01-11-2013, 03:52 PM
My first suspect would be a bad RF coil, and I would look first at (7) or (10).
http://www.philcoradio.com/tech/images/20b.jpg
If you have access to a multimeter, measure the voltage between the plate and ground of the first two 24 RF amp tubes. I would bet one - or even both - have no plate voltage due to a defective coil or coils.
http://www.philcoradio.com/tech/images/20b.jpg
If you have access to a multimeter, measure the voltage between the plate and ground of the first two 24 RF amp tubes. I would bet one - or even both - have no plate voltage due to a defective coil or coils.
--
Ron Ramirez
Ferdinand IN
