As a kid I watched so much TV on that identical '71/72 Sears set at my grandparents' house ... as mentioned in another post my dad repaired Sears sets back in the day. That set also used to have a smoky plastic screen over the tube, supposedly to enhance contrast. I feel a TON of nostalgia for these TVs, for my dad's work on them, and for how I grew up as a lover of Star Trek watching it on these TVs.
When I was a kid at about 12 years old our TV died with a loud pop sound! I knew exactly what happened because a neighbor down the street that was into electronics would blow off capacitors on July 4 because firecrackers were illegal and when someone on July 4th called the police on him they couldn't do anything to him because there was no law against what he was doing! Well my mom said she couldn't get it fixed for quite a while because she didnt have the money! I said I could fix it but she told me that I didnt know how, well I waited till she was gone one day and took the back off the TV and found the capacitor that popped. Luckily I could still read the value and went to Radio Shack and got a new one, soldered it in and turn the TV on and it worked fine. She came home and saw my watching tv she said I thought the tv was broken, I said I told you I can fix it and I did!
Great story. You sound like me. My parents were always weary when I drug home another old tv set to fix up. I use to spend my time on the way home from school hanging out in the tv repair shop watching him work on sets.
In 1978 I purchase a used one of these Sears Toshiba monitors and a Sam's Photo Fact for it. I used it as an Apple II Rev. 0 b&w monitor by hacking a RCA line video connection to the video line amplifier circuit. It worked flawlessly for me for 5 years when I replaced it with an Apple III monitor. Thanks for this video!!
Brother, you are bringing back many happy memories of days when we poked 5V logic boards from old process instrumentation with a 240V variac. I lost count of the scorch marks on my workbench. But by God we had fun.
Retrobriting is a temporary fix to a permanent 'dead man walking' problem. Within two to three years the thing will start to yellow again. Personally I dig the crusty yellowed aesthetic.
What a drama! One of your best videos so far... Cleaning, bulk recaping, poping caps in slow motion! Not to mention few jokes which brings sarcasm to next level. Waiting for part 3... Cheers!
There's going to be a part 3? geez ... reminds me of that Hotpoint he repaired 3 years ago - had to wait almost the whole year to see it finished and working (that video had at least 4 parts).
Shango! That 65 zenith roundie was mine! I posted it on my moms page. I took it to etf and donated it. Lol i was laughing so hard. for some reason i have a collection of crt equipment sold them all. Had a great time at etf
@@shango066 Nice to see you getting good capacitors from Digikey, rather than those silly NTE caps - hey, can you start a Patreon so we can give you MONEY every month?
Awesome man! Cool to see electronics from the year I was born saved. Loved the capacitor EOL show! I got one of these at a yard sale. It worked for about 3 years in my shop and then the sound quit working. I replaced a cap in the audio board and it worked again. A friend of mine that fell on hard times needed a TV and I let him have it, and he used it for about a year then the picture bulb was too weak to do anything else to it. It made it's way back to me, maybe one day I will get lucky and find a picture bulb. Like you say, they are good novelty televisions. Watchable, that's about it. Cheers! 🍻-Al
Shango066, most of the time I have no idea what your talking about but love your repair videos. I love the vintage Americana that’s packed in all of these videos. I’m a bachelor, and I can’t tell you how many times I’ve passed out watching hours of your videos on the big screen drinking Pabst. Upmost respects to your awesome channel
i will add that i appreciate your diligence on stuff like this. I would have yelled obscenities at it until it fixed its self. the odds of me ever working on something like this is rare, like winning the lottery rare. But i really like seeing whats inside these older electronics. today its trivial but down the road it might not be. cant wait to see part 3 and what you come up with to solve this piece of crepe IF.
Witam i POZDRAWIAM!!rzetelna i dokładna naprawa odbiornika TV czarno -białego z tamtych czasów!Cierpliwość i dokładność napraw daje zawsze dobry efekt!Przy zrywaniu lub wyginaniu się pasów synchronizacji pionowej ,możliwość usterki-tranzystory stopniu pionowym,kondensatory lub rezystor nastawy,poza tym trzeba też sprawdzić ich impulsy!Dobry pokaz Video!!Udanych napraw!
