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1 X CV455 / E81CC TUBE. USED.
BRAND: -. 1950s BRITISH PRODUCTION.
BLACK PLATES, RECTANGULAR GETTER, COPPER RODS.
IT HAS ALMOST NOT SIGNS OF USAGE.
TESTED IN ROEHRENTEST TUBE TESTER:
110/112% EMISSION (EM) 101/105% TRANSCONDUCTANCE (GM) 1.4/0.8mA/V GAS
CH168U1