R41 and R42

a DIY, modified Mullard 5-20 monoblock design

R41 and R42

Postby jetpack » Mon Jul 20, 2015 8:26 pm

Could someone please tell me the purpose of these two 100 Ohm resistors that bridge each side of the filament heaters to ground? Thanks!
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Re: R41 and R42

Postby battradio » Mon Jul 20, 2015 10:17 pm

It is for hum balance on the filaments , if you don't have center tapped filament winding's .
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