Quote:
Originally Posted by dieseljeep
In the 1938 model Philco's, the rectifier socket was on top of the transformer. It made the change a lot harder.
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Fortunately the 42-1009 tube has a chassis socket. A friend has a 37-650 and that may be a case where a 5Y4 must be used. I hope that by not needlessly using a 5Y4, there will be more for others.
, they seem to be rare. Thanks for the heads up~!