I could feel your frustration after the full recap at 57min's in "I thought the sales man was a hostage and you wanted a chopper!" really enjoyed this one 066
This is interesting on the process of troubleshooting older televisions. One comment I wanted to mention for future reference. You can use an ohm meter to check the impedance of a speaker if it isn't marked or not sure of the marking. The speaker you mentioned 32ohms; is actually a 3.2 ohm which is why your audio noise in the screen was greater than with an 8ohm speaker. Most common speaker impedance values I've come across are 3.2, 4, 8 and 16 ohms. If there is an actual 32 ohm speaker; that's new to me. Keep the videos coming I enjoy and learn a lot from them.
I did up Sony of similar vintage to this same problem all the caps were baked and off the scale. Luckily no open IF coils but someone had previously messed around with the alignment to try and and compensate for the crappy picture it had. Loved the slow motion cap popping. A favorite past time of mine.
It's always a treat to watch a new and exciting shango video each week. Keep up the great work. :-) ~ This program brought to you by the new *Power Air Fryer Oven* and the *Power Smokeless Grill* ++ and as for those old Crap-acitors that were EOL'd " ... they're officially Crepe-Erased (from existence).
Remember as a kid always wanting higher resolution, always wanting the next generation of tv? we just were happy to watch a show! better does not mean happier.
The yellowing/browning of the cases of old electronics, when not cigarette smoke related are usually the result of bromine. Bromine compounds are inserted into the plastic during the manufacturing process as a flame retardant. Bromine is the great escape artist of elements, it will find a way out of whatever you put it in. Thanks for the good work!
Another nice enjoyable long video from you, shango. I just Love your sarcastic humour as it sure brightens up my day, along with your sexy voice. It is a shame you don’t see these small portable sets anymore, I don’t even find any CRT tv’s at the local Tip (Dump) no more...only flat screens with smashed panels now. Looking forward to your next video.....love always, Corinna xoxo
Nice diagnosis with the inductor, I can't wait for the next part to this. I was actually thinking "try composite." When finished maybe you can mod it with AV RCA inputs and a select switch, It would make a great set if it had that. Well like I said, nice that you making progress on this lil fella, I am learning alot here, Good job and thanks again!
I had the same Sears set in 9 inch version. It had open electrolytic 3 MFD coupling cap from hozontal phase to the sync circuit and had to clean the tuner. That was my first 12volt battery set. The set worked perfect at the beach I built.my first jump-started unit before commercial jump starters hit the market. I had many pairs of holy jeans due to battery acid. They were so holy that the pope would have blessedme
Great video, thanks for the free content. I've read that MEK on a wipe can melt the discolored plastic off if you don't want to take the time with retrobrite / peroxide
Hello, great troubleshooting as usual. My guess is that if it’s only the tap to ground vs. the whole coil, either a successful repair will be made to the original, or with the little component tester, you will find the inductance and maybe sub something from a multi band scrap radio or something. Luckily only a primary is used. I’m willing to bet almost anything close will work, just to complete the circuit. It might not be perfect, but who knows. We’ll stay tuned to see what’s devised. Take care.
Thanks shango066 for the capacitor info and the scans for the 920U!!!!! I know I have my work cut out for me but I would rather shotgun all the caps instead of shot gunning all of the transistors! Now time to order parts and then hope for the best! We'll be standing by for video #3. Hopefully the microsurgery will be successful, my nightmares used to be the old General Electric PE series of walki talkies used by public safety. The channel elements were an absolute nightmare to recrystal since they were smaller than Motorola channel elements in the MX 300 line of portables. Bring on the Optivisor and hope the hands don't shake too much.
Nice troubleshooting Shango! You are one of ths best! Looks like that open coil cicuit has some negative feedback from the small part of the winding below the center tap. Could be hard to recreate something that would be equivalent. Hopefully you can find the broken wire inside or maybe worst case dewind it and count turns as you go and rewind. You'll need some hyper fine wire I'm sure!
@Etienne PCBs actually smell quite pleasant. A fruity scent like Apples and Peaches. That adds to the danger because you don't have the pungent smell of other dangerous stuff like solvents.
