JJ Electronics has become the name to know when it comes to amplifier tubes, and their 12AX7 is no exception. It's a reliable tube at a reasonable price, and is used in many different amplifiers.
| Body Height: | 49.2 mm |
|
Cathode Current (Ik): |
≤ 8 mA |
| Filament Current (If): | 300 / 150 mA |
| Filament Voltage (Uf): | 6.3 / 12.6 V |
| Gain (μ): | 100 |
| Grid Circuit Resistance (Rg): | 2.2 M |
| Grid Voltage (Ug): | ≥ -50 V, -2 V typical |
| Heater to cathode resistance (Rk/f): | 150 kΩ |
| Heater to cathode voltage (Uk/f): | ≤ 180 V |
| Internal Resistance (Ri): | 62.5 kΩ |
| Item Diameter: | 22 mm |
| Item Height: | 56.3 mm |
| Plate Current (Ia): | 1.2 mA |
| Plate Dissipation (Wa): | ≤ 1 W |
| Plate Voltage (Ua): | ≤ 300 V, 250 V typical |
| Transconductance (S): | 1.6 mA/V |
