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2 X 807 TUBE. NEW OLD STOCK IN ORIGINAL BOX.
BRAND: ULTRON. 1960s PRODUCTION
TESTED IN AMPLITREX AT1000 TUBE TESTER
99% EMISSION (EM). 96% TRANSCONDUCTANCE (GM). 1.0mA GAS.
94% EMISSION (EM). 96% TRANSCONDUCTANCE (GM). 1.0mA GAS.