At 22:20, to avoid a "strike", +shango066 edited out the part where the Ajax White Knight appears from nowhere on his white stallion, then mimics the final moments of "Touch Me", by The Doors... (Nearly everyone who is 50+ is aware of the anectote of the group's "borrowing" the last four notes of the song)
You should collect another bag of those old electrolytics and send them to the hydraulic press channel! They have some super pro high speed cameras, and they love to blow up stuff!
The yellow plastic can be brightened like brand new with the bleaching gel for use in hair salons. Apply the gel, wrap in plastic kitchen foil so it won't dry out, expose to bright sunlight for a couple of hours (all sides evenly). You'll be amazed about the result.
when i was about 14 years old and really interested in electronics i used to get old capacitors from scrap tv sets and clip them to long wires and hang them out my bedroom window , one day i went a bit to far and lowered a big 10000uf 63volt cap out the window but it went down through the window down staires i put 240 volts across and waited for the loud kaboom , it came and along with it a blood curdling scream from my mum who was cooking dinner in the kitchen (the cap had gone down through into kitchen window) along with smashing crockery . i didnt do that again until i left home :)
isnt it amazing when folk left from the mining village they leave their stuff behind. i used to dream about places like that to get electronics , interesting to see these sets again 50 years on, we had the toshiba one and used to watch "the monkeys " and "bananna splits" on it, ah good times
That's proving to be a tough one. Hopefully your microsurgery comes through! Can't let all those nice, new caps go to waste. At the beginning of the video when you showed that 1970 TV on the swivel base. If home computers of the late 70's, early 80's were popular in 1970, that TV looked like it would make a good monitor. Sort of looks like one, even the base on it makes it look like a computer monitor.
Mr. Clean magic erasers are good for getting plastic white again. But you can test in a spot that you will not see if you think it might mess up the plastic.
Check out that old selenium rectal fire ( old comic joke from popular electronics of the '60's) my Sony had a bad one and replacing it with a modern rectifier ( 1N4007 ?) cured the AC issue. You probably lready know that if they let out the magic smoke it should not be inhaled, very bad for ones health and smells like Sh!t. Also those old phelonic PC boards are known for having traces that lift off and split from the circuit board. Hard to trace many times, re check the joints for all the caps you replaced. Love these videos, I know they are a PITA to produce but they are appreciated.
Please, please, please, blow up some bumblebee capacitors in a future video! I want to see the guitar people come unhinged at the destruction of one of these "magical" components. By the way, exploding bumblebee capacitors are REAL. I found this out the hard way with the first All-American Five radio that I attempted to restore when I was about 13. The capacitor was across the 35W4 rectifier. When that capacitor shorted out, it went off *like a firecracker* and a carbon resistor was cremated, making for plenty of smoke.
i do know sears was using sanyo well into the 80's since i have a sanyo made betamax vcr made by sanyo for sears. i had found that out cause i needed to change a belt and found sanyo labeled on the inside
YES ! A new Shango video ! Time for a soda and some popcorn ! Great videos you do Shango ! The 8 bit guy (has a RUclips channel) has a process for getting rid of the yellowing of cases like that disco TV. Check out his channel for more info on that. You decide if that’s a process you want to try when getting electronics cases looking better. He does it to old MAC computers.
51:00 in and I think you have some kind of ground reference issue somewhere. I'm betting one of those boards has a dirty socket on the ground or something? Loose ground terminal?
Did I really get this right? They are selling a diamond for 40.000 bucks on teleshopping? Who would be that crazy to to this?!? Can‘t get over it... great work Shango :-)
Sometimes changing or cleaning the potentiometers fix more problems than changing capacitors. I have a 5inch Broksonic that had a very crappy picture, wouldn't lock the vertical and it was just some corroded pots.
If your D to A converter has a composite video output, I would use it to provide a stable external H/V lock for your 'scope. That may provide an easier time tracking down your ac ripple path out of your power supply. Also, with the converter off of the VHF input, I would inject the comp video into the sync separator (thru a cap) to see if bypassing the IF shows more stability.
