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2 X EL34 TUBE. USED.
BRAND: ELECTRON. 1970s RFT PRODUCTION.
GREY PLATES, HALO GETTER, COPPER RODS.
THE RIGHT TUBE HAS THE CENTRAL PIN BROKEN.
TESTED IN AMPLITREX AT1000 TUBE TESTER:
96% EMISSION (EM) 93% TRANSCONDUCTANCE (GM) 5.0mA/V GAS
81% EMISSION (EM) 88% TRANSCONDUCTANCE (GM) 1.4mA/V GAS
CH164U1