01-03-2012, 02:19 PM
The RCA sets with RF decks that I have worked on had the components arranged in a manner that was easier to work on!
Terry: WOW, that is a tough one. When faced with problems like that I have found that measuring both continuity/resistance/short to ground for all the connections/components was what I had to resort to to find the problem. A Crosley 157 had a lead in the oscillator circuitry that was shorted,it went from the transformer to the tuning cap through the chassis. The reading it gave made it look like the transformer was shorted, but disconnecting both leads and re-measuring showed the transformer to have resistance. The 157 is a 10 tube cathedral with a chassis that is no larger than a 6 tube Philco, so the components are pretty crowded!
Steve: that is some good information! I will add your observations to my "bag of tricks."
Terry: WOW, that is a tough one. When faced with problems like that I have found that measuring both continuity/resistance/short to ground for all the connections/components was what I had to resort to to find the problem. A Crosley 157 had a lead in the oscillator circuitry that was shorted,it went from the transformer to the tuning cap through the chassis. The reading it gave made it look like the transformer was shorted, but disconnecting both leads and re-measuring showed the transformer to have resistance. The 157 is a 10 tube cathedral with a chassis that is no larger than a 6 tube Philco, so the components are pretty crowded!
Steve: that is some good information! I will add your observations to my "bag of tricks."
