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Low audio is probably one or more small electrolytic caps in audio circuits.

The chemistry used inside an aluminum electrolytic capacitor cause them to die from old age even when the mileage is low.
The advice you'll hear to "re-cap" a radio this old fixes this, no matter which ones are causing trouble now. A shotgun approach.

So long as your aim is good, this tends to fix problems all at once.

So long as all of the get turned the right way. Polarity is marked on the part for a reason.

And so long as you don't accidentally "bridge" a tiny hair of solder across the gap between foil traces.

Or, you can play electronic "whack-a-mole" and troubleshoot each symptom so you can replace just the cap that's bad.

Today.

The tuneup for a 20 year-old radio is simpler than for one twice that age or more.

73

<blockquote data-quote="nomadradio" data-source="post: 640753" data-attributes="member: 22">Low audio is probably one or more small electrolytic caps in audio circuits. The chemistry used inside an aluminum electrolytic capacitor cause them to die from old age even when the mileage is low. The advice you&#039;ll hear to &quot;re-cap&quot; a radio this old fixes this, no matter which ones are causing trouble now. A shotgun approach.So long as your aim is good, this tends to fix problems all at once. So long as all of the get turned the right way. Polarity is marked on the part for a reason. And so long as you don&#039;t accidentally &quot;bridge&quot; a tiny hair of solder across the gap between foil traces. Or, you can play electronic &quot;whack-a-mole&quot; and troubleshoot each symptom so you can replace just the cap that&#039;s bad. Today. The tuneup for a 20 year-old radio is simpler than for one twice that age or more. 73</blockquote>

[QUOTE="nomadradio, post: 640753, member: 22"] Low audio is probably one or more small electrolytic caps in audio circuits. The chemistry used inside an aluminum electrolytic capacitor cause them to die from old age even when the mileage is low. The advice you'll hear to "re-cap" a radio this old fixes this, no matter which ones are causing trouble now. A shotgun approach. So long as your aim is good, this tends to fix problems all at once. So long as all of the get turned the right way. Polarity is marked on the part for a reason. And so long as you don't accidentally "bridge" a tiny hair of solder across the gap between foil traces. Or, you can play electronic "whack-a-mole" and troubleshoot each symptom so you can replace just the cap that's bad. Today. The tuneup for a 20 year-old radio is simpler than for one twice that age or more. 73 [/QUOTE]

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