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2 X ECC83 / 12AX7 TUBE. NEW OLD STOCK.
BRAND: MINIWATT. 1960s PRODUCTION.
GREY PLATES, DIMPLE GETTER, PAIR.
TESTED IN AMPLITREX AT1000 TUBE TESTER:
141/116% EMISSION (EM) 118/106% TRANSCONDUCTANCE (GM) 0.1/0.0mA GAS
108/116% EMISSION (EM) 100/112% TRANSCONDUCTANCE (GM) 0.0/0.0mA GAS