01-21-2014, 11:21 AM
My last two restoration projects in a row (not Philcos) had shorts in the tuning caps. FWIW, I found that a long, thin, wedge-shaped piece of card stock (a 5 X 7 file card) worked best to find the shorts. You do have to wiggle them around a lot. In one case that was enough to clear one of the short, some conductive grime, I suppose., but there was another that was harder to find.
I used a beeping ohm meter to help locate the short, radio off. Tune the cap to the very first point the meter beeps, then probe around with the paper. Be sure to probe on BOTH sides of each vane (or whatever they're called.)
In both cases, I eventually had to remove the tuning caps from the radios to get to the lower-most points that could be shorted.
I used a beeping ohm meter to help locate the short, radio off. Tune the cap to the very first point the meter beeps, then probe around with the paper. Be sure to probe on BOTH sides of each vane (or whatever they're called.)
In both cases, I eventually had to remove the tuning caps from the radios to get to the lower-most points that could be shorted.
John Honeycutt
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