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2 X 6BQ7 RCA TUBE. NEW OLD STOCK IN ORIGINAL BOX.
BRAND: RCA. 1970s PRODUCTION.
GREY PLATES, HALO GETTER, MATCHED PAIR.
TESTED IN AMPLITREX AT1000 TUBE TESTER:
91/100% EMISSION (EM) 93/103% TRANSCONDUCTANCE (GM) 0.2/0.6mA GAS
95/102% EMISSION (EM) 93/106% TRANSCONDUCTANCE (GM) 2.0/2.6mA GAS