Re: Nikko Preamps, etc.
Radu Bogdan Dicher
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Thank you both.
Interestingly enough, it mirrors part of the modification I've made to the Triode Electronics board I have in my Dynaco MKIII monoblocks - namely, in my case, a cascode MOSFET CCS far more linearly loading the long tail pair pre-driver to the PP finals. It's been so long since I put this together it completely slipped my mind (in all honesty, I need to spend more time reading the schematic to get all this - thank you Bob for expanding on the details of the circuit). I enclose the schematic for my monoblocks for reference.
If anyone can point to (a source of) Marsh' article in AA, I'd love to see it. I'll try to locate it too.
I guess then the pot is to be adjusted to null the DC balance on the PP as seen at the output of the stage - thank you Herb for clarity. I'll measure what DC I see on there first, to calibrate the effort.
On Wed, Mar 11, 2020 at 2:49 PM newaag via Groups.Io <email@example.com> wrote:
Yes, Herb is right, that is a common amplifier adjustment as well for 0 DC at the output.