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1 X ECC81 TUBE. NEW OLD STOCK.
BRAND: ULTRON. 1970s PRODUCTION
GREY PLATES, TILTED HALO GETTER
TESTED IN AMPLITREX AT1000 TUBE TESTER 102/120% EMISSION (EM) 98/108% TRANSCONDUCTANCE (GM) 1.6/0.8mA/V GAS