by Shannon Parks » Wed Jun 17, 2015 4:33 am
This would probably be A-OK, but two thoughts:
- I'd definitely re-tune the global feedback capacitor. Test with 10kHz square wave and adjust for minimum ringing.
- With the Poseidon and the 12AX7, only a single triode's heater is functioning as the circuit uses the center tap. This was done to increase life if "mirror swapping" and also to avoid possible extra noise. If noise is an issue, possibly tie the unused portions (k2, g2, & p2) of the 6SL7 triode to ground.
Shannon