Quote:
Originally Posted by mhennessy
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The gain is on the high side because the bass control network was left unconnected - it is a loss network. If you set R8 to 0k (bass at min) and join R9 to the collector of Q5, you should find the gain is nearer to 45dB.
It must have taken a while to arrive at the resistors that have replaced RV3. I admit that I lack patience with Spice
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Indeed! The gain is in that case is 43.6dB!
Putting in pots and stepping through their values for the tone control is a lot more time consuming.
I concentrated on the DC voltages.
Finding RV3 value was not bad, only about three iteration.
Peter