Tested
Gm 2500/2410 - 13.0/13.2mA
New Spec. Gm 2200 - 10.5mA
Black Plates, Halo "[]" Getter
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All tubes are tested using my Amplitrex AT1000 (Fixed Bias) or Calibrated Western Electric KS-15750-L2
(Similar to Hickok 539B) or my Hickok 539C
New items added every week, so check back often!
Shipping insurance is offered and is highly recommended!
I always combine Shipping when Possible