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  #1  
Old 04-30-2014, 12:08 AM
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Boobtubeman Boobtubeman is offline
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Turntable power switch stuck on? or does the turntable not control power in this unit?

SR
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Old 04-30-2014, 07:15 AM
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Originally Posted by Boobtubeman View Post
Turntable power switch stuck on? or does the turntable not control power in this unit?

SR
The TV has a turntable power knob and the radio has it's own turntable power knob as well. But the radio uses the TV's audio circuit to get sound to the speaker and gets its power through the TV chassis as well.

At first I just turned on the television. Once I was sure there was no smoke and had a decent picture and a little sound, I turned on the radio knob. The picture faded to black and the TV sound cut out. But the radio showed no signs of life. Turning off the radio knob restored the picture and TV sound to the set.

So I turned back on the radio knob, TV faded to black and TV sound cut out again. I then turned off the TV knob with the radio knob still in the on position. This brought the radio to life, but once it got power to the radio, turning both knobs off does not kill power to the entire set. The picture tube and TV sound stay off but the radio chassis and some tubes in the TV chassis stay on. It's like it's stuck in radio mode.

So with both knobs off, some TV tubes lit, radio dial lights on, no picture, no TV audio no radio audio.

With both knobs on I seem to get the same condition as above.

With TV knob on and radio knob off TV seems to function fine but radio dial lights still on.

With TV knob off and radio knob on radio seems to function okay.

I am going to insert a shorting plug into the radio socket and just work on the TV once I get a replacement tuner.
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Last edited by bigaudioal; 04-30-2014 at 07:26 AM.
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Old 04-30-2014, 08:04 AM
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M3-SRT8 M3-SRT8 is offline
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I would keep the original tuner. Just get the channel strips from a donor set and snap them into place, tuning slugs and all.
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Old 04-30-2014, 09:19 AM
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I would keep the original tuner. Just get the channel strips from a donor set and snap them into place, tuning slugs and all.
That is the plan!

I am actually very excited. If this were just a TV, I'd be in really good shape with that kind of first power up.
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Old 04-30-2014, 10:23 AM
dieseljeep dieseljeep is offline
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I would keep the original tuner. Just get the channel strips from a donor set and snap them into place, tuning slugs and all.
Does the set have a Q series tuner, or a G series?
The Q uses a 6BQ7 RF amp. The G series uses a 6AG5.
IIRC, the Q series came out in late 1951.
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Old 04-30-2014, 10:41 AM
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Mine is an "F" series tuner. 6CB6 RF Amp. Kevin offered his "Q" series to me and then realized that it probably would not work.
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Old 04-30-2014, 10:51 AM
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Either I am very lucky or EVERYTHING is on eBay. Just scored a "F" series Admiral tuner for $12! Pics show the underside of the turret and the channels are marked, 8F, 9F, 10F . . . etc. Same as mine. Same number of contacts for each channel. Think I am in business!!!
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Old 04-30-2014, 12:29 PM
dieseljeep dieseljeep is offline
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Either I am very lucky or EVERYTHING is on eBay. Just scored a "F" series Admiral tuner for $12! Pics show the underside of the turret and the channels are marked, 8F, 9F, 10F . . . etc. Same as mine. Same number of contacts for each channel. Think I am in business!!!
It's been ages since I worked on one of those. Forgot about the F series.
I'd be tempted to try the Q series tuner. It's a little hotter! Same IF frequency.
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