probnots techThis video doesn't talk about what you should buy, it just talks about what there is.
0:00 Introduction 1:29 2 Video Heads 4:17 4 Video Heads 5:56 3 Video Heads 7:33 5 Video Heads 8:41 4DA Video Heads (Dual Azimuth) 10:17 Hi-Fi Heads 12:11 6 Video Heads 13:42 Flying Erase Head 17:16 How to remove an auto head-cleaner 17:26 Credits
VCR Basics - Video Head Configurationsprobnots tech2021-04-27 | This video doesn't talk about what you should buy, it just talks about what there is.
0:00 Introduction 1:29 2 Video Heads 4:17 4 Video Heads 5:56 3 Video Heads 7:33 5 Video Heads 8:41 4DA Video Heads (Dual Azimuth) 10:17 Hi-Fi Heads 12:11 6 Video Heads 13:42 Flying Erase Head 17:16 How to remove an auto head-cleaner 17:26 CreditsSamsung VT-1270C VCR (from 1992) power supply fixprobnots tech2024-09-28 | Another one.
0:00 Intro / Initial Look 1:14 Power Supply 7:01 Diodes? 8:05 Test tape - SP 10:16 Test tape - SLP 10:56 Diodes! 14:14 Underside, mode switch and head cleaner 16:37 Functions 20:03 Test tape - LP 20:53 Test tape - S-VHS? 22:13 Test tape - PAL..? 23:22 ConclusionPanasonic PV-4841 VCR (from 1988) repair attemptprobnots tech2024-09-23 | Oh boy, this is a long one.Hitachi 19 TV from 1980 (Model MT-220)probnots tech2024-09-16 | Television. With knobs.Some neat Sony CD Players from 1984probnots tech2024-08-31 | Models D-5A and CDP-200.
0:00 Intro 2:44 Sony CDP-200 (A Look Inside) 10:43 Rambling about CDs 14:16 Sony D-5A Dock (bodge job) 21:44 OutroGrundig Multi-Standard VCR (Model GV 460 VPT)probnots tech2024-08-24 | Sources have told me this was made by Thomson Consumer, and I haven't bothered to confirm this. Manufactured May, 1994.Mitsubishi VCR repair (HS-337UR from the late 80s)probnots tech2024-08-16 | In this video I make an absolute mess of the troubleshooting process to accomplish a fairly simple repair. Enjoy!
** Apologies for the egregious editing error. I'm sure it will happen again.A look at some real dirty CRT TVsprobnots tech2024-08-09 | A rural garage sale find, probably stored in a barn. Are they any good?JVC HR-7650U VCR - quick repairprobnots tech2024-07-20 | A second video about the JVC HR-7650U where I replacement the broken VFD.
0:00 Intro 1:11 Unboxing 3:05 Testing & Differences 8:14 Solder Time 9:55 Success! 10:33 Demonstration 13:58 OutroNew battery for Sony CCD-V110 camcorder (from 1986)probnots tech2024-07-12 | In this episode I show a very kludged-together battery pack for a very old Video8 camcorder.
Apologies for the quiet audio, this is my first video after switching to Davinci Resolve and I'm still getting used to it.
0:00 Overview of the camcorder 2:52 The battery problem 3:27 The battery solution 8:56 Quick demo 10:58 Camera footage 15:54 Final thoughts 18:09 Honk.Cheap HDMI Modulator - ADDENDUMprobnots tech2024-04-28 | Thanks to all the comments in the previous video clarifying where I went wrong on the first issue.Cheap HDMI to RF modulator (also composite mod)probnots tech2024-04-27 | *** There's an addendum video, where I address where I went wrong setting the resolution on my laptop: youtube.com/watch?v=N5eR98B3Zx0
I look forward to finding out that I should have added a coupling capacitor to keep this from breaking things. Cheers!
0:00 Aspect ratio rant 5:40 Testing the converter 10:56 Composite output mod 20:54 Testing out the mod 23:35 Conclusion 25:39 Not a transmitter! 26:25 PicturesSears Portable Beta VCR (from 1981)probnots tech2024-04-20 | Another really long video, this time about a Beta VCR. Made by Sanyo for Sears and sold sometime around 1981. Complete with the wired remote!
The VCR portion is model 30133 D (chassis 539-40650). The tuner/timer portion is model 30133 T (chassis 539-40660).
0:00 Intro 1:19 Disassembly 5:20 Tape Removal & Resurrection 21:04 I get confused 27:45 Tuner 32:01 Overview 39:00 Recording Samples 40:07 Playback Samples 41:36 Conclusion & Sears DiscussionOdd 1970s clock radio (Lloyds JJ-8398)probnots tech2024-04-13 | This is a fairly unusual design of digital clock radio from the 1970s. Instead of the expensive electronic digital clock (with LEDs of a VFD),flip clock or even Lumitime... this is a "roll clock" with a neat looking font.
