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5 X EC88 TUBE. NEW OLD STOCK.
BRAND: MAZDA. TELEFUNKEN PRODUCTION.
SILVER PLATES, HALO GETTER, GOLD PIN, 3 MICA.
THE TUBE THAT HAS LOW EMISSION IS INCLUDED AS A GIFT.
TESTED IN AMPLITREX AT1000 TUBE TESTER:
139% EMISSION (EM) 130% TRANSCONDUCTANCE (GM) 1.2mA GAS
96% EMISSION (EM) 94% TRANSCONDUCTANCE (GM) 0.6mA GAS
80% EMISSION (EM) 96% TRANSCONDUCTANCE (GM) 0.6mA GAS
94% EMISSION (EM) 84% TRANSCONDUCTANCE (GM) 0.2mA GAS
LOW EMISSION TUBE:
MINIMUM GOOD EMISSION = 60%
64% EMISSION (EM) 72% TRANSCONDUCTANCE (GM) 5.2mA GAS
