A better mic preamp
Fred Bartoli wrote:
Winfield Hill a écrit :
Eeyore wrote...
In response to various posts please find attached a mic amp
which has seen volume production in commercial equipment.
Feel free to ask any questions / criticise whatever.
Graham
Content-Type: image/jpeg; "mic amp.jpg"
It's nice to see the diff-pair currents going directly to
the output opamp, with it's 6.8k resistors. But why'd ya
steal away loop gain so aggressively by choosing 680-ohms?
The opamp has not enough distorsion to his taste maybe.
IDIOT.
Graham
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