|
Audio Asylum Thread Printer Get a view of an entire thread on one page |
For Sale Ads |
82.44.163.8
In Reply to: reverse the filament connection and the operating point changes posted by Allen Wright on January 27, 2007 at 04:43:07:
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
Follow Ups:
This post is made possible by the generous support of people like you and our sponsors: