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2 X 12AT7WC PHILIPS ECG TUBE. NEW OLD STOCK IN ORIGINAL BOX.
BRAND: PHILIPS ECG. 1980s PRODUCTION.
GREY PLATES, HALO GETTER, COPPPER RODS, PAIR.
TESTED IN AMPLITREX AT1000 TUBE TESTER:
82/92% EMISSION (EM)76/95% TRANSCONDUCTANCE (GM) 0.4/3.0mA GAS
108/104% EMISSION (EM) 112/108% TRANSCONDUCTANCE (GM) 0.4/0.6mA GAS