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Re: reverse the filament connection and the operating point changes

Agreed on the multiturn pot .

'To get the accurate DC balance you want (and need) - an adjustable bias balance will be needed'

Thats on the original schematic , slightly crude I know . I'm well aware about tight biasing , every amp I've built since 1999 has had a centre-reading balance meter . Just wondering : Do you derive the variable bias of your DPA amps from a negative supply or from a pot in the cathode bias circuit ?

cheers



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  • Re: reverse the filament connection and the operating point changes - fatbottle 13:54:23 01/28/07 (0)


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