There's nothing like a good rescue, especially of a CRT! If my field found C64 has taught me anything, it's that old electronic devices are more robust and resilient than we used to think!
You're not wrong. It's pretty amazing due to the build quality of these old electronics. I wonder who made the CRT that David bought. When were the last CRT's made Adrian???
Always glad to see restoration from people which have a good heart to save those good old electronics, I feel warm that people still spend time to rescue the electronics from the landfill, in my city they're sure going to trash bin and will tear down and scrape for copper, old computers and monitors much more memories from childhood.
Interestingly, with the Machintosh TV (the 90s one), they used a Sony Trinitron CRT. But, if you look at the others similar to it (the LC 500 series, for example), they don't mention that they use that. So, they could be using Samsung displays in these machines, actually. Not really too sure, though.
@@KorbenTheFireX Trinitron tubes are very easy to identify by their shape. They only curve side to side, while shadow masks curve both side to side and top to bottom. Also, if you look closely, Trinitrons have the 3 phosphorus cells side by side while shadow masks have them in a triangle. The problem with this method is that after 1997 when the original patents expired, there were many fake Trinitrons. Apple even has used many fakes in its products. Also, if its a later model and its flat, it could be either an FD Trinitron, a fake FD Trinitron, or a flat shadow mask. Either way, to get the best possible picture quality go for a Trinitron tube that's actually part of a Sony device: a TV, a generic monitor or a VAIO monitor. They may even have Digital Reality Creation or WEGA engine that way.
Analog electronics which is what comprised alot of electronics back then are far more durable then micro electronics. its why a big hard wired radio is stupidly tough and resistant but heavy, big, and expensive. But a micro electronics small and light radio brakes if in the wrong condition. And its simply because all the electronics are all hard wired because its all analog operated and not digital. It just boils into they don't build em like they used to because people would prefer convenient cheaper electronic over durability because its far cheaper to replace them then repair them unfortunately.
Quite an unfortunate twist in irony, electronics back then were durable as hell but treated with excessive caution, modern electronics are way more delicate but not always treated the best.
step one figure out what the diode was step two get a modern replacement to repair the monitor's by putting the new replacement in it to get it working again
Lets all take some time to recognize that this monitor was sitting outside in minus 8 degrees F temps during the Texas mega storm we went through back in February, yet it still powers on.
I have been watching this channel for about 5 years now, and there's still something so oddly hypnotizing about watching old computer hardware get cleaned, accompanied some upbeat music, and I can't explain why. I just like it.
SAME! It's not even something I'd be interesting in pursuing as a hobby. There's just something about these videos that get me sucked in. Same reason why I watch Voltar soldier old video game systems.
Your restoration videos are so cute. It's like seeing people rescue senior animals, giving them nice baths and finding new homes for them. I'm sure if AI ever try to take over the world, they'll leave you alone, lol. I've been binge watching all of them today. They make me really happy. Also, baking soda and water just does everything, man! Acid reflux? Mix some baking soda in water and drink it. No toothpaste for the night? Baking soda and water paste. Mosquito bites? Make it into a paste with water, and leave it on the bite for a while. And now it seems you can clean old computers with it! Seriously, it seems like it does everything.
I agree, Nice find. Do you get to keep it or are you fixing it for someone else to eventually buy it? If you have a way to do so you should cast a copy of the front knob panel so that you can make a replacement, maybe with a better hinge.
dude you left your monitor out in the rain for 20 years and somebody found it and took it to computer reset where the 8-bit guy took it home to clean and restore it
Good heavens, now THERE's a throwback reference! Was equally more surprised to see the site's still online today. Would've thought they faded into obscurity.
really made me sad and angry see these just thrown outside like that. we need more people like you in the world that still has a heart for vintage tech like this
@@RCAvhstape: I have been subscribed to his channel, but thank you. Don't forget that Tim himself encourages downloading of TSLOM episodes (sciencezero.4hv website).
they had many more of the monitors in various conditions in the inside of the warehouse, none of them worked unfortunately but i spotted a few rarities that were a shame to see in such a state
Wait, I missed some kind of context here. What was this building where people were just throwing computer parts in an alley? They weren't even putting them in the trash, what is going on?
An old computer warehouse and repair shop in Texas. LGR has a very good video on it and 8 bit guy guest stars. LGR got a repaired computer that belonged to Sierra On-Line but they never picked it back up. He pulled a development copy of one of their games off it.
It's like a place that only youtubers and their friends can go so they have a perpetual stream of rare things they want and money from "helping" to sell it.
