I like how you always show the before and after....it's alot more interesting to watch than someone restoring a set with no baseline. I hope there's going to be a follow up on this to address the other issues, like the picture rolling.
I live in Monticello, NY, 40 minutes from Channel Master in Ellenville, NY. Still in business since 1949, starting with TV Antennas and branching out into Consumer Electronics.
No joke, I through one of those sets off a second story balcony plugged in. All I had to do was put the tubes back in their sockets and it still worked. The GE on the other hand. KABOOM!
I have a set from 2002 that loves red. Everything red is bleeding. I know you will call this a black plastic crap set but it is a surprisingly good set. It uses the trinitron type tube even though it is an rca TV. It will have a dim picture for about 40 minutes and then has fairly weak color. It went from great to this in 5 days. I thing the picture tube is beginning to fail. I hope it goes so I can replace it with a digitally tuned crt TV.
Amazing, you did the digital thing of restarting, but nothing digital restarts as fast as something analog, God I miss those analog days when things just, well ,worked as designed
I noticed the picture tube does not appear that long. I remember TV's with a bigger area for the picture tube neck.Anyway, great video!!! Thank you!!!!!!
Greetings: FYI: Horizontal and vertical hold controls both change the respective frequencies of their circuits, but you may not have known that both controls actually set the frequencies to be slightly under that of the incoming video. That allows the derived H & V pulses to prematurely force an end to the respective cycles before they would naturally end on their own. That's why the settings of too fast and too slow freq. have different reactions as the oscillators drift past the lock points. Just a thought.
Only at the very end of the video did I realize the televisioncontent wasn't a parody of American TV... Holy shit, do they air that all the time or what?
I remember something about the lingering dot and a selling point about eliminating it, I believe the cathode goes to ground when you turn it off ,something like that
Have you tried rejuvinating the original crt before changing it? i have this exact same set & i have been using it as my daily watcher for the last 15 years with it's original crt, which i never had to rejuvinate. i did have to replace the filter caps in the power supply & the caps in the vertical circuit.
Because of this video I just purchased a "Super Mack" tester of my own off ePay. when it arrived today it occurred to me that the thing didn't have the type 1 socket I need X.X +shango066 would you happen to know what the pinout is so I could maybe jerry-rig something with paperclips and jumper wires from the master socket?
I guess it's a toss up now of what to do, leave the new picture tube in the set, put the old and repaired tube back in, or keep the old one in storage in case you run into another set needing the same tube.
I would always rejuvenate the b&w crt's and most would come right back solidly..unless it's been rejuvenated previously, then there's no more boron material to expose on the gun cathode.
As time goes by replacement CRTs and electron tubes will be impossible to find making vintage electronic repair impractical. Guess that'll be true even with tube state radios and phonographs. Looks like a good strong CRT, no lingering dot! You are indeed lucky to get it.
8:20 These early portables were so slim; I think they gave up on the "portable" concept for TVs with bigger screens than 12" in the '80s some time; all the sets this size stuck out a foot in the back by that time. I wrecked a set like this one when I was about 3 by sticking coins in one of those little slots; must have thought candy or something would come out. I think that little hole in the top right corner is for the standby power on the Space Command models. I've never seen a set like this with UHF, but it has the position on the dial and the knockout for antenna hookups; would the dial have stuck out the side?
i have a tv with far worse tube than that(teleton th14), normally it'd just be dumped, but as its dual band vhf/uhf(rare here in the uk, i think it was intended for the usa as it has green-black-white mains lead,and looks like the mains transformer was originally wired for 120v mains, now set for 220), i'd like to resurrect it, needs 340AB4 crt
Incidentally, it's called a raster, not a roster..lol...also, you definitely need to check all the electrolitics and those old signal caps, clean the tube sockets, and all the moving pots etc.. Worked on a lot of CRT TVs in my 35 years in the service business. Best wishes.
Why don't you rejuve dead crt's? I know it is futile but for grins and giggles. Also saw you fix an old techtronix osc you said you didn't need. Perhaps gift it to new kids in the sport?
