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FOR SALE: 1 X E90F TUBE. NEW OLD STOCK IN ORIGINAL BOX.
BRAND: MINIWATT. 1960s PHILIPS PRODUCTION.
MESH PLATES, HALO GETTER, COPPER RODS.
SQ = SPECIAL QUALITY
TESTED IN ROEHRENTEST TUBE TESTER
117% 8.69mA EMISSION (EM). 4.96mA/V TRANSCONDUCTANCE (GM)
BRAND: MINIWATT. 1960s PHILIPS PRODUCTION.
MESH PLATES, HALO GETTER, COPPER RODS.
SQ = SPECIAL QUALITY
TESTED IN ROEHRENTEST TUBE TESTER
117% 8.69mA EMISSION (EM). 4.96mA/V TRANSCONDUCTANCE (GM)