10k? from zener ~20V/10k = 2mA (tail current).
in my sim, current in R3;R4 = ~0.9mA
R5;R6 work closely to 0.9mA*2 with 11k, but thats is not standard value (E12),
voltage in R5;R6 was 19.32 Vrms (R5;R6 best with 10k7 (E96)).🙂
by the way, this is about finding the effect of making the Vas loaded with Resistor or CCS, so i'm not too concentrate on that (sorry if that make some ill).😛
CCS was replacing R18 & R19.😉
in my sim, current in R3;R4 = ~0.9mA
R5;R6 work closely to 0.9mA*2 with 11k, but thats is not standard value (E12),
voltage in R5;R6 was 19.32 Vrms (R5;R6 best with 10k7 (E96)).🙂
by the way, this is about finding the effect of making the Vas loaded with Resistor or CCS, so i'm not too concentrate on that (sorry if that make some ill).😛
CCS was replacing R18 & R19.😉
OK, now with better LTP balance...
before we add CCS, 2nd order harmonic distortion is 0.176673%
after CCS added, 2nd order harmonic distortion is 0.0820545% (this one cancel the distortion isn't it?😕)
thanks Andrew..
regards😀
An externally hosted image should be here but it was not working when we last tested it.
before we add CCS, 2nd order harmonic distortion is 0.176673%
after CCS added, 2nd order harmonic distortion is 0.0820545% (this one cancel the distortion isn't it?😕)
thanks Andrew..
regards😀
- Status
- Not open for further replies.