That component behind T3 looks like it's a spark gap, which is designed to protect against overvoltage. Your high voltage regulation is defective, which is what is causing the HV to run away, blowing out the picture before arcing and then coming back. The pattern of dim, bright, arc, dim, bright, arc is a bit of a giveaway on that. If it was an actual diode then it must have been the damper diode since that's in the HV circuit.
some of the connection points on the underside of the board look if not corroded at least in need of clean I suspect voltage is jumping, leaking and at least another component gone u/s (or a trace). Buy at least 3x as many diodes as you might need, as one might blow before you have noted what is going on
It's the rectifier for one of the flyback secondaries, I believe. It's possible the rail it supplies is sampled and used to control the HV, but on the other hand the failing diode could just be causing the problems in other ways.
8:21 Now I feel stupid. Every time someone said or wrote "A-Hole" i assumed it was an insult. They just meant "Anode-Hole" and were talking about CRT monitors. Now I get it!
I hope someone writes a book about Computer Reset. Such a cool place that (seems to?) have fallen into the right hands. Hope more "Computer Resets" are out there waiting to be discovered and ro have their contents preserved.
@@JosephDavies Have you tried making one? There is a nonprofit company called free Geek and they basically take in used PCs and help refurbish them and donate them to needy people or sell them at very affordable prices to the public. They are also mostly volunteer run and even provide classes to teach people how computers work and how to fix them..
Back in the mid-eighties, my dad, bought a disk drive for the Apple /// computer from the fellow that ran Computer Reset at the Infomart computer flea market in Dallas, Texas. It was strange, because it came in a Disk II housing, but it was for the ///. Anyway, they had a BBS back then that I signed into once or twice, but when the video surfaced of the place, and especially the logo, my memories of them came back.
I thought you said, "If there were cat juice it would be sticky" and all I could think was, "Yeah and probably smell pretty horrible every time it got warm!"
The hot Texas climate surely has helped preserving this allowing the monitor to dry after it got wet. If it wouldent be able to dry it would rust away on the inside very quickly.
Yes. And what it was exposed to was only relatively clean rain water, dust and leaves. That's actually not even close to the conditions in a landfill, where it generally would be exposed to crushing force (proper landfills are usually compacted), juices from decomposing organic matter, a lot more salts and acids etc.
Just a minor heads up: for pots, you’re probably better off using deoxit fader lube instead of straight cleaner. That way you can add back whatever lube was lost in the cleaning process. Helpful tip I learned from servicing guitar amps.
That's a great idea. I ordered the D5 for motherboards, ports, and a few items along with the F5 FaderLube for the potentiometers since my Kawasho Color TV/Radio/Alarm Clock/Auto-outlet set is jumpy.
Hi David. Tv technician here. Almost in any tv when it has retrace lines and white screen means a problem on 180V video line, and sure enough that diode is shot. You can use any fast recovery diode in this case 1A and 600v or more, like FR107, UF4007, BY227, RGP10J... those are mostly used in many tv chassis. You also need to change the electrolytic cap on that 180v line because the diode turns more like a resistor. Must be really good electrolitycs but always is better to change all caps in PSU and vertical deflection circuit wich are the most prone to fail. A similar failure with retrace lines but with image (instead of a white one) is generated by a faulty ceramic cap filtering screen voltage. Greetings from Argentina.
@@syntaxusdogmata3333 Yeah but it still doesn't make it an okay practice to do. The viewer gains nothing but frustration and might just forget about this when the second part comes out. The only reason content creators do this is to increase revenue. There is 3 kinds of assholes out there when it comes to RUclips: 1. Those that use clickbait titles that has nothing to do with the video, 2. Those that drag out the length of a video to be 10 minutes or longer for more revenue, when the topic of said video could be explained in 3-5 minutes, 3. And finally the creators that stretch out their content in episodes to increase revenue that way.
7:30 It's probably already discharged since its been a couple days... NO!!! A CRT can remain charged for years and even one that has been discharged can spontaneously build an impressive charge under the right circumstances. ALWAYS discharge the tube before handling unless you really like pain.
@@keselekbakiak Well, David didn't handle that unknown computer system with the best of care to put it nicely. While I can see the argument of time and wanting to get done with something at some point, the idea of shorting the power plug in particular was obviously not a good one. Too bad that internet culture being what it is, means a huge outrage followed it instead of just giving him the resonance that handling something like that with better care in the future would be appropriate, in a respectful manner. In that regard I'm glad to see that David is still doing restorations, as they've alwaysbeen my favourites too.
Normally, that would be a protection diode. It saves the circuit in a reverse current condition. In this case though, it’s more likely acting as a rectifier. Same basic function but different use case. Rectifier failure would cause the current to flip + to - at 60hz. That looks about right for what that screen was doing.
Usually your posts show up at the top of my browse screen, but nothing this time. Glad I randomly checked your channel! Awesome work as always. Love these rescue projects.
That diode seems to me like a regular high frequency SMPS diode. Most likely an general purpose replacement will be sufficient as long as it can handle the frequency (15khz) and the voltage (most likely 180V).
