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1 X 6761 TUBE. NEW OLD STOCK.
BRAND: ERICSSON. 1950s PRODUCTION.
BLACK PLATES, DUAL D-GETTER, COPPER RODS.
TESTED IN ROEHRENTEST TUBE TESTER:
99% 79.3mA EMISSION (EM) 13.38mA/V TRANSCONDUCTANCE (GM)
CH168U1