In Reply to: Are filaments in series or parallel in 845 monoblocs?? posted by Da1 on November 12, 2006 at 07:11:14:
Hi Drew,The filaments in a 12AX7 are 12.6V with the ends on pins 4 & 5 and a centre tap on pin 9. A 7058 uses a filament voltage of 13.5V also on pins 4 & 5 but without the centre tap but you probably already knew this. It should work OK, especially since most of these amps output slightly high filament voltages anyway.
How's you amp going?
Rgds,
Naz
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Follow Ups
- Re: Are filaments in series or parallel in 845 monoblocs?? - Naz 20:08:38 11/13/06 (0)