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And I suspect this is the Transformer at the input to allow low impedance feedback but still maintain high impedance (relatively speaking) at the input.
Or maybe an output transformer with source feedback

Do not tease, tell us more.
Alas I don't have more information. I meant to go back
and check it out further, but somehow neglected to. 🙁
Dennis
F7 at BAF was early prototype that is not the end product, although it's a
perfectly nice amplifier. It's just that I had a nice insight into something
when I was playing with the original and decided that it was too good not
to use.
I have the boards for the final version, and I plan to get one off to Srajan
and another to Dick Olsher so that they can get a jump on the release.
Just so Greedy Boyz know, this is not going to be a DIY like the F6.
😎
perfectly nice amplifier. It's just that I had a nice insight into something
when I was playing with the original and decided that it was too good not
to use.
I have the boards for the final version, and I plan to get one off to Srajan
and another to Dick Olsher so that they can get a jump on the release.
Just so Greedy Boyz know, this is not going to be a DIY like the F6.
😎
I knew this because you have not discussed it at all on this forum but the "insight" you speak of is interesting and I am sure you will talk about it in your advertising to sell them.
Fascinating to me but I was not expecting a circuit until the sales have run their course.
I really am anxiously awaiting the SE V-Fet circuit you have promised and would like to know how much it will sound like the SIT you sell at Firstwatt. Will the sound be close?
Fascinating to me but I was not expecting a circuit until the sales have run their course.
I really am anxiously awaiting the SE V-Fet circuit you have promised and would like to know how much it will sound like the SIT you sell at Firstwatt. Will the sound be close?
I really am anxiously awaiting the SE V-Fet circuit
I think the hockey puck amp may potentially be better or at least equal.
A choke loaded SE Sony Vfet Amp would be nice.
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Dick Olsher is in possession of an F7 amp.
Who is going to be first Dick or Srajan? Lay your bets.
No pressure Srajan.

Hahahaha
Who is going to be first Dick or Srajan? Lay your bets.
No pressure Srajan.

Hahahaha
Dick has an older prototype.
The only "current" version is here, going through listening tests.
😎
The only "current" version is here, going through listening tests.
😎
Dick has an older prototype.
The only "current" version is here, going through listening tests.
😎
I bet Srajan had his hitman knocking on the door for a moment there.
Hahahaha
Dick has an older prototype.
The only "current" version is here, going through listening tests.
Good news, Srajan. Revised F7 passed listening tests.
I'll start finishing yours tomorrow.
😎
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