Just a suggestion for future cleaning projects, a set of car detail brushes would really help getting into the small places where dirt likes to go! Keep up the great work and great content! I hope things are improving in Texas!
"if I can make this work and look like new again, then that means that there is hope for the millions of other computers..." Now, the only thing we need is just several thousands of 8-bit guys
You have an issue with flyback blanking too. Try not to leave it on for very long after changing the High voltage diode, or you’ll have the lines forever on that crt. Lookup the fly back blanking circuit in the service manual for it and you should easily find the cap that causes your fly back issue.
Lovely video! First time using headphones while watching your videos. Noticed a small shift in stereo/“mono“ when there was audio from your studio(2:31). Just wanted to let you know. Thanks for another awesome video👌
8-bit Guy: "After removing all the screws it still didn't want to come apart" me: (imagining a giant spider with half its legs holding the top, half the legs holding the bottom, and pulling the monitor back closed when it starts coming apart)
Apple IIs were a huge part of my childhood computing days (though I think I was more used to the monochrome green ones) so this repair attempt was neat to see!
yeah that brush he took your tooth brush and used it to clean that monitor sorry buddy your going to need a new tooth brush now but it was in the name of saving and old classic monitor
I’ve dumped most of the Apple ][ stuff you have discussed in your videos. Like the special breakout cable for the Apple II card for the Mac. I have a Macintosh XL but not a compatible keyboard. So hard to keep all the tech straight after so many generations. It’s always great to see how well you get these old generations to work. Your videos along with another RUclipsr who built a working 6502 computer on a breadboard has really made me want to go back to my 8 bit roots! Thank you.
Survivor bias. The 1% that survives till today is the best of what was made back then. People will be saying the same thing about the 1% made today that survives till 2070.
@@ecospider5 Yeah, the demand for old electronics is way less than the demand there was for them when they were new. And there's still enough of a shortage of surviving ones that even the most common ones command a pretty penny.
Prices were way steeper, too. That said, it's amazing any kind of electronic equipment, no matter the build quality has survived a lifetime of exposure to weather.
not really. MOS ICs are LEGENDARILY bad. there are thousands of dead C64s out there because of failed chips. SID chips are notorious for overheating themselves to death. Yes, those were among the first generations of ICs and we were just learning how to make them. But solid state products nowadays will outperform and outlive any of those old ICs. What fails nowadays are power parts, and only because they run them hotter than they should.
12:33 that's just a common vintage TVS/Avalanche diode, probably Hitachi or Matsushita; this isn't really anything special, it's better than germanium / glass tubes. You can replace this diode with any common parts, as long the diode can withstand the flyback transformer. There is modern parts still produced by Vishay, i think it's called "Ultra-fast Sinterglass" diode or something, not really that interesting thou. EDIT: I think that's just an old, common Hitachi V06
@@rikprince8414 Yes, you should clean your cables more often than any other part of your setup. Screens are only mildly annoying after long enough for cables to be totally disgusting.
There's nothing like a good rescue, especially of a CRT! If my field found C64 has taught me anything, it's that old electronic devices are more robust and resilient than we used to think!
You're not wrong. It's pretty amazing due to the build quality of these old electronics. I wonder who made the CRT that David bought. When were the last CRT's made Adrian???
Just learned it was made by Samsung, a brand I do trust as I've owned several electronics made by them.
Always glad to see restoration from people which have a good heart to save those good old electronics, I feel warm that people still spend time to rescue the electronics from the landfill, in my city they're sure going to trash bin and will tear down and scrape for copper, old computers and monitors much more memories from childhood.
Good to see you here Adrian! I really enjoy your content too!
That's so true like I repair printers and the old HP 4 printers were built like tanks
7:36 Apple using Samsung parts since the good ol' days
That's what I thought as well! How times haven't changed, Samsung still making displays for iphones and stuff :D
Interestingly, with the Machintosh TV (the 90s one), they used a Sony Trinitron CRT. But, if you look at the others similar to it (the LC 500 series, for example), they don't mention that they use that. So, they could be using Samsung displays in these machines, actually. Not really too sure, though.
@@KorbenTheFireX Trinitron tubes are very easy to identify by their shape. They only curve side to side, while shadow masks curve both side to side and top to bottom. Also, if you look closely, Trinitrons have the 3 phosphorus cells side by side while shadow masks have them in a triangle. The problem with this method is that after 1997 when the original patents expired, there were many fake Trinitrons. Apple even has used many fakes in its products. Also, if its a later model and its flat, it could be either an FD Trinitron, a fake FD Trinitron, or a flat shadow mask. Either way, to get the best possible picture quality go for a Trinitron tube that's actually part of a Sony device: a TV, a generic monitor or a VAIO monitor. They may even have Digital Reality Creation or WEGA engine that way.