Removing color damage is actually really easy. A guy known as "8-Bit Guy" has a RUclips channel in which he restores old computers from the 80s. Well, they often have color damage. He uses a simple process called "RetroBrighting," in which salon conditioner is brushed onto the plastic, and it's set out in the sun. I'll be damned, but it works. He also has a process in which he dunks the parts in water. Check it out.
Really like the 60Hz-Flashes in the slo-mo-blowups! Wonder how it would look like with rect-o-fied mains smoothed by a, lets say, 5.000 mF cap and a choke.
I read that cryogenic treated caps offer unsurpassed sound reproduction with tangy fresh hi's and the creamiest mid-range response with in command smokey shadow-boxed bass.
They're good, but its hard to beat the pre-soldered Black Beauty/Bumblebee "tone" capacitors, sold on eBay. Very rare, and primarily only found in junk boxes purchased at estate sales of retired TV/radio repair men. They have that true vintage sound, and an authentic look that make a real difference in your listening pleasure!
26:11 That's exactly the same way one of the power filter caps failed in a Marshall guitar amp I used to have. Same exact sound and nasty smelling smoke too.
![Electronic Circuitry Diagnosis And Fault Finding! [Repair]](/img/1.gif)
I hope you enjoy making these videos as much as we enjoy watching them shango!
Zarek Pirkola well said
As a kid I watched so much TV on that identical '71/72 Sears set at my grandparents' house ... as mentioned in another post my dad repaired Sears sets back in the day.
That set also used to have a smoky plastic screen over the tube, supposedly to enhance contrast.
I feel a TON of nostalgia for these TVs, for my dad's work on them, and for how I grew up as a lover of Star Trek watching it on these TVs.
"Enough plastic bags to suffocate an orphanage". You make me laugh so often.
That was genius. I don't think he realises how amazing he is.
Ksssszz
Pro trick : you can watch movies at flixzone. I've been using them for watching a lot of movies lately.
@Matthew Thaddeus yup, have been watching on flixzone} for since november myself :)
When I was a kid at about 12 years old our TV died with a loud pop sound! I knew exactly what happened because a neighbor down the street that was into electronics would blow off capacitors on July 4 because firecrackers were illegal and when someone on July 4th called the police on him they couldn't do anything to him because there was no law against what he was doing! Well my mom said she couldn't get it fixed for quite a while because she didnt have the money! I said I could fix it but she told me that I didnt know how, well I waited till she was gone one day and took the back off the TV and found the capacitor that popped. Luckily I could still read the value and went to Radio Shack and got a new one, soldered it in and turn the TV on and it worked fine. She came home and saw my watching tv she said I thought the tv was broken, I said I told you I can fix it and I did!
Great story. You sound like me. My parents were always weary when I drug home another old tv set to fix up. I use to spend my time on the way home from school hanging out in the tv repair shop watching him work on sets.
Lucky you didn’t get electrocuted.
@@mrFalconlem you get use to it. ;-)
@@rock.doctor No you don't, electrocution kills.
@@mrFalconlem How? If he knows what he's doing there's no problem
In 1978 I purchase a used one of these Sears Toshiba monitors and a Sam's Photo Fact for it. I used it as an Apple II Rev. 0 b&w monitor by hacking a RCA line video connection to the video line amplifier circuit. It worked flawlessly for me for 5 years when I replaced it with an Apple III monitor. Thanks for this video!!
Brother, you are bringing back many happy memories of days when we poked 5V logic boards from old process instrumentation with a 240V variac. I lost count of the scorch marks on my workbench. But by God we had fun.
Boy that cap popping is some seriously awesome footage slowed-down. Good Job.
Crepes are delicious
Did you notice with one cap when it popped that it stunned an ant who was nearby?
Retrobrite that little one.
"Suffocate an orphanage..." I giggled.
Retrobrite or leave the patina. It will go well with an old yellow computer to match.
I brought that comment up at dinner tonight, it certainly brightened up my day!
Mark Twain on opera: " I haven't heard such a din since the orphanage burned down."
Retrobriting is a temporary fix to a permanent 'dead man walking' problem. Within two to three years the thing will start to yellow again. Personally I dig the crusty yellowed aesthetic.
