very cool stuff
nice to have the tools to measure it with too huh?

Doug

"Brian" wrote in message
om...
I hooked up my HP 141T/8552B/8556A spectrum analyzer to the push-pull
6V6 amp today and measured the following harmonic levels at 10 volts
P-P output (1.5 watts) into 8 ohms:

2nd 3rd
feedback -64 -52 dB
no feedback -55 -48

So not only does the unusual feedback path increase the overall gain 3
dB, it lowers the distortion.

Brian