The planned push pull amplifier to drive the downstairs system. Using knowledge from ETF 2006, I have drawn my loadline in green 5k my operating point is the blue lines. In class A push pull Triode that becomes 15 Watts.

The SE circuit at ETF was a vry clever design see if you can spot the feedback.

My design will be more Williamson as it has to be PP.

Im not known for PP but I made a nice PP amp se to a phase splitting interstage then PP. this was the best of both worlds.

What worries me about Pp all through is you end up with odd order harmonics only. Yuk.


I hope thouh that if a pentode voktage amp input used the odd order distortion there out of phase with the outputs will mitigate the uncacelled by push pull topology distortion.

But I fear PP because usually I dont like its sound.

But the only other way to power the downstairs speakers is to build my V1505 amplifier again with these babies.







hd pic upload