theoretical formula
Related to Aleph 2 circuit diagram:
(R22/R40)*(R20/R21) = current gain factor of the CCS.
in case of Aleph 2 its 0.69.
Factor 0.5 -> pure classA
Factor 1 -> theoretical limit before oszillation.
Try 0.9 - 0.95 by changing R21 to ~510R without changing
anything else.
EXCEPT: R19 -> 18k - 22k. (influences idle current)
It is a good starting point: ~ 1A Bias, about 10A - 12A peak
As I said its theoretical, try at your own risk!
Uli
Related to Aleph 2 circuit diagram:
(R22/R40)*(R20/R21) = current gain factor of the CCS.
in case of Aleph 2 its 0.69.
Factor 0.5 -> pure classA
Factor 1 -> theoretical limit before oszillation.
Try 0.9 - 0.95 by changing R21 to ~510R without changing
anything else.
EXCEPT: R19 -> 18k - 22k. (influences idle current)
It is a good starting point: ~ 1A Bias, about 10A - 12A peak
As I said its theoretical, try at your own risk!
Uli
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