been working on this one a while, with all the popular transistors disappearing, I
hope that this one won't go obsolete before the boards are out. I don't think so
because Fairchild has said that the bc parts should be available for at least 5 years
but onsemi said the same thing.
This one is a diamond transistor input set, used as a voltage to current converter.
A pair of Wilson current mirrors with input and output cascade as the VAS
and a triple darlington output stage.
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