1x Osram B339 Valve

Very rare Osram B339 with long black-plate and []-getter
Date Code: F LD (1955)

Tested by AVO VCM Tester


Ia1 = 1.08(mA), gm1 = 1.65(mA/V)
Ia2 = 1.03(mA), gm2 = 1.6(mA/V)


NOS specification: Ia = 1.2(mA), gm = 1.6(mA/V)


*** This valve has also been tested in amplifier without any noise. ***



Postage Costs
I am happy to post this item to worldwide and combine postage cost on multiple purchases.
















20260803L001