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2 X E88C / 8255 SINGLE TRIODE SIEMENS TUBE. NEW OLD STOCK.
BRAND: SIEMENS. TUNGSRAM PRODUCTION
SILVER PLATES, HALO GETTER, GOLD PIN, 3 MICA, MATCHED PAIR.
TESTED IN AMPLITREX AT1000 TUBE TESTER:
105% EMISSION (EM) 130% TRANSCONDUCTANCE (GM) 0.2mA GAS
113% EMISSION (EM) 140% TRANSCONDUCTANCE (GM) 5.0mA GAS