@@DMDaskalakis The last tube TV I ever bought was a Trinitron. Was heavy as hell with that flat glass. Great TV though.
Went here to write same comment
1980s: "Careful with electronics even the smallest touch can kill them"
2020s: "These sat outside 20 years and still power on"
"The Worst VIC 20 I've Ever Seen" is a good example.
*and the Galaxy note 7.*
Analog electronics which is what comprised alot of electronics back then are far more durable then micro electronics. its why a big hard wired radio is stupidly tough and resistant but heavy, big, and expensive. But a micro electronics small and light radio brakes if in the wrong condition. And its simply because all the electronics are all hard wired because its all analog operated and not digital.
It just boils into they don't build em like they used to because people would prefer convenient cheaper electronic over durability because its far cheaper to replace them then repair them unfortunately.
@@videogamerNattie98 I know. But new electronics can still be durable too.
Quite an unfortunate twist in irony, electronics back then were durable as hell but treated with excessive caution, modern electronics are way more delicate but not always treated the best.
@@RiderLeangle2 Sad
Let’s all remember to thank the volunteers at Computer Reset. Great work guys!
step one figure out what the diode was step two get a modern replacement to repair the monitor's by putting the new replacement in it to get it working again
Lets all take some time to recognize that this monitor was sitting outside in minus 8 degrees F temps during the Texas mega storm we went through back in February, yet it still powers on.
Well below 0 F to well above 100 F. Plus rain.
@@GeekTherapyRadio Yep, it has gotten over 110 F before here in the Metroplex over the years so it is pretty incredible.
It’s snowed at least 6 times in those 15 years and over 100f every summer. Insane it’s even intact lol.
@@TheHilo623 Indeed!
Rain doesn't effect electronics unless they're powered on......
I have been watching this channel for about 5 years now, and there's still something so oddly hypnotizing about watching old computer hardware get cleaned, accompanied some upbeat music, and I can't explain why. I just like it.
LOL about the hypnotizing - I get so into it and in a daze that I head straight to eBay and buy, buy, buy! And yes, David has the very best music!!
You should try odd tinkering :)
Agreed. The video’s title had it all too. Apple Monitor, Restored, Part 1. I’m pumped.
SAME! It's not even something I'd be interesting in pursuing as a hobby. There's just something about these videos that get me sucked in. Same reason why I watch Voltar soldier old video game systems.
You and 1.27 million others. There's much to like by the looks of it!
when you said "Cap Juice", I thought you said "Cat Juice", I was like WHATTTT!!!!
@@StevenViets2006 I am so glad that I'm not the only one!
LAWD
Also a possibility.
Yep me too 😆
I heard Cat Juice too! LOL
Your restoration videos are so cute. It's like seeing people rescue senior animals, giving them nice baths and finding new homes for them. I'm sure if AI ever try to take over the world, they'll leave you alone, lol. I've been binge watching all of them today. They make me really happy.
Also, baking soda and water just does everything, man! Acid reflux? Mix some baking soda in water and drink it. No toothpaste for the night? Baking soda and water paste. Mosquito bites? Make it into a paste with water, and leave it on the bite for a while. And now it seems you can clean old computers with it! Seriously, it seems like it does everything.
"Old monitor.... RISE FROM YOUR GWAAAVE!" nice rescue David!
Hahaha, Altered Beast!
I agree, Nice find. Do you get to keep it or are you fixing it for someone else to eventually buy it? If you have a way to do so you should cast a copy of the front knob panel so that you can make a replacement, maybe with a better hinge.
dude you left your monitor out in the rain for 20 years and somebody found it and took it to computer reset where the 8-bit guy took it home to clean and restore it
I was expecting you to suggest him using a paperclip to replace that diode...
Celebrity boxing match. Make if happen.
Suddenly Strong Bad's old computers being thrown out and still working makes more sense.
Good heavens, now THERE's a throwback reference! Was equally more surprised to see the site's still online today. Would've thought they faded into obscurity.
@@minty_Joe it's weird how a hiatus will get so many people to leave and never check again.. even though they always did little things here and there.
BALETED!!
@@minty_Joe Yeah it's pretty amazing that they've survived the death of flash. I still check up on them every once in awhile
now that's a name I haven't heard since...
really made me sad and angry see these just thrown outside like that. we need more people like you in the world that still has a heart for vintage tech like this
if they are buried in a landfill they maybe be crushed and not salvageable🤔
It warms my heart to see someone rescue a CRT. Keep fighting the good fight!
Whenever I hear about tech landfill, I can only think of copies of ET and other Atari game carts.
The documentary “Atari: Game Over” is literally about that. Watch it! 📺
I think of all the thrown-away devices that were turned into props for _The Secret Life of Machines_ Channel 4 series.