0:00 Introduction 0:45 Problems & Repairs 8:50 Overview & DemonstrationMitsubishi VHS VCR (Model HS-330UR)probnots tech2024-04-06 | The only thing missing was HiFi. In Canada this model was also sold under the Electrohome brand as model HVR-A01.
0:00 Intro 0:20 My history with this machine (ramble) 2:39 Overview & Demonstration 16:46 The Insides 28:05 Test Recording prep 29:06 Test Recordings 32:16 Service controls 33:33 Spaghett 34:50 Rear connections 36:53 EndThe Panasonic TR-555 (quick fix and long overview)probnots tech2024-02-17 | Model TR-555C.Channel Master 6518 and other radiosprobnots tech2024-01-29 | Just a look at some transistor radios.
* Channel Master 6518 (Sanyo AFT-1A) * Sanyo 8C-028S (Channel Master 6515) * Sanyo/Artonc 6C-8 (Channel Master 6501) * Auritone unknown model * Silver 6TR-100 * Sanyo RP-1250 (two of them!)Analysis of some Panasonic VCRsprobnots tech2023-09-04 | Tonight's episode: "probnot personally peruses a pile of programmable panasonics" OR "The K stands for Kanada!"
0:00 Intro 3:34 VCR #1 - PV-8200-K 8:18 VCR #2 - PV-4652-K 16:00 VCR #3 - PV-V4630-K 26:11 Bonus VCR - PV-2201-K 34:53 OutroJVCs dual format VCR (JVC HR-FC100U)probnots tech2023-07-19 | Fancy drawer loading JVC VCR from the early 90s (probably 1991ish). The usual JVC quality.
0:00 Teaser 0:38 Repair 7:10 Overview & VHS 31:29 VHS-C 38:35 Playback of recording 45:10 GoodbyeLooking at four VCRs - do they work?probnots tech2023-07-08 | A stack of newer (20ish year old) VCRs.
0:00 Stupid 0:40 Sylvania 6220CVA (2 Head, Mono) 13:22 Electrohome EH8013 (4 Head, HiFi) 20:44 Citizen JVHS3987D (2 Head, Mono) 23:19 Toshiba W522CG (4 Head, HiFi)Old-school analog cable TV setup - Tour & Updateprobnots tech2023-06-15 | A quick update on the madness.
0:00 Introduction 1:49 The Channels on an old TV 5:13 A spreadsheet! 9:02 The Hardware 17:49 The Channels on a new(er) TV
Weather Channel code: github.com/probnot/wpg-weatherchanLate 80s RCA VCR (Model VR285 from 1988)probnots tech2023-04-23 | Rare doesn't always mean good. This VCR was manufactured in 1988 and sold in 1988/1989. The mechanism is Samsung. From the beginning of the Thomson Consumer era.
0:00 Some explanation 1:44 Problem #1 - Power Supply 2:52 Problem #2 - Belts 3:52 Problem #3 - Pinch Roller & my oopsie 6:55 Demonstration 8:40 Problem #4 - Full Logic Fail 11:22 Samsung-Hitachi Connection? 12:47 On-screen programming 15:23 Tuner 19:58 The Repair-y bits 27:16 Playback Examples 27:43 Test Recordings 29:15 Linear StereoPlayback Comparison - VHS / S-VHS / S-VHS ETprobnots tech2023-04-05 | All recordings are in SP speed, recorded and played back on a JVC-SHR7600U VCR with TBC turned on. S-VHS recording on a Sony MQST-120 tape, S-VHS ET and VHS recordings on a Fuji HQ 120 tape. Digitized using S-Video to an HDMI upscaler.
A note on the vertical noise with the ET recording - this seems to be amplified with the upscaler. When directly connected to a CRT or LCD TV, it's less pronounced, but still present. This would probably improve with the use of a higher quality VHS tape, but appears to be a common complaint from what I've seen on old forum posts.
Expected Horizontal (luminance) Resolution: VHS - 240 Lines SVHS - 400 LinesJVC HR-S7600U (Fancy & Flawed VCR from 2000)probnots tech2023-04-02 | This VCR has many cool features. Too bad it's from an era of extreme cost-cutting.
Also I called many things by the wrong name (jog vs shuttle wheel for example). I do that a lot - feel free to point it out in the comments :)
0:00 Introduction 3:21 Demonstration 5:01 Dynamic Drum System 8:19 Look Inside 11:31 S-VHS Horizontal Resolution Test 16:14 A skippable rant about capture devices 21:49 More Dynamic Drum System 23:31 Catastrophe 24:07 Detailed look at the mechanism & Head Drum 26:44 Thoughts on DDS 28:26 No Brakes (no brakes) 32:12 Conclusion 33:01 Example CapturesSony SL-360HF Betamax VCR (repair attempt)probnots tech2023-03-25 | Oh no, I do not know what I'm doing.
