Medium-Mu Twin Triode
The picture is for demonstration
purposes. Name brands will vary.
The 12BH7A / 12BH7 Vacuum Tube is a miniature type used
as a combined vertical-deflection amplifier and
oscillator, and as a horizontal-deflection oscillator in
Tv receivers, phase-inverters and in multivibrator
circuits. They require a miniature 9-contact socket.
Electrical Data:
Heater Voltage .......................... 6.3/12.6 V
Heater Current ............................... 0.6/0.3 A
Preferred Substitutes .................. 12DW7
Substitutes ........................ 12AU7, 12AZ7