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R41 and R42

PostPosted: Mon Jul 20, 2015 8:26 pm
by jetpack
Could someone please tell me the purpose of these two 100 Ohm resistors that bridge each side of the filament heaters to ground? Thanks!

Re: R41 and R42

PostPosted: Mon Jul 20, 2015 10:17 pm
by battradio
It is for hum balance on the filaments , if you don't have center tapped filament winding's .