Twin Diode - High-Mu Triode
The 75 Vacuum Tube is a glass type triode with
two diodes and a
six-pin base.
The 75 Vacuum tube is used as a combined detector, audio
amplifier, and
AVC tube in radio receivers designed in the early 1930s.
Electrical Data:
Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.3 A
Substitutes ......................... 6SZ7