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2 X EC88 TELEFUNKEN TUBE. NEW OLD STOCK.
BRAND: TELEFUNKEN
SILVER PLATES, HALO GETTER, 3 MICA, HIGH GAIN, MATCHED PAIR.
TESTED IN AMPLITREX AT1000 TUBE TESTER:
148% EMISSION (EM) 118% TRANSCONDUCTANCE (GM) 8.8mA GAS
156% EMISSION (EM) 132% TRANSCONDUCTANCE (GM) 6.6mA GAS