CV4003 / 12AU7WA / 6189 reliable low impedance double triode
 |
This valve measures 55x19mm overall and has a B9A base. |
This valve is based on the CV491. The equivalent flying lead valve is CV4034. CV4113 is a gold-pinned version. See also CV4122 which is a selected CV4003.
| Heater voltage | 12.6 / 6.3V |
| Heater current at 12.6V | 150mA |
| Max anode voltage | 330V |
| Max anode dissipation | 3W |
| Max peak negative grid voltage | -200V |
| Max negative grid voltage | -55V |
| Max cathode current | 20mA |
| Mutual conductance * | 2.2mA/V |
| Amplification factor * | 17 |
| Anode impedance * | 7700 ohms |
| Max heater cathode voltage | 200V |
| Max bulb temperature | 200C |
| Max shock (short duration) | 500g |
| Max acceleration (continuous operation) | 2.5g |
| Capacitances (unscreened) | |
| Cag nom (each section) | 1.5pF |
| Cin nom (each section) | 1.6pF |
| Cout ' nom | 0.5pF |
| Cout " nom | 0.45pF |
| Pin | Function |
| 1 | Anode " |
| 2 | Grid " |
| 3 | Cathode " |
| 4 | Heater |
| 5 | Heater |
| 6 | Anode ' |
| 7 | Grid ' |
| 8 | Cathode ' |
| 9 | Heater centre tap |
