I really enjoy your informative videos. I have a question. I have a RCA model G25189TK television. I'm using a multipurpose remote as the set didn't come with one. I can't change settings other than on/off, channel and voluem. The set swiks fine but I have to use the 75 ohm antenna lead for input. The set does have the 3 jack audio/video system, but I can't access it. Without it, I can't get stereo output. DO YOU HAVE ANY IDEAS HOW i CAN ACCESS THE JACK INPUTS? Suggestions would be appreciated.
@retrochad Thanks for the reply. My set only has channel up and down buttons. I can't get it to go up past channel 68. It then returns to channel 2. I have a satilite system so I don't use the tuner. It works on channel 3. I'd prefer to use my satilite box and DVD player through the direct inpus instead of the rf antenna. If you know of any other way to change the inputs, Please let me know. Thanks again for the suggestion.
I was thinking about making a joke about you getting a new tv also, being that this video was done a few days prior to black Friday, but see someone beat me to it. I mean the set is 43 yrs old. lol. It's all about a love for vintage though and we fellow vintage lovers understand. Great job on the repair and video, as usual. Thanks for posting it Chad.
@1112223333111 Yes I have worked on equipment from where there was a lot of cigarette smoke...the Leslie speaker amp was the most recent one. Everything was covered with a black film of nicotine and tar.
@1112223333111 Also I blew out all of the dust with an air compressor, that can really help clean things up. Fortunately there did not look like there was nicotine and tar on this one.
@Lockemeister I don't watch all that much TV either but I really am interested in the technology of TV. We do watch DVD's of some of our favorite shows like Dallas and Star Trek Voyager.
Nice work, Chad. Could you do a video sometime on how you diagnose problems like these in greater detail? It is something I've never been particularly good at...
@TheOregonRedneck Sometime I will try to but it takes a lot of time since I am using an analog dub out of the camera, I have to play back the video in real time to get it into the computer and it takes up time I can be working on things. Usually I like to compromise and show the most important parts so this makes the time making the videos not so long.
Excellent job, Retrochad. You're not one to compromise on safety, that's for sure!! I suspect that component values in the IF circuit can drift with age and heat, requiring periodic readjustment. My parents had sets like this, and would frequently have the TV repairman come out to our house and make some general adjustments/repairs to our color TV. Sets of this era were notorious for falling out of adjustment.
Could someone park outside your house in 1967 and either add IF in a monitor van and see what your watching or pick up a tone of what chasnnel your watching at least?
@1112223333111 These squiggles act as filter chokes and are on the filament supply to the tubes. They help keep RF signals out of the filament supply system.
In countries where radios and TV's require licenses to be paid like in England, they did use mobile vans to try and detect the RF radiation from the oscillators in superhetrodyne sets to catch people who hadn't paid their licence fees. I'm not sure if they do this any more though.
@pvx I'm not sure exactly...maybe to filter out AC pulses? The RCA service manual recommends using the cap this way in their directions for measuring the cathode current.
@redneckbryon Yes it is possible to convert a black and white TV to color by using a color wheel in front of it and circuitry to control it...if you search google for the early television museum there are examples of this technology there.
@xmaddict No, but I know about that system. What I'm talking about is using a colored plastic wheel with red, green and blue which spins in front of a black and white picture tube to produce a color picture. The Early Television museum in Columbus Ohio has a demonstration of this system and it really does produce good color.
@retrochad Yes, I know what you are talking about. This was the technology that inventors were trying to replace B&W with. Downside it wasn't compatible with B&W (when recorded in color) and it was very noisy and wasn't practical.
@redneckbryon You could remove the B&W chassis and tube and replace it with a color one......but I think the picture tube and the color decoder is totally different.
I really enjoy your informative videos. I have a question. I have a RCA model G25189TK television. I'm using a multipurpose remote as the set didn't come with one. I can't change settings other than on/off, channel and voluem. The set swiks fine but I have to use the 75 ohm antenna lead for input. The set does have the 3 jack audio/video system, but I can't access it. Without it, I can't get stereo output. DO YOU HAVE ANY IDEAS HOW i CAN ACCESS THE JACK INPUTS? Suggestions would be appreciated.
youthnotlost 1 year ago
@youthnotlost On some RCA sets the audio/video inputs can be accessed by tuning to channel 91.
retrochad 1 year ago
@retrochad Thanks for the reply. My set only has channel up and down buttons. I can't get it to go up past channel 68. It then returns to channel 2. I have a satilite system so I don't use the tuner. It works on channel 3. I'd prefer to use my satilite box and DVD player through the direct inpus instead of the rf antenna. If you know of any other way to change the inputs, Please let me know. Thanks again for the suggestion.
youthnotlost 1 year ago
I was thinking about making a joke about you getting a new tv also, being that this video was done a few days prior to black Friday, but see someone beat me to it. I mean the set is 43 yrs old. lol. It's all about a love for vintage though and we fellow vintage lovers understand. Great job on the repair and video, as usual. Thanks for posting it Chad.
