1 X 12AX7 TUBE. USED.

BRAND: GENERAL ELECTRIC. 1950s PRODUCTION.

17MM GREY PLATES, D-GETTER, COPPER RODS.

THE MEASUREMENTS ON THIS TUBE ARE LOW. THEY ARE OVER THE MINIMUM GOOD EMISSION, WHICH IS 60% OR ABOVE.

TESTED IN AMPLITREX AT1000 TUBE TESTER:

66/66% EMISSION (EM) 87/87% TRANSCONDUCTANCE (GM) 0.2/0.1mA/V GAS