@@Christopher-N Tim Hunkin has been remastering and rereleasing Secret Life on his youtube channel lately, as well as making new videos.
@@RCAvhstape: I have been subscribed to his channel, but thank you. Don't forget that Tim himself encourages downloading of TSLOM episodes (sciencezero.4hv website).
@@Christopher-N Tim is among the best human beings.
When you were carrying the monitor to your car it really had the same energy as someone bringing home an old rescue dog.
Wow. I didn't think about that, but having watching quite a lot of "The Dodo" videos, I know what you mean.
He picked another one for spares, guess the analogy abruptly ends there.
There was a VIC-20 he "rescued" a few years back that fits the analogy even better - look for the 2-parter on that!
You know what they say: “One person’s junk, is another person’s treasure!”
That's my default pick up line at the club
Really glad to see you're back to making videos again after the disaster that hit your area recently.
Hey, don't be rude! The 8-bit guy may not have the most fortunate hairline in the world, but calling it a disaster is a stretch!
@@kimkimpa5150 damn dude no need to murder poor 8-bit guy in cold blood😂😂😂
@@kimkimpa5150 "that one there was a violation" 💀
"Time for alcohol"
That's exactly what I said when I saw all those monitors piled up in the dirt....
I can't believe they still left a bunch of vintage clicky keyboards there in dirt.
they had many more of the monitors in various conditions in the inside of the warehouse, none of them worked unfortunately but i spotted a few rarities that were a shame to see in such a state
A new video, you just made my day!
Correction:you just made everyone's day.
Wow didn't expect to see you here, thanks again for all the 5.4 3v help !
More like a new Windex(tm) commercial....
Not only that but it's a restauration video.
Yes
2:32 You're a brave man for keeping it in your house for 5 weeks. Hopefully nothing hatched. ;-)
I wonder if he's ever found a scary spider in some old piece of electronics :O
Wait, I missed some kind of context here. What was this building where people were just throwing computer parts in an alley? They weren't even putting them in the trash, what is going on?
An old computer warehouse and repair shop in Texas. LGR has a very good video on it and 8 bit guy guest stars. LGR got a repaired computer that belonged to Sierra On-Line but they never picked it back up. He pulled a development copy of one of their games off it.
I don't know if this link will share but here it is.
ruclips.net/video/rvM82T3C2Ik/видео.html
ruclips.net/video/Z-VBITW94zI/видео.html
It's like a place that only youtubers and their friends can go so they have a perpetual stream of rare things they want and money from "helping" to sell it.
That component behind T3 looks like it's a spark gap, which is designed to protect against overvoltage. Your high voltage regulation is defective, which is what is causing the HV to run away, blowing out the picture before arcing and then coming back. The pattern of dim, bright, arc, dim, bright, arc is a bit of a giveaway on that.
If it was an actual diode then it must have been the damper diode since that's in the HV circuit.
some of the connection points on the underside of the board look if not corroded at least in need of clean I suspect voltage is jumping, leaking and at least another component gone u/s (or a trace). Buy at least 3x as many diodes as you might need, as one might blow before you have noted what is going on
It's the rectifier for one of the flyback secondaries, I believe. It's possible the rail it supplies is sampled and used to control the HV, but on the other hand the failing diode could just be causing the problems in other ways.
8:21 Now I feel stupid. Every time someone said or wrote "A-Hole" i assumed it was an insult. They just meant "Anode-Hole" and were talking about CRT monitors. Now I get it!
He doesn't get any windex on the a-hole
you’re an anode hole
So you were being an Anode then ? LOL.
@@frankowalker4662 That must mean they're an optimist because they're so positive.
@@eDoc2020 LOL
Amazing that they worked after being out in the elements for so many years!
Be careful with the Windex on the the tube, a lot of times that can wipe that Aquadag off and cause arcing.
Thanks for the tip
Forgive me, but, what is the aquadag that you mention? Is it a form of protective film on the tube?
I hope someone writes a book about Computer Reset. Such a cool place that (seems to?) have fallen into the right hands. Hope more "Computer Resets" are out there waiting to be discovered and ro have their contents preserved.
I wish there was a computer reset here in central europe
Yes please. Maybe even another documentary.
I really wish we had one local to me.
@@JosephDavies Have you tried making one? There is a nonprofit company called free Geek and they basically take in used PCs and help refurbish them and donate them to needy people or sell them at very affordable prices to the public. They are also mostly volunteer run and even provide classes to teach people how computers work and how to fix them..
Back in the mid-eighties, my dad, bought a disk drive for the Apple /// computer from the fellow that ran Computer Reset at the Infomart computer flea market in Dallas, Texas. It was strange, because it came in a Disk II housing, but it was for the ///. Anyway, they had a BBS back then that I signed into once or twice, but when the video surfaced of the place, and especially the logo, my memories of them came back.
