[Amps] Life and gain of 3-500Z

[Phil Clements]

> > Lower mu generally indicates higher input impedance, more
> > negative feedback, and less gain in a g-g amplifier. In a
> > g-g amp gain is mostly determine by the ratio of load
> > impedance to driving impedance, and higher mu tubes
> > generally have a lower cathode drive impedance.

Assuming it is correct that the Chinese tubes are higher mu, and higher gain
than an Eimac, the zsac would be higher, and the input vswr would change,
with the same HV and bias voltages applied?

(((73)))
Phil Clements, K5PC