John Byrns wrote:


I don't see how the "buffer" in the GE circuit makes any difference at
all, S-W simply make the RF and IF tubes do double duty, serving as a
"buffer" in addition to their normal functions. The buffering aspect
seems to work in an identical fashion to the dedicated "buffer" in the
GE radio.

There is no need for the filter caps on the primary in the GE version -
as the tube eliminates any posibility of ripple from the reactor getting
into the B+ - as is the case with the S/W. Also by using a tube - GE
can independantly control the saturation curve, direction (inverted from
b+, for instance) or by using agc directly, etc., etc. Lots of
variables introduced by using that buffer tube.

best regards...
--
randy guttery

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