I have a zenith chas# 16f25crt TV in my small collection. I've gotten all the problems fixed accept for one. (it has a really good CRT in it) it has a vertical roll problem. would you be able to help me, possibly maybe posting up a video on how to repair the problem or email me please. (the roll changes speed as it warms up)thank you for your time
+Mani Flores integrator? It looks like a disk capacitor with 3 leads, it feeds and filters the sync pulse to the vertical Multi-vibrator circuit , Very common failure, hard to find part. Have to make it
+shango066 tv works good when its cold. when it starts to roll I spray coolant on a farad radial capacitor marked .0068 x 200volt then the Tv stops rolling; until its fully warm and coolant will not change it any more. what would I need to make that 3 legged part? thank you
+Mani Flores thank you for replying. we replaced the point .0068 capacitor now the tv works for 5mins while the tv warms up, that integrator with 3 leads fails when it warms up. it was great if I put coolant on it. So I figured that Is the problem, what do I need to make a new one? I appreciate any info available. thanks
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I like how you always show the before and after....it's alot more interesting to watch than someone restoring a set with no baseline. I hope there's going to be a follow up on this to address the other issues, like the picture rolling.
I live in Monticello, NY, 40 minutes from Channel Master in Ellenville, NY. Still in business since 1949, starting with TV Antennas and branching out into Consumer Electronics.
Zenith made the best televisions in the 60's and early 70's, incredibly reliable and easy to work on.
At 26:43 the vertical linearity issue makes Steve Edwards resemble a Conehead. Excellent.
No joke, I through one of those sets off a second story balcony plugged in. All I had to do was put the tubes back in their sockets and it still worked. The GE on the other hand. KABOOM!
Nice CRT swap and interesting diagnosis. Good to compare the 2 CRT tubes with the old caps still in place.
That looks like the chassis of the TV I had in high school in the late 60’s. Same chassis layout. The picture tube was a 17DQP4.
My favorite channel enjoy an expert learn so much. so amazing
That old CRT was buggered, wonder if it will come good for a while now!
I have a set from 2002 that loves red. Everything red is bleeding. I know you will call this a black plastic crap set but it is a surprisingly good set. It uses the trinitron type tube even though it is an rca TV. It will have a dim picture for about 40 minutes and then has fairly weak color. It went from great to this in 5 days. I thing the picture tube is beginning to fail. I hope it goes so I can replace it with a digitally tuned crt TV.
Amazing, you did the digital thing of restarting, but nothing digital restarts as fast as something analog, God I miss those analog days when things just, well ,worked as designed
I believe I watched Dialing for Dollars on that tv set after kindergarten. RIP Ron Kaiser.
I noticed the picture tube does not appear that long. I remember TV's with a bigger area for the picture tube neck.Anyway, great video!!! Thank you!!!!!!
I love that tube!! Just imagine when its cleaned inside and out!! I will soon be uploading videos of me cleaning out a couple of crt tubes!
Interesting! Thanks for sharing your know-how!
18:18 Holy Crap! There was a big ass flash!
Greetings: FYI: Horizontal and vertical hold controls both change the respective frequencies of their circuits, but you may not have known that both controls actually set the frequencies to be slightly under that of the incoming video. That allows the derived H & V pulses to prematurely force an end to the respective cycles before they would naturally end on their own. That's why the settings of too fast and too slow freq. have different reactions as the oscillators drift past the lock points. Just a thought.
Only at the very end of the video did I realize the televisioncontent wasn't a parody of American TV... Holy shit, do they air that all the time or what?
Manny Calavera yep. Even radio doesn't seem that good now.
I remember something about the lingering dot and a selling point about eliminating it, I believe the cathode goes to ground when you turn it off ,something like that
I seem to remember recognizing the back of that model TV from episodes of Sanford and Son.
Have you tried rejuvinating the original crt before changing it? i have this exact same set & i have been using it as my daily watcher for the last 15 years with it's original crt, which i never had to rejuvinate. i did have to replace the filter caps in the power supply & the caps in the vertical circuit.
Lingering dot circuitry has been around forever.
Good show..
Try restored tube, please, as I found Sencore to do miracles
We had this same TV in my Mom's bedroom with a metal TV stand. Great TV. Had it until 1991. Is 16F25 the model number? I loved that TV.
