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Old 5th Jun 2021, 3:53 pm   #1
sweepthedog
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Default Silvertone 6179 Radio Repair

Hi Everyone,

Here is a link to the thread

https://www.vintage-radio.net/forum/...d.php?t=180540

Basically I got a US silvertone streamlined midget radio for display, it was sold as electronically untested (Crackled but no reception) in the States, albeit it does look like it was restored recently. I tried it here but stupidly introduced it to UK voltage (240v) and no doubt may have burnt out some resistors/bulbs.
I am wondering if anyone with experience with radio sets, specifically US ones could give it a test and replace any fried components? Ideally, I would like it to stay as original as possible as the valves are dated 1939.

I like in York, North Yorkshire.


Cheers!
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Old 7th Jun 2021, 1:11 pm   #2
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Default Re: Silvertone 6179 Radio Repair

If you don't find anyone nearer you're welcome to send it to me, preferably minus the cabinet. Plastic cases don't travel well!

I'll warn you though that if you have burnt out the valve heaters the bill for new valves could be expensive.
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Old 7th Jun 2021, 6:18 pm   #3
sweepthedog
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Default Re: Silvertone 6179 Radio Repair

I understand new valves are expensive and hard to find, so I would only want the bulb circuit replacing in that instance, especially as the valves are dated back to 1939 so would be a shame to lose them.
The valve heaters hopefully could have taken UK voltage for a couple of seconds moreso than the bulb or resistors.
Am I right in thinking a burnt out/failed resistor would stop the circuit to the valves and protect them if it was to fail first?

Thanks
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Old 7th Jun 2021, 7:18 pm   #4
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Default Re: Silvertone 6179 Radio Repair

Quote:
Originally Posted by sweepthedog View Post
Am I right in thinking a burnt out/failed resistor would stop the circuit to the valves and protect them if it was to fail first?

Thanks
Quite honestly I wouldn't like to say, it's possible just one valve's heater has blown. It's easy enough to test valve heaters for continuity using a Digital Multimeter (DMM) on ohms range. I'm sure someone could talk you through doing this test if you ask in your original thread.

Replacing valves, lamps and or dropper resistors isn't going to get this radio working, but the fact the speaker crackles is good news.

The bulb won't illuminate unless the valve heaters and the dropper resistors are good, but it doesn't follow that the valve heaters are bad.
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Old 7th Jun 2021, 7:37 pm   #5
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Default Re: Silvertone 6179 Radio Repair

Hi Graham

It doesn't crackle its completely dead so its mystery what it is.
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Old 7th Jun 2021, 7:45 pm   #6
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Default Re: Silvertone 6179 Radio Repair

I thought the seller said it crackled?
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Old 7th Jun 2021, 7:46 pm   #7
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Default Re: Silvertone 6179 Radio Repair

Back in the states but it never once crackled here in the few seconds the light was on etc.
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Old 7th Jun 2021, 7:52 pm   #8
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Default Re: Silvertone 6179 Radio Repair

It wouldn't have crackled because the valves wouldn't have had time to warm up.
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Old 7th Jun 2021, 8:12 pm   #9
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Default Re: Silvertone 6179 Radio Repair

Oh right, I am very ignorant with radios! Haha

So in that case the excess voltage might not have had long enough to damage them if they need to warm up

And hopefully a blown resistor or whatever is the only problem.

How long do they take to warm up?

Thanks
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Old 7th Jun 2021, 8:24 pm   #10
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Default Re: Silvertone 6179 Radio Repair

This discussion will get us nowhere. It's all guess work and speculation.

You need to test the valve heaters yourself or find someone to do it for you.
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Old 8th Jun 2021, 4:49 pm   #11
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Default Re: Silvertone 6179 Radio Repair

Thanks. Is there anyone else near Yorkshire?
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Old 11th Jun 2021, 5:04 pm   #12
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Default Re: Silvertone 6179 Radio Repair

The OP appears to have found a repairer, so I'll close this thread.
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