I’m ready to watch that yellow 70’s tv get restored! Thanks for the video! Loved it like always
IDK why but I enjoy watching you restoring crusty tv sets
Not sure if you will see this, but I really enjoy these videos. Glad you’re still here on RUclips.
well, I dunno about disco but that swivel base sears is damn near a computer monitor before computer monitors were a thing.
WOW! ..... I could smell those caps exploding clear over here in Indiana ... LOL.
What a drama! One of your best videos so far... Cleaning, bulk recaping, poping caps in slow motion! Not to mention few jokes which brings sarcasm to next level. Waiting for part 3... Cheers!
There's going to be a part 3? geez ... reminds me of that Hotpoint he repaired 3 years ago - had to wait almost the whole year to see it finished and working (that video had at least 4 parts).
Shango! That 65 zenith roundie was mine! I posted it on my moms page. I took it to etf and donated it. Lol i was laughing so hard. for some reason i have a collection of crt equipment sold them all. Had a great time at etf
Yeah I know I wondered if you would catch that! I hid it in there pretty deep but you caught it
Hey andrew, thanks again for the admiral!
@@shango066 Nice to see you getting good capacitors from Digikey, rather than those silly NTE caps - hey, can you start a Patreon so we can give you MONEY every month?
What a way to start my day off. Love you Shango!
Awesome man! Cool to see electronics from the year I was born saved.
Loved the capacitor EOL show! I got one of these at a yard sale. It worked
for about 3 years in my shop and then the sound quit working. I replaced a
cap in the audio board and it worked again. A friend of mine that fell on
hard times needed a TV and I let him have it, and he used it for about a year
then the picture bulb was too weak to do anything else to it. It made it's
way back to me, maybe one day I will get lucky and find a picture bulb.
Like you say, they are good novelty televisions. Watchable, that's about it.
Cheers! 🍻-Al
Shango066, most of the time I have no idea what your talking about but love your repair videos. I love the vintage Americana that’s packed in all of these videos. I’m a bachelor, and I can’t tell you how many times I’ve passed out watching hours of your videos on the big screen drinking Pabst. Upmost respects to your awesome channel
I had that 1966 set as a kid. Had the battery pack too.
Nice to see one working again. (sort of) Thanks!
That slow mode really looked awesome! Almost as nice as 4th of July fireworks. 👍👍👍
i will add that i appreciate your diligence on stuff like this. I would have yelled obscenities at it until it fixed its self.
the odds of me ever working on something like this is rare, like winning the lottery rare. But i really like seeing whats inside these older electronics. today its trivial but down the road it might not be. cant wait to see part 3 and what you come up with to solve this piece of crepe IF.
Witam i POZDRAWIAM!!rzetelna i dokładna naprawa odbiornika TV czarno -białego z tamtych czasów!Cierpliwość i dokładność napraw daje zawsze dobry efekt!Przy zrywaniu lub wyginaniu się pasów synchronizacji pionowej ,możliwość usterki-tranzystory stopniu pionowym,kondensatory lub rezystor nastawy,poza tym trzeba też sprawdzić ich impulsy!Dobry pokaz Video!!Udanych napraw!
Damn you shango, i was in the middle of painting a door, then this video popped up!
I could feel your frustration after the full recap at 57min's in "I thought the sales man was a hostage and you wanted a chopper!" really enjoyed this one 066
This is interesting on the process of troubleshooting older televisions. One comment I wanted to mention for future reference. You can use an ohm meter to check the impedance of a speaker if it isn't marked or not sure of the marking. The speaker you mentioned 32ohms; is actually a 3.2 ohm which is why your audio noise in the screen was greater than with an 8ohm speaker. Most common speaker impedance values I've come across are 3.2, 4, 8 and 16 ohms. If there is an actual 32 ohm speaker; that's new to me. Keep the videos coming I enjoy and learn a lot from them.
I did up Sony of similar vintage to this same problem all the caps were baked and off the scale. Luckily no open IF coils but someone had previously messed around with the alignment to try and and compensate for the crappy picture it had. Loved the slow motion cap popping. A favorite past time of mine.
When I worked on my mini Sears TV that had a NP cap I used a big yellow 2uf capacitor as a replacement. Seemed to work since I'm cheap.