Because of this video I just purchased a "Super Mack" tester of my own off ePay. when it arrived today it occurred to me that the thing didn't have the type 1 socket I need X.X
+shango066 would you happen to know what the pinout is so I could maybe jerry-rig something with paperclips and jumper wires from the master socket?
In Missouri we don't have Carl's Jr. We have Hardees! Interesting!
pretty much the same thing, owned by the same chain
I guess it's a toss up now of what to do, leave the new picture tube in the set, put the old and repaired tube back in, or keep the old one in storage in case you run into another set needing the same tube.
I remember a TV repairman telling that smearing of red around the face as a sign of a
Sweet fix.
I would always rejuvenate the b&w crt's and most would come right back solidly..unless it's been rejuvenated previously, then there's no more boron material to expose on the gun cathode.
4:43 The brightness control took a dump.
As time goes by replacement CRTs and electron tubes will be impossible to find making vintage electronic repair impractical. Guess that'll be true even with tube state radios and phonographs.
Looks like a good strong CRT, no lingering dot! You are indeed lucky to get it.
Nice CRT change The old CRT seemed screwy That chassis looks a lot like my 1956 21" Zenith console.
8:20 These early portables were so slim; I think they gave up on the "portable" concept for TVs with bigger screens than 12" in the '80s some time; all the sets this size stuck out a foot in the back by that time. I wrecked a set like this one when I was about 3 by sticking coins in one of those little slots; must have thought candy or something would come out. I think that little hole in the top right corner is for the standby power on the Space Command models. I've never seen a set like this with UHF, but it has the position on the dial and the knockout for antenna hookups; would the dial have stuck out the side?
No Name , some B/W tv such as 16” from 60’s appeared like flat tv !
i have a tv with far worse tube than that(teleton th14), normally it'd just be dumped, but as its dual band vhf/uhf(rare here in the uk, i think it was intended for the usa as it has green-black-white mains lead,and looks like the mains transformer was originally wired for 120v mains, now set for 220), i'd like to resurrect it, needs 340AB4 crt
After watching this, I'm convinced Dr. Oz is not of this world...
That old crt would be decent for in a bedroom set at night! from what the camera shows anyway
hey Realgroovy24
Incidentally, it's called a raster, not a roster..lol...also, you definitely need to check all the electrolitics and those old signal caps, clean the tube sockets, and all the moving pots etc..
Worked on a lot of CRT TVs in my 35 years in the service business.
Best wishes.
I don't think I've ever posted a comment telling somebody what they need to do. Especially without watching the whole video and seeing the outcome
Did you ever try to use that old Sylvania Tube again ?
Why don't you rejuve dead crt's? I know it is futile but for grins and giggles. Also saw you fix an old techtronix osc you said you didn't need. Perhaps gift it to new kids in the sport?
It looks like it's all blue
i have a 1954 zenith tv that when i plug it in it hums through speaker and no picture what is wrong?
Could be needing some tubes replacing for one?
2:46 Oh god; they're starting that again? Look forward to the next financial crisis in a few short years.
👍
I have a zenith chas# 16f25crt TV in my small collection. I've gotten all the problems fixed accept for one. (it has a really good CRT in it) it has a vertical roll problem. would you be able to help me, possibly maybe posting up a video on how to repair the problem or email me please. (the roll changes speed as it warms up)thank you for your time
+Mani Flores integrator? It looks like a disk capacitor with 3 leads, it feeds and filters the sync pulse to the vertical Multi-vibrator circuit , Very common failure, hard to find part. Have to make it
+shango066 tv works good when its cold. when it starts to roll I spray coolant on a farad radial capacitor marked .0068 x 200volt then the Tv stops rolling; until its fully warm and coolant will not change it any more. what would I need to make that 3 legged part? thank you
change that capacitor first then and see if that fixes it
+shango066 ok. I will have him try that. thank you for your time
+Mani Flores thank you for replying. we replaced the point .0068 capacitor now the tv works for 5mins while the tv warms up, that integrator with 3 leads fails when it warms up. it was great if I put coolant on it. So I figured that Is the problem, what do I need to make a new one? I appreciate any info available. thanks
CRT guns test it good but it internally short it will die again.
Anil I can't tv
seems like you are being bombarded with dumb Loan commercials like us here in England, pisses me off