DaveP said:Can anyone throw any light on why one end of the OPT primary is connected to the cathode of V3 rather than ground?
The cathode resistor is not by-passed, does this type of connection get around the resulting higher internal resistance?
I'm very rusty on thinking this stuff through so: Would it not, as far as the transformer in concerned, act as if the cathode were bypassed without having to actually use a bypass cap?
The cathode is really the reference the input signal wiggles around not ground after all. Hmmm?