[quote author="ChuckD"]
Also I was thinking of using the second switch to switch C8 output cap between the 1uF (C24 value) and 0.5uF (C12 value). [/quote]
Meh, I'm not sure if this is worthwhile really. Try either and see if you notice much difference.
I'd maybe set the pad cleverly so as to reduce the gain of the triode stage in order to give more headroom for really loud sources, otherwise a preamp pad is just as effective. Depends how many poles your switch has as you don't want to upset the balance between the chosen anode and cathode resistor values.
Roddy
Also I was thinking of using the second switch to switch C8 output cap between the 1uF (C24 value) and 0.5uF (C12 value). [/quote]
Meh, I'm not sure if this is worthwhile really. Try either and see if you notice much difference.
I'd maybe set the pad cleverly so as to reduce the gain of the triode stage in order to give more headroom for really loud sources, otherwise a preamp pad is just as effective. Depends how many poles your switch has as you don't want to upset the balance between the chosen anode and cathode resistor values.
Roddy