12-02-2009, 02:19 PM
Jim,
Your test of the audio output transformer indicates that it is on the verge of failure. 160 ohms on one half and 460 ohms on the other is too much of an imbalance; it shows that the half showing 460 ohms is already failing.
You can count on buying a new audio output transformer. Typical for any 1939-42 Philco...those audio output transformers mounted under the chassis do not hold up as well as the older ones have that are mounted to the speaker.
But let's come back to that later.
Have you performed the "quick and dirty" test on the radio that I described previously? If not...please do so before going further. This should give some sort of indication of the health of your set's power transformer.
Your test of the audio output transformer indicates that it is on the verge of failure. 160 ohms on one half and 460 ohms on the other is too much of an imbalance; it shows that the half showing 460 ohms is already failing.
You can count on buying a new audio output transformer. Typical for any 1939-42 Philco...those audio output transformers mounted under the chassis do not hold up as well as the older ones have that are mounted to the speaker.
But let's come back to that later.
Have you performed the "quick and dirty" test on the radio that I described previously? If not...please do so before going further. This should give some sort of indication of the health of your set's power transformer.
--
Ron Ramirez
Ferdinand IN
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