2 X E180F TESLA PROTOTYPE TUBE. NEW OLD STOCK.

BRAND: TESLA

GRAY PLATES, HALO GETTER, YELLOW LOGO, GOLD PIN, MATCHED PAIR.

TESTED IN AMPLITREX AT1000 TUBE TESTED:

96% EMISSION (EM) 105% TRANSCONDUCTANCE (GM) 0.8mA/V GAS

92% EMISSION (EM) 102% TRANSCONDUCTANCE (GM) 1.6mA/V GAS