I thought you said, "If there were cat juice it would be sticky" and all I could think was, "Yeah and probably smell pretty horrible every time it got warm!"
took me a few sec too
I thought the same!
I heard the same until I realized it was cap juice…
"Cat juice, you can only rent it!" -- Alf
The question is what would you rather clean off of a board, cat juice, or cap juice?
I appreciate this so much. Repair and restoration is an art that's becoming lost, everyone eager to throw it all away.
Oh man this is the 8bitguy content I live for
The hot Texas climate surely has helped preserving this allowing the monitor to dry after it got wet. If it wouldent be able to dry it would rust away on the inside very quickly.
Yes. And what it was exposed to was only relatively clean rain water, dust and leaves. That's actually not even close to the conditions in a landfill, where it generally would be exposed to crushing force (proper landfills are usually compacted), juices from decomposing organic matter, a lot more salts and acids etc.
Just a minor heads up: for pots, you’re probably better off using deoxit fader lube instead of straight cleaner. That way you can add back whatever lube was lost in the cleaning process. Helpful tip I learned from servicing guitar amps.
TIL!!
That's a great idea. I ordered the D5 for motherboards, ports, and a few items along with the F5 FaderLube for the potentiometers since my Kawasho Color TV/Radio/Alarm Clock/Auto-outlet set is jumpy.
Hi David. Tv technician here.
Almost in any tv when it has retrace lines and white screen means a problem on 180V video line, and sure enough that diode is shot. You can use any fast recovery diode in this case 1A and 600v or more, like FR107, UF4007, BY227, RGP10J... those are mostly used in many tv chassis. You also need to change the electrolytic cap on that 180v line because the diode turns more like a resistor. Must be really good electrolitycs but always is better to change all caps in PSU and vertical deflection circuit wich are the most prone to fail. A similar failure with retrace lines but with image (instead of a white one) is generated by a faulty ceramic cap filtering screen voltage.
Greetings from Argentina.
Loved watching you seat-belt in the CRT. Reminds me of the old LAN party days! 17" monitor, upside down in the back seat.
Literally like an hour ago I said to myself "I hope the 8 bit guy uploads today"
Quick! What are the Power Ball numbers?!
It was
Thou art the 8-bit prophet.
Le satisfactione
the power ball numbers are 2 4 6 8 and 12 lol
AUGH! Part 2's coming out later today, yes? YES??
Nope, probably in a few days/week.
@@Zark-Muckerberg this practice should be illegal.
He said he ordered the part... that may take some time to get depending on where he gets it from.
Guys, guys... My whole point was that I'm very eager to see part 2, k?
@@syntaxusdogmata3333 Yeah but it still doesn't make it an okay practice to do. The viewer gains nothing but frustration and might just forget about this when the second part comes out. The only reason content creators do this is to increase revenue. There is 3 kinds of assholes out there when it comes to RUclips: 1. Those that use clickbait titles that has nothing to do with the video, 2. Those that drag out the length of a video to be 10 minutes or longer for more revenue, when the topic of said video could be explained in 3-5 minutes, 3. And finally the creators that stretch out their content in episodes to increase revenue that way.
7:30 It's probably already discharged since its been a couple days... NO!!! A CRT can remain charged for years and even one that has been discharged can spontaneously build an impressive charge under the right circumstances. ALWAYS discharge the tube before handling unless you really like pain.
Learned that one the hard way.
@@R_Forde You're still here though, so how hard could it be? :D
Better yet: Always discharge EVERYTHING. I've been bitten twice by a digital camera. Not fun. Don't mess with that. Don't be stupid like me
@@chiaraj1003 Yes! Electronics with large capacitors can stay charged for quite a while. Got bitten by a disposable camera once.
This should be required reading for anyone starting in electronics restoration. Thank you for the information and entertainment. Cheers from Austin.
These type of restoration videos are my favorite. Can't wait to see how it turns out.
The last restoration video went crazy. Lots of ppl went mad in the comment
@@keselekbakiak the Tomy one?
Watch Adrian for the best videos of this type. David may be over his head here.
@@keselekbakiak
Well, David didn't handle that unknown computer system with the best of care to put it nicely. While I can see the argument of time and wanting to get done with something at some point, the idea of shorting the power plug in particular was obviously not a good one. Too bad that internet culture being what it is, means a huge outrage followed it instead of just giving him the resonance that handling something like that with better care in the future would be appropriate, in a respectful manner. In that regard I'm glad to see that David is still doing restorations, as they've alwaysbeen my favourites too.
Me too I love watching them and doing them. You should check out some of my restorations on my channel they might interest you.
Normally, that would be a protection diode. It saves the circuit in a reverse current condition. In this case though, it’s more likely acting as a rectifier. Same basic function but different use case. Rectifier failure would cause the current to flip + to - at 60hz. That looks about right for what that screen was doing.
