[Amps] Checking 8163s

David H Craig n3db at radix.net
Sat Oct 11 17:16:57 EDT 2008

    Is it reasonable to test a pair of 3-400s in an SB220 ?  If I remember correctly the 3-500 is also a "zero bias" tube - that said, would the slight bias voltage (6.? I forget) in my 220 create a false read insofar as these 8163s potential output is concerned?

73 Dave N3DB

More information about the Amps mailing list