VSSA Circlotron

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I used my application to realize 16 187 040 simulations :)

Results:

1) increase the 100ohm R to ground increases the distortion, I vary from 100 to 1000 in steps of 100
2) decrease the quiescent current of the input stage decreases the distortion, I vary from 2 to 2.6 in steps of 0.2
3) the distortion is lower when the VAS has a very low current OR very high (2ma vs 15mA)
4) Generally distortion decreases with the increase of mosfet current, at 1w as at 100W, except at mid power ...

0.03% THD 10khz 100W 4ohm
0.0005% THD 10Khz 1w 8ohm
 
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