02-26-2018, 07:23 PM
If it’s the volume control, I’d expect you to find dead spots as you rotate it through its range. If you find a spot where the radio plays and gets low, move the volume control a tiny bit up and down and that should pinpoint it.
Other things to look at are tubes and grid caps. Your radio has a loctal 1232 RF amp and the sockets are prone to intermittents. A wiggle of this tube when the volume drops will prove it.
Another thing you can do is inject audio into the TV input and switch to the TV setting. This will break the radio between RF and AF sections to help narrow it down. The tuning eye will also tell you if it’s in the front end. If the eye opens when the problem happens, it’s a RF issue.
Also there is a candohm (R18) resistor that is known to be the king of static and intermittents.
http://www.nostalgiaair.org/pagesbymodel...024689.pdf
Hope this helps.
Other things to look at are tubes and grid caps. Your radio has a loctal 1232 RF amp and the sockets are prone to intermittents. A wiggle of this tube when the volume drops will prove it.
Another thing you can do is inject audio into the TV input and switch to the TV setting. This will break the radio between RF and AF sections to help narrow it down. The tuning eye will also tell you if it’s in the front end. If the eye opens when the problem happens, it’s a RF issue.
Also there is a candohm (R18) resistor that is known to be the king of static and intermittents.
http://www.nostalgiaair.org/pagesbymodel...024689.pdf
Hope this helps.
Tony
“People may not remember how fast you did a job, but they will remember how well you did it”
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