10 X ECC83 KUNDAN TUBE. 1960s PROD. FOUR MATCHED PAIRS & TWO UNITS. 39. CB401

10 X ECC83 TUBE. NEW OLD STOCK IN ORIGINAL BOX.

BRAND: KUNDAN. 1960s PRODUCTION.

GREY PLATES, HALO GETTER, COPPER RODS.

TESTED IN AMPLITREX AT1000 TUBE TESTER:

91/91% EMISSION (EM) 106/106% TRANSCONDUCTANCE (GM) 0.0/0.0mA/V GAS

100/100% EMISSION (EM) 112/112% TRANSCONDUCTANCE (GM) 0.0/0.0mA/V GAS

91/66% EMISSION (EM) 100/93% TRANSCONDUCTANCE (GM) 0.0/0.0mA/V GAS

100/75% EMISSION (EM) 106/93% TRANSCONDUCTANCE (GM) 0.1/0.0mA/V GAS

75/83% EMISSION (EM) 100/100% TRANSCONDUCTANCE (GM) 0.0/0.0mA/V GAS

83/75% EMISSION (EM) 100/100% TRANSCONDUCTANCE (GM) 0.0/0.0mA/V GAS

108/108% EMISSION (EM) 112/112% TRANSCONDUCTANCE (GM) 0.0/0.0mA/V GAS

100/100% EMISSION (EM) 106/106% TRANSCONDUCTANCE (GM) 0.0/0.0mA/V GAS

83/50% EMISSION (EM) 106/75% TRANSCONDUCTANCE (GM) 0.0/0.0mA/V GAS     (THIS TUBE HAS THE SECOND SYSTEM LOW)

83/116% EMISSION (EM) 106/118% TRANSCONDUCTANCE (GM) 0.0/0.0mA/V GAS