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4 X EL84 TUBE. USED.
BRAND: MINIWATT BARCELONA. 1950s PRODUCTION. rX3 CODES.
GREY PLATES, HALO GETTER, COPPER RODS, QUAD.
TESTED IN AMPLITREX AT1000 TUBE TESTER:
81% EMISSION (EM) 96% TRANSCONDUCTANCE (GM) 1.6mA/V GAS
85% EMISSION (EM) 92% TRANSCONDUCTANCE (GM) 2.2mA/V GAS
85% EMISSION (EM) 94% TRANSCONDUCTANCE (GM) 3.2mA/V GAS
97% EMISSION (EM) 97% TRANSCONDUCTANCE (GM) 3.5mA/V GAS
CH166U1
