12-30-2013, 11:31 AM
Sounds like the oscillator coil might be bad! Common problem!! Also the 36 tube can be finicky!!
I am working on a later variant of the 91 (6A7, etc..), and three of the transformers were open!!
I am working on a later variant of the 91 (6A7, etc..), and three of the transformers were open!!