Power Amplifier Pentode
Tubular Shaped
This is a Russian tube made in Russia.
The 6F6C / 6F6S / 6Ф6C / 6Ф6S / 6F6G
Vacuum Tube is a glass octal type used in
the audio output stage of AC receivers. It is capable of
large power outputs with relatively small input voltages.
It requires an octal socket and may be mounted in any
position. It is especially important that this tube,
like other power-handling tubes, should be adequately
ventilated.
Electrical Data:
Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.7 A
Maximum Heater-Cathode Voltage Heater Positive with
Respect to Cathode
DC Component .............. 90 V
Heater Negative with Respect to Cathode
DC Component............... 90 V
Preferred Substitutes: 6F6, 6F6C, 6F6G, 6F6S,
6F6GT, 6ô6, 6ô6C, VT66, 6Ф6, 6Ф6C,
6Ф6S, CV1920