Sharp-Cutoff Pentode
The 7C7 Vacuum tube is a glass lock-in type used as a
biased detector or rf amplifier. It was first developed
by the Radio Corporation of America (RCA) in 1947 and
requires a lock-in socket.
Electrical Data:
Heater Voltage ................................ 6.3 V
Heater Current ............................... 0.15 A
Preferred Substitutes ...................... 7B7
Substitutes ................... 7A7, 7AH7, 7AJ7, 7G