Keith G wrote:
Having *fixed* the 'high end' 300B SET monos:

http://www.apah69.dsl.pipex.com/show/BothAmps.JPG

http://www.apah69.dsl.pipex.com/show/Together.JPG


...earlier today, I have had a very good opportunity to compare them
with my POS Chinese 300B SET stereo amp:

http://www.apah69.dsl.pipex.com/myhifi/Bez%20T3B-3.JPG


...and I'm sorry to say the Chinky knocks the crap out of them!! (More
if anyone is interested...)

But that's not important....

What is important is that they are (and, I suspect, always have been)
*out of phase* with each other!! And no, before you ask, there's no way
I got the I/P signal wire twisted up!!

Larf? Do ewe not hafta...??

:-)

If their new owner disagrees with me I will post a retraction (or say
so) here, but I'm *pretty certain* - which is a seriously big shame if
it means my little friend who bought the amps originally never heard
them in phase...??



One of the many benefits of overall negative feedback in a valve amp is
that it ensures you get the output transformer phased right. With no
overall NF on these amps, they will work equally well either way round.
There's no excuse for sloppy manufacture, but at least with NF, it would
never have left the factory like that. (assuming of course that they
were tested at all)

S.

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