[Heathkit] TT1A question

[Peter Beka]

I have checked and replaced all caps on this unit.  Diodes were fine as were most resistors.  I recalibrate the unit and now when I test 6550's/KT88's they test much higher than before.  1430 is the reject point, my tester tests 2000-2200 for most of my KT88's.  I suspect something is fishy.  Any idea how to test?  On my buddy's Hickok he tested a KT88 at about 65% good, on mine it tested much higher than the reject point and the only thing I think may have affected this is after testing gm I did a grid current test and it tested very high for grid current draw.  Will this affect gm values?  


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