How do you sleep at night after doing that? You really should replace it correctly.
It's always a treat to watch a new and exciting shango video each week. Keep up the great work. :-)
~ This program brought to you by the new *Power Air Fryer Oven* and the *Power Smokeless Grill*
++ and as for those old Crap-acitors that were EOL'd " ... they're officially Crepe-Erased (from existence).
It's impressive you got this to display any image at all. Good work!
When I was a kid, we hat that same tv in the kitchen. I used to watch cartoons while eating breakfast.
Remember as a kid always wanting higher resolution, always wanting the next generation of tv?
we just were happy to watch a show! better does not mean happier.
The yellowing/browning of the cases of old electronics, when not cigarette smoke related are usually the result of bromine. Bromine compounds are inserted into the plastic during the manufacturing process as a flame retardant. Bromine is the great escape artist of elements, it will find a way out of whatever you put it in. Thanks for the good work!
What a trip... thanks for creating this great content
Great cleanup. Love the slo-mo's on the cap poping.
We've got 240vac here in Thailand, I'll bet that would make a show of those old capacitors. Yea it's a frickin mess but you had fun making it.
Another nice enjoyable long video from you, shango. I just Love your sarcastic humour as it sure brightens up my day, along with your sexy voice.
It is a shame you don’t see these small portable sets anymore, I don’t even find any CRT tv’s at the local Tip (Dump) no more...only flat screens with smashed panels now.
Looking forward to your next video.....love always, Corinna xoxo
Nice diagnosis with the inductor, I can't wait for the next part to this. I was actually thinking "try composite." When finished maybe you can mod it with AV RCA inputs and a select switch, It would make a great set if it had that. Well like I said, nice that you making progress on this lil fella, I am learning alot here, Good job and thanks again!
I admire your stick-to-it-ness.
I had the same Sears set in 9 inch version. It had open electrolytic 3 MFD coupling cap from hozontal phase to the sync circuit and had to clean the tuner. That was my first 12volt battery set. The set worked perfect at the beach I built.my first jump-started unit before commercial jump starters hit the market. I had many pairs of holy jeans due to battery acid. They were so holy that the pope would have blessedme
The nine inch version had an AGC adjustment near the if circuit
I love how you say "Capaaaaacitors". :)
He's bored and annoyed with everything...
Great video, thanks for the free content. I've read that MEK on a wipe can melt the discolored plastic off if you don't want to take the time with retrobrite / peroxide
Nichicon UPW and PW series are my favorite capacitors.
Great video! Peroxide gel/saran wrap trick works great getting the yellow back to white on that Sanyo. It worked on my yellowed Commodore 64 case.
Check out new methodes using only sun at: ruclips.net/video/8P1OVj0lcqY/видео.html
Hello, great troubleshooting as usual. My guess is that if it’s only the tap to ground vs. the whole coil, either a successful repair will be made to the original, or with the little component tester, you will find the inductance and maybe sub something from a multi band scrap radio or something. Luckily only a primary is used. I’m willing to bet almost anything close will work, just to complete the circuit. It might not be perfect, but who knows. We’ll stay tuned to see what’s devised. Take care.
Thanks shango066 for the capacitor info and the scans for the 920U!!!!! I know I have my work cut out for me but I would rather shotgun all the caps instead of shot gunning all of the transistors! Now time to order parts and then hope for the best!
We'll be standing by for video #3. Hopefully the microsurgery will be successful, my nightmares used to be the old General Electric PE series of walki talkies used by public safety. The channel elements were an absolute nightmare to recrystal since they were smaller than Motorola channel elements in the MX 300 line of portables. Bring on the Optivisor and hope the hands don't shake too much.
You just about have to have surgeon's hands.
Two thumbs up for the Slow-mo fireworks show.
I searched for chuck norris total gym and I can find this commercial uploaded 12 yrs ago to youtube.. wow they're still selling that thing
Nice troubleshooting Shango! You are one of ths best! Looks like that open coil cicuit has some negative feedback from the small part of the winding below the center tap. Could be hard to recreate something that would be equivalent. Hopefully you can find the broken wire inside or maybe worst case dewind it and count turns as you go and rewind. You'll need some hyper fine wire I'm sure!
