75 Philco by Sylvania Dual-Diode Triode used/strong 1930”s pins cleaned (27/19) Title: 75

75 Philco by Sylvania Dual-Diode Triode used/strong 1930”s pins cleaned of oxidation

triode 27/19

diodes 57/40 and 57/40

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