Medium-Mu Twin Triode
The 6BK7B Vacuum tube is a miniature type used as a
cascode amplifier in VHF color
and black-and-white television tuners and in push-pull
cathode-drive RF amplifiers. Requires a miniature
9-contact socket.
Electrical Data:
Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.45 A
Heater Warm-up Time ............................. 11 s
Maximum Heater-Cathode Voltage:
Heater Positive with Respect to Cathode
DC Component .............................. 100 V
Total DC and Peak ......................... 200 V
Heater Negative with Respect to Cathode
Total DC and Peak ......................... 200 V
Preferred Substitutes .................... 6FW8 6KN8
Substitutes ..... 6AQ8 6BC8 6BQ7 6BZ7 6BZ8 6CH7 6CX7