Power Amplifier Pentode
The National Tube 6BQ6 / EL84 Vacuum tube is a miniature type
used in the output stage of audio-frequency
amplifiers. They require a miniature 9-contact socket.
Electrical Data:
Heater Voltage ............................ 6.3 V
Heater Current ........................... 0.76 A
Maximum Heater-Cathode Voltage
Heater Positive with Respect to Cathode
DC Component .............................. 100 V
Total DC and Peak ......................... 100 V
Heater Negative with Respect to Cathode
Total DC and Peak ......................... 100 V
Like all 6BQ5's, these tubes can overheat if they are
used in amps with poor air circulation.
Preferred Substitutes ............ EL84, EL84M, 6BQ5, 6N14N, 6P14P, 7189