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Old 12-05-2013, 08:45 PM
radiotvnut's Avatar
radiotvnut radiotvnut is offline
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Join Date: Jul 2007
Location: Meridian, MS
Posts: 6,025
I was thinking the cabinet looked a lot like a Symphonic.

This thing had a lot of squealing and oscillation on the radio; which, was due to a defective filter capacitor that's on the B+ line that feeds the converter and IF stages. A scope check revealed junk on that line that should not have been there. After I replaced the filter cap, the squealing was gone and the junk went away.

All of the ceramic cased tubular capacitors were leaky and the AC line cap had the end blown out.

Now, I'm debating on rather or not to replace that Siemens selenium rectifier. I've got 120V coming out while under load; but, I seem to recall reading that these often give trouble in the German radios that use them.

Here is a picture of the underside of the chassis:

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