Glenn Croft MM Phonostage capacitance loading

[Wakefield Turntables]

Guys, I bought Len Gregory's old Croft MM phonostage that he used to voice his range of cartridges. I'm in the process of critically assessing a couple of old Shure Carts on my system and I'm trying to fine tune capacitance loading. Does anyone have an idea of what capacitance loading Glenn used to design into his phonostages? I have no way of changing capacitance on his phonostage but would like an idea of what capacitance load my MM carts are, "seeing".

[Firebottle]

IME the capacitance is that of the input coax and the miller capacitance of the first valve.

I would guess about 100pF. Hope that helps.

[Jimbo]

IME the capacitance is that of the input coax and the miller capacitance of the first valve.

I would guess about 100pF. Hope that helps.

That seems to ring a bell Alan:cool: