watch?v=DIx6vNrS3sQ
Website: http://sparky-projects.co.uk
Forum: http://sparky-projects.proboards.com
Discord: discord.gg/m7BxFH
Please make up your own mind if you think this is a good torch.
I thought about exploring the led module, but i didn't want to wreck a nice torch, i'll leave that to bigClive, unless odepro want to send me the electronics module with the led, and i can do a follow up.
Link to Odepro Amazon page: amazon.co.uk/dp/B07VRMTWYM
Link to Cree: cree.com/led-components/products/xlamp-leds-discrete/xlamp-xm-l2
And for those wondering about Dyson's T shirt comment :http://www.odepro.com/es/2018-09-21_52726.html
Website: http://sparky-projects.co.uk
Forum: http://sparky-projects.proboards.com
Discord: discord.gg/m7BxFH
Logic tester video youtube.com/watch?v=K0t_pqAhABw
Website: http://sparky-projects.co.uk
Forum: http://sparky-projects.proboards.com
Discord: discord.gg/m7BxFH
The answer was to rebuild, this was helped largely due to an energy company rebate which meant i could complete the bottom row with all new monitors.
The monitor stands are from 1home via Amazon
amazon.co.uk/Monitor-Arms-Stands-1home-Accessories/s?rh=n%3A296770011%2Cp_4%3A1home
The monitors are AOC, i have 2 x 19" and 2 x 22"
amazon.co.uk/s?k=AOC&ref=nb_sb_noss
I have done a stepper motor video before, but this one concentrates on polarity
If you know these details, i will add them to these comments and pin your post.
It works out that the test resistor is calculated to give a MAVIMUM offset current of 42mA (240 v/5600 ohms), but it's sensitivity can be adjusted down close to the 30mA.
http://sparky-projects.co.uk
patreon.com/sparkyprojects
http://sparky-projects.co.uk
patreon.com/sparkyprojects
patreon.com/sparkyprojects
The last video showed a simple method of measuring low resistance, this is a bit more complex because the device needs to be calibrated if you decide to build your own,.
However, Wheatstone bridges are available in the usual places.
The circuit i used as an example was from this site
http://www.rfcafe.com/references/popular-electronics/inexpensive-wheatstone-bridge-popular-electronics-march-1972.htm
patreon.com/sparkyprojects
In the video i use 10mA, this can be any appropriate current, it's best to use multiples of 10 for easier calculation, and once you work out the relationship of readings, it's easy to just look at the voltmeter, move the decimal point, and get a direct reading.
Keep the current low, you don't want to burn out the trim resistor or the resistor under test.
I was using a 5V power supply, but it's not important (but should be stable), as long as the 'power' doesn't stress the resistors
Website: http://sparky-projects.co.uk
Patreon: patreon.com/sparkyprojects
An idea for adding a control panel and storage for a breadboard
My original box needed a lid to stop wires and components falling out, so i decided to make the lid functional.
http://sparky-projects.co.uk
patreon.com/sparkyprojects
I don't have the room for a permanent lathe, the one i had was too cumbersome to lift into place, and i don't have the room for a permanent place for it.
Router Jig youtube.com/watch?v=-IRNXHCBHOQ
http://sparky-projects.co.uk
patreon.com/sparkyprojects
No magic smoke for me..
Apologies for audio.
http://sparky-projects.co.uk
patreon.com/sparkyprojects
I have also changed the optical fibre in the coil from a 'toslink' 1mm plastic fibre, to a 2mm glass fibre, which works much better.
Getting Attention Video: youtube.com/watch?v=_Gbslc3FPgs
After a few iterations, i have finally constructed a compact Tesla coil there have been a few problems, the first design suffered from arcing, the second (in the box with a horizontal coil) also suffered from arcing from the secondary to the case, so the coil is now vertical.
The other aspect i wanted was to be able to point the grounding rod (jesus stick or chicken stick) at the breakout point and have the coil fire up with the use of a laser pointer in the end of the stick.
The idea is that the coil is disguised or hidden, only revealing what it is when fired up.
This coil will have an unusual topload that no one will suspect, and it will seem as if the arcs are coming from the stick.
I'm still having issues with the trigger circuit, but felt i needed to upload progress as it''s been a while since the last video.
This is just an indoor run, needs more tuning, but that can wait.
This coil uses my synchronous (double contact) rotary spark gap, and my 'powerwall' transformer and capacitor set up.
http://sparky-projects.co.uk
In this video i set about fixing the control console
The camera boom you can see in the video can be seen here
youtube.com/watch?v=ELOT-RM7GmY
Website with link to googlesite where the console diagram can be found
http://sparky-projects.co.uk
Thanks to Steve and Bruce for helping with the run
youtube.com/user/StevieLaner
youtube.com/user/bonusnudges
youtube.com/watch?v=JBycGTmxlg4
Music: Enter the Maze by Kevin MacLeod is licensed under a Creative Commons Attribution licence (creativecommons.org/licenses/by/4.0)
Source: http://incompetech.com/music/royalty-free/index.html?isrc=USUAN1100782
Artist: http://incompetech.com
http://sparky-projects.co.uk
Sparky and his Dad vid youtube.com/watch?v=zyUVUgSDRMs
This idea can be used for many things, possibly even props for cosplay etc
ti.com/lit/ds/symlink/lm3914.pdf
The original screen was a fixed frame.
Not sponsored by JLCPCB or EasyEDA
I've been playing with the above software wondering what Green Manalishi would look like on a PCB, EasyEDA takes a little getting used to, but i got there in the end, even setting the holes for stack mounting the main PCB and supply PCB.
Hopefully i will be getting these made soon, not sure if i will be selling them, i would need good support from viewers.
jlcpcb.com
easyeda.com
http://sparky-projects.co.uk/manalishi.html
http://sparky-projects.co.uk/manalishicircuits.html
One thing i didn't mention was the BNC connector on the base, this is connected to the oscillator output and is intended for connection of a frequency meter and scope, the latter is for setting the mark/space ratio at 1:1
Initial testing was on low voltage with a 1Hz external oscillator, and LED's connected across each mosfet, this is the result youtube.com/watch?v=07pkkwPdU1o
In the last video i described the control unit
youtube.com/watch?v=VNbHClgfpDI
This is the base unit that houses the driver electronics
I've been working on this for a while, the reason is that i am using a different approach that i haven't seen before, much of the circuit was experimental, everything looks promising, but haven't done a full run on it yet
You can find the basic diagram on my website, the modules are mostly off-the-shelf items from Amazon, basically a square wave oscillator, 2 amplifiers, the interrupter was from The Geek group (Now the National Science Institute) but not available atm.
http://sparky-projects.co.uk/manalishi.html
For the adaptor i use, do a search for "Quick Release Adapter for Manfrotto Tripod 200PL-14 QR ", there are many sellers on Amazon etc.
Just a quick excuse to show off a few variable resistors, and an insight into one of the things i used to do at school.
This meter doesn't need a rectifier to work on AC
Meter specs:
Ernest Turner Electrostatic meter
Model 32
But i think you get the idea.
http://sparky-projects.co.uk
sites.google.com/site/sparkyprojects/other-info/building-anomolie