Around 3:07 the audio is a trip if you're using headphones - no idea what's going on there.
Website talking about the A/V in connector: https://vintage-technics.ru/Eng-Sony_FD-40A.htmJVC HR-7650U VCR (front loader with linear stereo)probnots tech2023-03-09 | All the bells and whistles in 1982. Apologies for the furnace noise, February is a cold month.
====REPAIR==== 0:00 Initial Look 2:58 Down the wrong path 5:55 More testing 9:07 Sad news for VFD fans 10:54 Why did I buy this? 14:04 New Belts! 15:59 Mechanism & Front Load 18:27 EP woes 21:54 Capstan makeover 26:35 It was just vapour lock 28:05 Final adjustments ====DEMONSTRATION==== 30:42 Overview & Controls 38:26 EIAJ Input & CKC021 Camera 40:14 Still some issues 41:51 Playback 43:02 Tuner 45:51 The rear connections 47:07 Conclusion14 Baycrest TV (from 1984)probnots tech2023-01-21 | Model HB1423. Sold at "The Bay", now called Hudson's Bay - a Canadian department store.
I also test out an old vacuum tube pattern generator - an RCA WR-64B.
3D model for the gear, for the 1 in a million person who has this same TV and is also missing the fine tuning: thingiverse.com/thing:5805562Sansui Boombox (model CP-5 from 1983)probnots tech2022-12-25 | Some half-assed repairs of a Sansui CP-5 boombox I picked up.
Index: 0:00 Overview 8:39 Tuner 14:06 Tuning around the FM dial 17:28 Cassette Deck 23:11 ConclusionToshiba Beta VCR V-S443C Pt.2 - noisy head drum fixprobnots tech2022-12-13 | Part 1: youtube.com/watch?v=mc7rAuag2IE
In this follow-up I try oiling the video head drum bearings, which involves taking the entire head drum assembly apart. The question now is - can I reassemble it to be working again?Toshiba Beta VCR (model V-S443C from 1984)probnots tech2022-12-11 | This model came out a year after the V-S36C and added some features (like VU meters) while eliminating other features (like direct access tuner, variable speed special effects, etc). It's also much more stylish looking. It was also sold in grey/silver.
Index: 0:00 Introduction 1:36 Initial test / dirty switches 13:52 FF/Rew Idler 16:10 Head drum noise & other issues 19:57 Another problem! 23:06 Playback samples 26:21 Conclusion (in glorious SD)Winnipeg Weather Channel (on a raspberry pi) V2probnots tech2022-12-04 | I finally got around to making this work again. It's still buggy, but at least it's running again! It's currently running on a Raspberry Pi 3B.
GitHub page: github.com/probnot/wpg-weatherchan1970s RCA 9 B&W TV (Model CX 095E)probnots tech2022-12-02 | Another vintage RCA TV.Thrift Store VHSprobnots tech2022-11-20 | Shorts are dumb. Here's a short.RCA 12 B&W TV (Model CJR 121W from 1983)probnots tech2022-11-19 | A look at an inexpensive old TV that just has a lovely style to it.
0:00 Introduction 1:52 Initial test 6:14 Take it apart 7:37 Test with a clean tuner 10:10 More inside 13:07 Some rambling 15:30 RCA TV Model Numbers 18:58 FinSony SL-5800 Betamax VCR (from 1980)probnots tech2022-11-15 | Beta time! Complete with the box*, manual and remote. Most likely stored in a musty basement.
*You may notice this alleged box it came in is missing from the video. I can assure you it is alive and well, but due to extreme mustiness is not allowed in the house.
0:00 How it started 8:06 Overview (How it's going) 8:55 Australian CL-7 Belt kit! 13:22 More Overview 15:40 What is "Brightness Balance"? (flicker problems) 23:54 Playback Demonstration 26:50 Front Controls 33:32 Rear Connections 35:41 More "Brightness Balance" 39:01 Recording 46:07 Conclusion 47:21 User Manual 50:13 GoodbyePanasonic RX-CW55L - Extremely wide boomboxprobnots tech2022-11-05 | This video was recorded in 2019. I don't know why I sound so grumpy.Hitachi 12 Black & White TV (from 1981)probnots tech2022-10-30 | Model M1211. This TV has a somewhat unusual tuner design that makes unique compared to the other 12" black and white sets of the 70's and 80's.How to hook up an old TVprobnots tech2022-10-21 | I ramble on about using old TVs, technologies and go on whatever tangents I forgot to edit out.