W8 but correct me if i am wrong doesn't this work on dc? Dc has no frequency though?
Its a zener clamping diode in an ancient style casing.
Usually your posts show up at the top of my browse screen, but nothing this time. Glad I randomly checked your channel! Awesome work as always. Love these rescue projects.
Watching this kind of videos is like watching electronic history uncovered
Oh a cliffhanger episode! I'm looking forward to Part 2.
The fact the monitors still working after decades on the outside buries me. I mean i just 18 years old and already broken
@@araigumakiruno lol it gets worse. Source 28 year old
That diode seems to me like a regular high frequency SMPS diode. Most likely an general purpose replacement will be sufficient as long as it can handle the frequency (15khz) and the voltage (most likely 180V).
Ultrafast rectifier
03:20 this was a Hitchcock level of tension I was fully expecting the monitor to catch fire
Strapping in a CRT. This guy is so unintentionally funny that it always makes my day a little better.
Just a suggestion for future cleaning projects, a set of car detail brushes would really help getting into the small places where dirt likes to go!
Keep up the great work and great content! I hope things are improving in Texas!
I love these types of episodes, they even end on a cliff-hanger.
Little bit of extra electronic-forensics in this one
Grrrr! Got me all excited about the repair and now I have to wait for part 2. Great vid by the way! :)
I just can't wrap my brain around the fact that they sat outside in texas for years and they still work. I'm in complete awe.
The best part about The 8-Bit Guy series is that we get another video(s), the bad part is that we have to wait for it.
How come that I just ate 15 mins of this and I’m craving for part 2. You’re a master in creating intrigue😄
Always refreshing to see a legitimate restoration
"if I can make this work and look like new again, then that means that there is hope for the millions of other computers..."
Now, the only thing we need is just several thousands of 8-bit guys
Watching you clean old electronics to upbeat synth music is very comforting to me.
Gotta admit I laughed when the diode fell off and just pulverized itself.
Me too!
13:10 Let see if he gets lucky with those electrolytics
I love how you do these repair videos. Excellent work.
I love that you strapped in the CRT with a seatbelt lol I do that with fast food bags, and when transporting desktop towers.
“And since it’s mostly clean, I’m not going to worry about it.”
*hundreds of jaws drop*
I really expected a trip to the car wash and a pressure wand there.
IKR?!
It'll probably get a more detailed cleaning when he goes to retr0bright it.
i can hear AMMO NYC screaming even if i live in Europe....
@@flounder31 He should really invest in one of those (pressure washer), when you mention it. It'd be useful and satisfying to watch.
good video but the diode is a fast switching high voltage diode.
I suspect the diode you referenced as a replacement probably wont work
Another awesome video David! Can’t wait for episode 2!!! 😃
Good job as always! Wish the video was longer! Keep up the great work!
You have an issue with flyback blanking too. Try not to leave it on for very long after changing the High voltage diode, or you’ll have the lines forever on that crt. Lookup the fly back blanking circuit in the service manual for it and you should easily find the cap that causes your fly back issue.
So pro tip: store your monitors facing down if you put them in a landfill?
You typically wouldn't do that as it can cause problems with certain ones (I think, don't quote me on it).
Probably up would be better.
@@bertsimpsan Whoops, sorry. That's why I said "I think, Don't quote me on it" too.
@@bertsimpsan Relax dude. He already apologised and you're still flipping your shit over something that wasn't a big deal in the first place.
Awesome find cant wait for part 2. Would love to see more of these, like dumpster finds that you restore.
Lovely video!
First time using headphones while watching your videos. Noticed a small shift in stereo/“mono“ when there was audio from your studio(2:31). Just wanted to let you know. Thanks for another awesome video👌
You and LGR releasing monitor videos on the same day? Perfection.
...running to see LGR's. Too good to be true.
@@RodrigoVivanco Me too! Why didn't LGR show up in my feed? *need to see*
@@andreasklindt7144 It's on LGR Blerbs, the second channel not main one
It's a double feature: *LGR* covers IBM, *The iBook Guy* covers Apple.
@@Christopher-N LGR covers pre-Doom stuff and former iBook Guy deals with early Apple, so not quite in their supposed comfort timezone, right?
Thank you. I was craving for another one of your restorations, of course with Anders Enger Jensen music in the background. That is sooo satisfying.
Woo! Can't wait for part 2. Awesome video as always! Thank you for all your hard work.
man, I missed you so much and your videos, I'll wait for that second part! Love Ángel.
Welcome back! You are by far my favorite RUclipsr, I’m so glad your family seems to have survived the strange weather this year.
