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FOR SALE: 4 X E90F TUBE. NEW OLD STOCK.
BRAND: VALVO. 1960s PHILIPS PRODUCTION
MESH PLATE, HALO GETTER, COPPER RODS.
TESTED IN ROEHRENTEST TUBE TESTER
121% 8.92mA EMISSION (EM). 5.53mA/V TRANSCONDUCTANCE (GM) 100% 7.37mA EMISSION (EM). 4.75mA/V TRANSCONDUCTANCE (GM) 145% 10.76mA EMISSION (EM). 5.94mA/V TRANSCONDUCTANCE (GM) 137% 10.17mA EMISSION (EM). 5.95mA/V TRANSCONDUCTANCE (GM)
BRAND: VALVO. 1960s PHILIPS PRODUCTION
MESH PLATE, HALO GETTER, COPPER RODS.
TESTED IN ROEHRENTEST TUBE TESTER
121% 8.92mA EMISSION (EM). 5.53mA/V TRANSCONDUCTANCE (GM) 100% 7.37mA EMISSION (EM). 4.75mA/V TRANSCONDUCTANCE (GM) 145% 10.76mA EMISSION (EM). 5.94mA/V TRANSCONDUCTANCE (GM) 137% 10.17mA EMISSION (EM). 5.95mA/V TRANSCONDUCTANCE (GM)