Some very good educational videos I recommend watching:
0:00 Intro 0:29 Twin Lead / 300 ohm 2:23 Coax / 75 Ohm 2:55 Matching Transformer / Balon 3:27 Channel Tuning - VHF vs UHF 5:37 Connecting a VCR Pt.1 7:32 Fine Tuning 8:44 Automatic Fine Tuning 9:08 TVs with Twin Lead and Coax 10:27 Cable TV vs Antenna/Normal Channels 11:32 Connecting a VCR Pt.2 12:02 Coax is still around! 12:30 Game Switch Adapters 14:06 Pushbutton / Varactor Diode Tuners (Slideshow) 15:44 Composite Video & RF Modulators 19:14 S-Video 20:18 Component Video 21:19 HDMI 24:12 Digital (Over-the-air) TV Tuner Box 26:55 Portable TVs / 3.5mm Antenna Connector 28:55 OutroCasio TV-21 Pocket TV (from 1985) + other handheld TVsprobnots tech2022-10-08 | Tiny TV from the 80s that offered an image that was almost, but not quite, entirely unlike television.
0:00 Introducing the Casio TV-21 5:53 Sony FD-20 8:02 Comparison - TV-21 vs FD-20 9:23 Sony FD-20 Battery Life 12:03 Casio TV-21 Battery Life 12:55 Comparison - TV-470 vs P422 14:55 Casio TV-470 15:40 Casio TV-470 Battery Life 16:19 Citizen P422 17:28 Citizen P422 Battery Life 17:55 Citizen P422 A/V Input 18:36 Sony FD-20 Video Input 19:29 Citizen P422 External Antenna 21:08 Casio TV-880 22:49 Casio TV-880 A/V Input Fix! 25:25 Casio TV-880 Battery Life 25:53 Sony FDL-370 26:33 Sony FDL-370 Battery Life 27:39 Thanks for watching!Emerson VCR (Model VCR765 from 1990-ish)probnots tech2022-10-01 | This Emerson branded, Orion-made VCR is from around 1990/1991. There was an updated version released the next year that was identical except for the additional of digital tracking control.Tektronix 465B Oscilloscope - Fixed!probnots tech2022-08-06 | It only took me 2 years and 3 months to upload a follow-up. Not too bad, eh?
0:00 Overview Pt.I 7:07 Automatic Head Cleaner 7:22 Test Recording 11:02 Sample Recording at 1/5 EP Speed 11:49 Discussing the Quality 12:56 Overview Pt.II 26:04 Final Thoughts 22:46 Test Recordings & Source Comparison 24:43 Playback on a Normal VCR 25:43 OutroWhats wrong with this VCR? (JVC HR-J3009UM)probnots tech2022-06-11 | It's broken. But in what way?Grundig Concertboy 4000probnots tech2022-06-04 | Late 60s / early 70s all-transistor FM Stereo radio.
0:00 Introduction & Overview 7:19 AM Tuning (in the basement) 8:49 Shortwave Tuning (in the basement) 11:28 The Back 13:51 Inside 19:44 Taking it Apart 20:42 The Tuner Light Debacle 24:04 All Cleaned Up 25:05 FM Tuning (outside) 26:48 SW1 Tuning (outside) 27:47 SW2 Tuning (outside) 32:35 AM Tuning (outside) 33:37 LW Tuning (outside)Toshibas first Hi-Fi Beta VCR (V-S36C from 1983)probnots tech2022-05-07 | Hefty machine with a few neat features.
0:00 Introduction & Demonstration 14:01 Let's take a look under the hood 18:13 BIII Test & some rambling 25:15 Test Recording 26:18 Comparison w/ Sony SL-2710 26:56 A look underneath 29:17 A gander at the back end 30:18 Manuel (Part 1) 34:39 Variable Speed Picture Search 36:53 Manuel (Part 2) 39:47 "Auto Find" Feature (Indexing) 42:23 60Hz 43:56 OutroFisher FVH-6400 VCR (with linear stereo)probnots tech2022-04-23 | From around 1989. Linear stereo (with Dolby NR), 2 video heads, and a mandatory remote control.1971 Philips Cassette Recorder (Model 1530)probnots tech2022-04-15 | A cheerful little tape recorder from the inventor of the compact cassette.
0:00 First Look 5:29 Repair 13:39 DemonstrationZenith VR-3010 Follow-up (LP Playback & Tracking Fix)probnots tech2022-04-12 | I always leave issues unresolved in videos and fix them later off-camera, so here's some closure for a change of pace.Zenith VR-3010 VCR (from 1984)probnots tech2022-04-09 | JVC made VCRs really did have a nice picture.Fisher top-loading VCR from early 1980sprobnots tech2022-04-04 | Fisher FVH-520, sold around 1981-1983. A classic looking 1980s top loader that seems to have a bad reputation.
0:00 Commercial 0:30 Part I: Testing & Diagnosis 29:58 Part II: The Bad Transistor 35:10 Part II: The Repairs 47:32 Part IV: All Fixed Up 1:04:16 Test Recordings 1:05:07 Outro