05-26-2007, 11:28 AM
Certainly NOT a factory mod. Your radio has lost a stage of audio amplification by using a 47 in place of the 27 audio amp and not using the push pull 71As at all.
You could always convert it back by adding two 4 pin tube sockets where the hole covers are now at...as well as an interstage transformer, push-pull output transformer, 71A tubes, a 27 tube, undoing the modified wiring, etc.
You could always convert it back by adding two 4 pin tube sockets where the hole covers are now at...as well as an interstage transformer, push-pull output transformer, 71A tubes, a 27 tube, undoing the modified wiring, etc.
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Ron Ramirez
Ferdinand IN