Super slow mode cap popping , my favorite video of the week!
Your humor is fantastique love the show can't wait for part 3 !!
is "smoking caps" legal in commifornia, medicinal of course?
It sure was therapeutic for me!!! 😂
@Etienne PCBs actually smell quite pleasant. A fruity scent like Apples and Peaches. That adds to the danger because you don't have the pungent smell of other dangerous stuff like solvents.
Yes, but you need a Rx from a cap doctor.
Get you on a watch list fo sure
@@albinklein7680 for me, they just smell like lead and rust
At 22:20, to avoid a "strike", +shango066 edited out the part where the Ajax White Knight appears from nowhere on his white stallion, then mimics the final moments of "Touch Me", by The Doors...
(Nearly everyone who is 50+ is aware of the anectote of the group's "borrowing" the last four notes of the song)
Tricky little set. Loved the unexpected cap EOL's
Retro-Bright that yellow Sears TV
You should collect another bag of those old electrolytics and send them to the hydraulic press channel! They have some super pro high speed cameras, and they love to blow up stuff!
The yellow plastic can be brightened like brand new with the bleaching gel for use in hair salons. Apply the gel, wrap in plastic kitchen foil so it won't dry out, expose to bright sunlight for a couple of hours (all sides evenly). You'll be amazed about the result.
when i was about 14 years old and really interested in electronics i used to get old capacitors from scrap tv sets and clip them to long wires and hang them out my bedroom window , one day i went a bit to far and lowered a big 10000uf 63volt cap out the window but it went down through the window down staires i put 240 volts across and waited for the loud kaboom , it came and along with it a blood curdling scream from my mum who was cooking dinner in the kitchen (the cap had gone down through into kitchen window) along with smashing crockery . i didnt do that again until i left home :)
That capacitor popping was pure art.
"Enough plastic bags to suffocate an orphanage." That's hilarious dark humor, I almost blew the food I was eating on the TV screen laughing.
isnt it amazing when folk left from the mining village they leave their stuff behind. i used to dream about places like that to get electronics , interesting to see these sets again 50 years on, we had the toshiba one and used to watch "the monkeys " and "bananna splits" on it, ah good times
I was told that the value stated on Japanese caps from that era would be a minimum value and were often quite a bit more.
Usual failure of electrolytic caps is higher capacity and inceased esr.....
That's proving to be a tough one. Hopefully your microsurgery comes through! Can't let all those nice, new caps go to waste. At the beginning of the video when you showed that 1970 TV on the swivel base. If home computers of the late 70's, early 80's were popular in 1970, that TV looked like it would make a good monitor. Sort of looks like one, even the base on it makes it look like a computer monitor.
Mr. Clean magic erasers are good for getting plastic white again. But you can test in a spot that you will not see if you think it might mess up the plastic.
I enjoyed the celebratory capacitor fireworks!
It's about time that recapping was recognised as a superpower!
Check out that old selenium rectal fire ( old comic joke from popular electronics of the '60's) my Sony had a bad one and replacing it with a modern rectifier ( 1N4007 ?) cured the AC issue. You probably lready know that if they let out the magic smoke it should not be inhaled, very bad for ones health and smells like Sh!t.
Also those old phelonic PC boards are known for having traces that lift off and split from the circuit board. Hard to trace many times, re check the joints for all the caps you replaced.
Love these videos, I know they are a PITA to produce but they are appreciated.
Good to see you back ..top man love all you do 🙋👏🙌
Thank you for tonights entertainment shango, you're a beautiful man
Please, please, please, blow up some bumblebee capacitors in a future video! I want to see the guitar people come unhinged at the destruction of one of these "magical" components.
By the way, exploding bumblebee capacitors are REAL. I found this out the hard way with the first All-American Five radio that I attempted to restore when I was about 13. The capacitor was across the 35W4 rectifier. When that capacitor shorted out, it went off *like a firecracker* and a carbon resistor was cremated, making for plenty of smoke.
i do know sears was using sanyo well into the 80's since i have a sanyo made betamax vcr made by sanyo for sears. i had found that out cause i needed to change a belt and found sanyo labeled on the inside
I miss Japernise build quolity. Built well & for mainternace. Intresting to see how they became dominat on eletronic devices in the begining.
quality*
YES ! A new Shango video ! Time for a soda and some popcorn ! Great videos you do Shango !
