Type | Substitutes | Base Diagram |
---|---|---|
6AX7 | 6851, 6AU7§, 6GU7*, 7AU7§ | |
Notes: | § - May not work in all circuits | |
Web References | 6AX7 (Tung-Sol) @ Franks Electron Tubes 6AX7 (Sylvania) @ Franks Electron Tubes 6AX7 @ RadioMuseum.org |
Bulb | T-61/2 |
Base | Small Button 9-Pin |
Basing | 9A |
Mounting Position | Any |
Heater Voltage Series/Parallel | 6.3/3.15 | Volts |
Heater Current Series/Parallel | 300/600 | Ma |
Heater Warm-up Time | 11 | Seconds |
Maximum Peak Heater-Cathode Voltage | 200 | Volts |
  | Shielded2 | Unshielded | Shielded2 | Unshielded |   |
Grid to Plate | 1.7 | 1.7 | 1.7 | 1.7 | ��f |
Input | 1.8 | 1.6 | 1.8 | 1.6 | ��f |
Output | 1.9 | 0.46 | 1.9 | 0.34 | ��f |
Plate Voltage | 300 | Volts |
Plate Dissipation | 1.0 | Watts |
Positive D C Grid Voltage | 0 | Volts |
Negative D C Grid Voltage | 50 | Volts |
Plate Voltage | 100 | 250 | Volts |
Grid Voltage | -1 | -2 | Volts |
Plate Current | 0.5 | 1.2 | Ma |
Transconductance | 1250 | 1600 | �mhos |
Amplification Factor | 100 | 100 | X |
1 | Section No. 1 connects to Pins 6, 7 and 8. Section No. 2 connects to Pins 1, 2 and 3. |
2 | External shield No. 315 connected to cathode of section under test. |