Twin Triode
The 6FD7 Vacuum tube is a miniature type containing high-mu and low-mu triode units
used as combined vertical-deflection oscillator and vertical-deflection amplifier in
television receivers. It requires a miniature 9-contact socket.
Electrical Data:
Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.925 A
Preferred Substitutes ......................... 6DE7, 6EW7, 6FR7
Substitutes ................................... 6DR7