In article .com,
"Andre Jute" wrote:

The "KISS Amp WE300B SE Ultrafi" (1) has been finalized. This is a
project that was designed step by step on rec.audio.tubes. The
amplifier is single-ended, zero negative feedback, built with Western
Electric signal and power tubes and a Mullard tube rectifier. There are
(counting by the Gaincard method which leaves the attenuator and power
supply out of the count!) six components in the signal path: 3
resistors, a cap and two tubes.

Hi Andre,

Can you explain in more detail the "Gaincard method" of counting
components in the signal path? Ignoring the fact that you don't seem to
be including the output transformer in your count, I still can't
duplicate your count for the "KISS Amp WE300B SE Ultrafi"

In any case, six components give or take for the signal to pass through
sounds like too many for good sonics. In my "7119 PP Potato 2 Minimal"
amp the signal passes through only two components depending on exactly
how you count.

It is a truly silent amplifier (It
sacrifices half the power for that silence) and in particular the
output is free of any odd harmonics.

What is the power output of your "KISS Amp WE300B SE Ultrafi"?

The circuit with a single WE 417A
tube doing both input and driver duty is at:
http://members.lycos.co.uk/fiultra/T...trafi-crct.jpg


Regards,

John Byrns

--
Surf my web pages at, http://fmamradios.com/