|
The actual AFC diodes are selenium according to SAMS. I don't know what the effect would be if you used a different type of diode. Most notably would be the forward junction voltage: germanium - 0.3V; silicon - 0.7V; selenium - 0.95V. I suspect that leaky AFC diodes might cause the first stage of the 6CG7 to drive the oscillator way off frequency to the point of shutting down the oscillator.
Of all the AFC diodes I replaced, the only problem I observed was lousy AFC operation, never an oscillator shutdown.
Last edited by Tom9589; 12-04-2016 at 10:59 AM.
|