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 Post subject: GE Superadio I volume
PostPosted: Dec Sun 18, 2016 12:51 am 
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Volume on a GE Superadio I, when turning the knob "squelches", otherwise works okay.
Could the the volume knob be going bad, or already is?

Don't have this radio, looking at a description for what seems an otherwise OK radio.
I don't work on them, thought I'd ask here, thanks for any input on this.

Regards,
Kerry


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 Post subject: Re: GE Superadio I volume
PostPosted: Dec Sun 18, 2016 1:08 am 
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Location: SoCal, 91387
Could be almost anything; volume pot, capacitor, audio Transistor. If you don't work on solid state electronics, I would pass on it.

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 Post subject: Re: GE Superadio I volume
PostPosted: Dec Sun 18, 2016 1:12 am 
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That happens to my SR-1 when the batteries are going flat...

I would suspect that a coupling capacitor may be bad and is biasing a stage when it should be passing signal.

However, the "radio" chip has been known to do funky things when it begins to fail. My SR-2 chip failed. These chips may be hard to find. I used a socket when I replaced it...

If you take an SR-1 apart, be careful of the on/off switch, it is easily broken during disassembly.

BTW the SR-1 is getting on in years, replacing all the electrolytic caps may be a good thing...

This site is dedicated to the Super-Radio:

http://earmark.net/gesr/

Chas

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 Post subject: Re: GE Superadio I volume
PostPosted: Dec Mon 19, 2016 1:24 am 
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Thank you Fifties & Chaz, I did pass on it, but was able to pick up a GE 7-2881C, not considered one of the Superadios, nicknamed the SR "Cub", seems no tuned RFs but read that these can be close in performance as far as AM dxing.

Will see how it does once it comes in!


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 Post subject: Re: GE Superadio I volume
PostPosted: Dec Mon 19, 2016 2:23 am 
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That's a new one on me and interesting; sure looks similar to a Super Radio!

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 Post subject: Re: GE Superadio I volume
PostPosted: Dec Tue 20, 2016 5:47 am 
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Yes it does, looking forward to trying it.


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 Post subject: Re: GE Superadio I volume
PostPosted: Dec Thu 22, 2016 7:53 pm 
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Here's a nice review of the GE 7-2881C:
http://herculodge.typepad.com/herculodg ... o-cub.html

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RIP:Curt Reed, Alan Douglas, "oldradiospook", & "Bigbandsman"


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 Post subject: Re: GE Superadio I volume
PostPosted: Jan Tue 10, 2017 11:05 pm 
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John, thanks for the review.
I've had a Cub for several years and haven't seen much info on it? I think it is a good performer.
I also own several SR I, II,& IIIs.

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Joe

It's probably just a bad tube or something?
If it has a short, can you make it longer?


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 Post subject: Re: GE Superadio I volume
PostPosted: Jan Fri 13, 2017 7:28 pm 
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You're welcome, Joe. In the past I've owned two SR III's, and currently have an SR II. Never owned a Cub. Maybe some day.

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RIP:Curt Reed, Alan Douglas, "oldradiospook", & "Bigbandsman"


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