4 X 7025 GE LOW NOISE TUBE. NIB. READ DESCRIPTION. 38. CB401

4 X 12AX7A / 7025 TUBE. NEW OLD STOCK IN ORIGINAL BOX.

BRAND: GENERAL ELECTRIC. 1980s PRODUCTION.

GREY PLATES, HALO GETTER, 

LOW NOISE ECC83 MODEL. THE SYSTEMS HAVE LOW EMISSION.

TESTED IN AMPLITREX AT1000 TUBE TESTER:

83/66% EMISSION (EM) 93/87% TRANSCONDUCTANCE (GM) 0.0/0.0mA/V GAS

66/83% EMISSION (EM) 81/93% TRANSCONDUCTANCE (GM) 0.1/0.1mA/V GAS

66/83% EMISSION (EM) 81/93% TRANSCONDUCTANCE (GM) 0.1/0.1mA/V GAS

66/83% EMISSION (EM) 87/99% TRANSCONDUCTANCE (GM) 0.0/0.1mA/V GAS