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75=VT-75 Tungsol Dual-Diode Triode used/good 1940's
triode 34/19
diodes 50/40 and 52/40
tested on TV-7D/U
(Type 75 has similar specs to 6SQ7, 2A6, 6B6)
Dual-Diode Triode
- Detrola 106 1936- GE G-76 1939-1942