Quote:
Originally Posted by jcmjmp
JCM 800 and 1959/1987 both had solid state rectifiers AND a choke. The choke contributes to limiting sag but not in the same way as a rectifier or filter capacitors. The chokes attempts to keep the current steady. That's not the same thing as what the rectifier or filter caps try to do.
Voltage sag can contribute to the overall compression of the amp at high volume. A proper choke will keep current demand high, which in turn can contribute to sag wen the amp is pushed hard.
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These amps are not known for their sag.
As I said, choke contributes to limiting sag/looseness in the screen and preamp. I've installed chokes into amps that previously used resistor chokes, and it's a big difference.
I also pointed out that a valve rectifier has a greater effect on sag as it contributes to the power valves as well, but I'm not sure what your point is here. Are you trying to say what I've said is incorrect?
You last sentence doesn't make sense?
