[Amps] WEIRD ONE SOLVED

Bill & Liz magoo at isp.ca
Thu Apr 24 19:50:07 EDT 2014


Thanks to Paul, WD7S, my problem has been solved.  Paul kindly analyzed the original schematic of the amp and my conversion and determined that a wiring error in employing the W4ZT bias board had resulted in creation of a grid metering circuit instead of a plate metering circuit.  The negative lead of the bias board should have been grounded instead of attaching to B- since the GI7-B has an indirectly heated cathode whose pin is common to one side of the filament.

Bottom line: everything now works as it should.  Now, bring on the 6M DX!  Thanks again, Paul.

Bill VE3NH


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