[Amps] SB-220 Bias Question

RICHARD SOLOMON w1ksz at q.com
Wed Jun 10 20:02:55 PDT 2009

The stock SB-220 comes with a 5.1 volt (+/-) bias. A new Meter Board

I have provides 6.8 volt bias. 

Any thoughts on what the increase in voltage will do to the linearity ?


Has anyone measured the Grid Current at both voltages to see the

difference ?


Thanks, Dick, W1KSZ

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