The 8 bit guy (has a RUclips channel) has a process for getting rid of the yellowing of cases like that disco TV.
Check out his channel for more info on that.
You decide if that’s a process you want to try when getting electronics cases looking better. He does it to old MAC computers.
Nice going. I was predicting it was a shorted voltage regulator transistor that was letting too much AC hum though.
10/2024
I have a small RCA 13 in tvin my garage. It works. Happy to donate to you if you want it. I bought it new in 1984. Key West Florida
51:00 in and I think you have some kind of ground reference issue somewhere. I'm betting one of those boards has a dirty socket on the ground or something? Loose ground terminal?
No classic green jacket ?
😑
Love the video thanks very much.
Did I really get this right? They are selling a diamond for 40.000 bucks on teleshopping? Who would be that crazy to to this?!? Can‘t get over it... great work Shango :-)
Awsome vid, can't wait for part 3.
Thank yo for sharing
Star Wars special effects master, the ozone is strong with this one.
the gold caps remind me of old german frako caps, they always shorted...
......and the old "ROE" too.
Sometimes changing or cleaning the potentiometers fix more problems than changing capacitors. I have a 5inch Broksonic that had a very crappy picture, wouldn't lock the vertical and it was just some corroded pots.
If your D to A converter has a composite video output, I would use it to provide a stable external H/V lock for your 'scope. That may provide an easier time tracking down your ac ripple path out of your power supply.
Also, with the converter off of the VHF input, I would inject the comp video into the sync separator (thru a cap) to see if bypassing the IF shows more stability.
Hook up a 70's pong 'tennis' console to it . . the height of retro cool
The old telestar game console.
Removing color damage is actually really easy. A guy known as "8-Bit Guy" has a RUclips channel in which he restores old computers from the 80s. Well, they often have color damage. He uses a simple process called "RetroBrighting," in which salon conditioner is brushed onto the plastic, and it's set out in the sun. I'll be damned, but it works. He also has a process in which he dunks the parts in water. Check it out.
Usually the only vintage Sears TVs i see are Sanyo and Toshiba, but sometimes see the newer 1990s stuff made by JVC and RCA.
Really like the 60Hz-Flashes in the slo-mo-blowups! Wonder how it would look like with rect-o-fied mains smoothed by a, lets say, 5.000 mF cap and a choke.
Another great video. Love the capacitor popping session.
Focus you f%@#.
AvE fan I see. Me 2
@@garybevis8691 I knew someone would pick up on that.
I read that cryogenic treated caps offer unsurpassed sound reproduction with tangy fresh hi's and the creamiest mid-range response with in command smokey shadow-boxed bass.
They're good, but its hard to beat the pre-soldered Black Beauty/Bumblebee "tone" capacitors, sold on eBay.
Very rare, and primarily only found in junk boxes purchased at estate sales of retired TV/radio repair men.
They have that true vintage sound, and an authentic look that make a real difference in your listening pleasure!
It's absolutely true!
Neat little set the Sony schematic dude has. Compact sony design, probably a pain to pull apart!
Where did you get that spray magic?
Where can you get that pink cleaner?
Waaaaaahhhhh !!!! Bravo. Une télévision qui marche en noir et blanc
Shango, would you pick around in a 70's Apple computer monitor? I'd love to hear your comments on non-TV CRT tech from around three disco-y beige era
"I don't see any adjustment to tweak the crepes..." LOOOOOOOOOLLLL!!!!!
26:11 That's exactly the same way one of the power filter caps failed in a Marshall guitar amp I used to have. Same exact sound and nasty smelling smoke too.
That cap thing should be its own video. That was great.
New part video - exploding old caps ;)
I like the computer monitor look to the Sears TV.
Thanks for the videos. Carl
told ya you'd love that tester.
worth every bit of the $10 they charge for them.
Are the batteries from a Chevy Spark?