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1 X 12AY7 TUBE. NEW OLD STOCK.
BRAND: GENERAL ELECTRIC. 1957 PRODUCTION.
GREY PLATES, RECTANGULAR GETTER.
TESTED IN AMPLITREX AT1000 TUBE TESTER:
73/73% EMISSION (EM) 82/82% TRANSCONDUCTANCE (GM) 0.0/0.0mA/V GAS
CH166U1