8-bit Guy: "After removing all the screws it still didn't want to come apart"
me: (imagining a giant spider with half its legs holding the top, half the legs holding the bottom, and pulling the monitor back closed when it starts coming apart)
Basically 99% of tech in Australia has spiders in it when you open it. I opened 6 old school computers, they all had spiders in them.
I didn't think of spiders, per say, but I did think that he was going to find some kind of an animal in there.
That thought is genuinely terrifying. 😱
The original web crawler. :P
So basically, always inject bug spray into an old device and wait about ten minutes before opening lest you suffer the horror.
Thanks 8 bit, this channel is fantastic!
I like your cleaning and restoring videos a lot. Soo satisfying! Good work!
Audio in the studio sounds great! Btw do you have a new camera? (I know you use over head device for the audio)
I love these types of videos. My favourite is the one where you mod an old CRT TV to accept RGB input.
First series since being subscribed so I'm excited to see this
This is the old school type 8bg I've been waiting for. Thank you
I can just imagine you looking around for the diode: "here diode diode... here diode"
And it not being an smd...
"And over here we have the wild Monitor, resting with the rest of its pack."
*its (not "it's")
@@JohnDlugosz I’m actually quite the grammar nitpick myself, kind of strange how I didn’t pick up on this earlier. Thanks.
Hey David! I love your restoration videos!!
Im loving the video. The vibe. And the jean shorts. You just unlocked memories
Hart warming and environmentally sound!
How they turned the place from last chance to a salvage project is amazing! :)
So happy you are putting out new content. Hope you are getting back into a regular weekly routine for videos
Good to see your show is back. I hope your home is on the mend.
YAY! A new 8-bit guy repair video :D. Long time coming baby :)
Apple IIs were a huge part of my childhood computing days (though I think I was more used to the monochrome green ones) so this repair attempt was neat to see!
I think whenever the 8-Bit Guy finds tech in a landfill he has to restore it. This is quality content.
yeah that brush he took your tooth brush and used it to clean that monitor sorry buddy your going to need a new tooth brush now but it was in the name of saving and old classic monitor
I love that you asked Adrian for help with this. The best of retro-YT getting together LUL
that music totally captures the era even though it’s not OF the era. great job.
Love the Apple ][ content!! Can't wait for part 2!!!
I'm surprised that the glass wasn't broken on any of the CRT's themselves.
Its been over a year since the last video completely dedicated to a restoration thank you i love the restorations
I’ve dumped most of the Apple ][ stuff you have discussed in your videos. Like the special breakout cable for the Apple II card for the Mac. I have a Macintosh XL but not a compatible keyboard. So hard to keep all the tech straight after so many generations. It’s always great to see how well you get these old generations to work. Your videos along with another RUclipsr who built a working 6502 computer on a breadboard has really made me want to go back to my 8 bit roots! Thank you.
You know it's gunna be a great restoration when you see Part 1
It amazes me how well that old stuff was made compared to today's stuff. They built to last back then.
Survivor bias. The 1% that survives till today is the best of what was made back then. People will be saying the same thing about the 1% made today that survives till 2070.
@@ecospider5 Yeah, the demand for old electronics is way less than the demand there was for them when they were new. And there's still enough of a shortage of surviving ones that even the most common ones command a pretty penny.
Prices were way steeper, too. That said, it's amazing any kind of electronic equipment, no matter the build quality has survived a lifetime of exposure to weather.
not really. MOS ICs are LEGENDARILY bad. there are thousands of dead C64s out there because of failed chips. SID chips are notorious for overheating themselves to death. Yes, those were among the first generations of ICs and we were just learning how to make them. But solid state products nowadays will outperform and outlive any of those old ICs. What fails nowadays are power parts, and only because they run them hotter than they should.
Needs G2 adjustment (knob labeled as "screen" on newer HV transformers) to get rid of horisontal lines. Lowering voltage helps in most cases.
I love your restoration videos! Thank you!
12:33 that's just a common vintage TVS/Avalanche diode, probably Hitachi or Matsushita; this isn't really anything special, it's better than germanium / glass tubes.
You can replace this diode with any common parts, as long the diode can withstand the flyback transformer.
There is modern parts still produced by Vishay, i think it's called "Ultra-fast Sinterglass" diode or something, not really that interesting thou.
EDIT:
I think that's just an old, common Hitachi V06
How about this one Tarodenaro?
Hitachi 400V 1.3A, Diode, 2-Pin V07E
docs.rs-online.com/5247/0900766b813b75ca.pdf
Watching David clean the cable, thinking "Oh, good, I'm not the only one who does that"
I usually do that first. They are DISGUSTING!!!
@@rikprince8414 Yes, you should clean your cables more often than any other part of your setup. Screens are only mildly annoying after long enough for cables to be totally disgusting.
Very glad your back my friend
This is the only channel that successfully captures my interest with cleaning videos.