MrAAA3330 1 year ago
This set looks very clean, do you work on sets from a smoker?
They are nasty inside.
1112223333111 1 year ago
@1112223333111 Yes I have worked on equipment from where there was a lot of cigarette smoke...the Leslie speaker amp was the most recent one. Everything was covered with a black film of nicotine and tar.
retrochad 1 year ago
@1112223333111 Also I blew out all of the dust with an air compressor, that can really help clean things up. Fortunately there did not look like there was nicotine and tar on this one.
retrochad 1 year ago
wow neat Chad
starlite2991 1 year ago
I have to ask, what the heck was on TV at 5:45 ish
weasel2htm 1 year ago
So you're not going to go Kohling at 3:00 AM? What's going to happen to the economy?
We must support Black Friday!!!
I love retro TV's. I wish had had space for one. Too bad nothing much on TV to watch!
Lockemeister 1 year ago
@Lockemeister I don't watch all that much TV either but I really am interested in the technology of TV. We do watch DVD's of some of our favorite shows like Dallas and Star Trek Voyager.
retrochad 1 year ago
3 AM vintage electronics sale might be up my alley LOL
jefferyb304 1 year ago
Nice work, Chad. Could you do a video sometime on how you diagnose problems like these in greater detail? It is something I've never been particularly good at...
chickenofsea 1 year ago
@TheOregonRedneck Sometime I will try to but it takes a lot of time since I am using an analog dub out of the camera, I have to play back the video in real time to get it into the computer and it takes up time I can be working on things. Usually I like to compromise and show the most important parts so this makes the time making the videos not so long.
retrochad 1 year ago
Excellent job, Retrochad. You're not one to compromise on safety, that's for sure!! I suspect that component values in the IF circuit can drift with age and heat, requiring periodic readjustment. My parents had sets like this, and would frequently have the TV repairman come out to our house and make some general adjustments/repairs to our color TV. Sets of this era were notorious for falling out of adjustment.
HardKnocks60 1 year ago
1:51 what's this squiggle antenna?
Could someone park outside your house in 1967 and either add IF in a monitor van and see what your watching or pick up a tone of what chasnnel your watching at least?
1112223333111 1 year ago
@1112223333111 These squiggles act as filter chokes and are on the filament supply to the tubes. They help keep RF signals out of the filament supply system.
In countries where radios and TV's require licenses to be paid like in England, they did use mobile vans to try and detect the RF radiation from the oscillators in superhetrodyne sets to catch people who hadn't paid their licence fees. I'm not sure if they do this any more though.
retrochad 1 year ago
@retrochad nice.
I enjoy your videos, hope you keep warm this winter.
Chris
1112223333111 1 year ago
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1112223333111 1 year ago
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1112223333111 1 year ago
Black Friday is overrated!
craig1974 1 year ago
Just curious, what is the purpose of having the .47 ufd cap in parallel across the milliammeter?
pvx 1 year ago
@pvx I'm not sure exactly...maybe to filter out AC pulses? The RCA service manual recommends using the cap this way in their directions for measuring the cathode current.
retrochad 1 year ago
@retrochad Ok, that would make sense, an "AC block" of sorts. Tnx for the info.
pvx 1 year ago
LOL - I'll be snug in my bed too :)
Nice job on the repairs and good luck tweaking it.
bandersentv 1 year ago
Is it fixley possible to change a black and white TV to color?
redneckbryon 1 year ago
@redneckbryon Yes it is possible to convert a black and white TV to color by using a color wheel in front of it and circuitry to control it...if you search google for the early television museum there are examples of this technology there.
retrochad 1 year ago
@retrochad Are you referring to the mechanical Baird TV system?
xmaddict 1 year ago
@xmaddict No, but I know about that system. What I'm talking about is using a colored plastic wheel with red, green and blue which spins in front of a black and white picture tube to produce a color picture. The Early Television museum in Columbus Ohio has a demonstration of this system and it really does produce good color.
retrochad 1 year ago
@retrochad Yes, I know what you are talking about. This was the technology that inventors were trying to replace B&W with. Downside it wasn't compatible with B&W (when recorded in color) and it was very noisy and wasn't practical.
xmaddict 1 year ago
@redneckbryon You could remove the B&W chassis and tube and replace it with a color one......but I think the picture tube and the color decoder is totally different.
1112223333111 1 year ago
Looks like it's coming along nicely. Looking forward to more updates.
eskiewolf76 1 year ago