12AT7 / ECC81 Vacuum Tube | Dual Triode Preamp & Driver Valve (Noval 9-Pin)
The 12AT7 vacuum tube, also known as ECC81, is a medium-gain dual triode vacuum tube widely used in audio amplification and RF applications. It offers a perfect balance between gain and current handling, making it ideal for driver stages and phase inverter circuits.
With its low noise and stable performance, the 12AT7 is commonly found in guitar amplifiers, hi-fi systems, and studio equipment. Its Noval 9-pin design ensures compatibility with standard tube sockets.
This tube is an excellent choice for applications requiring controlled amplification without excessive distortion.
This is PSVANE make 12AT7.
For Matched Pair | Quad Pair: Please add the qty 2 for matched pair, add qty 4 for Quad pair and provide a note on the order section that you need matched pair / quad pair.
Features of 12AT7 / ECC81 Vacuum Tube
- Dual triode vacuum tube (12AT7 / ECC81)
- Medium gain (µ ≈ 60)
- Low noise and stable operation
- Ideal for driver and phase inverter stages
- Standard Noval (9-pin) base
- Suitable for audio and RF circuits
Specifications of 12AT7 / ECC81 Vacuum Tube
- Tube Type: Dual Triode
- Equivalent: ECC81
- Heater Voltage: 6.3V / 12.6V
- Gain Factor (µ): ~60
- Base Type: Noval (9-pin)
- Envelope: Glass
Pinout with Names of 12AT7 / ECC81
| Pin No. | Name | Description |
|---|---|---|
| 1 | Plate (Anode) – Triode 1 | Output of first triode |
| 2 | Grid – Triode 1 | Signal input |
| 3 | Cathode – Triode 1 | Cathode connection |
| 4 | Heater | Heater supply |
| 5 | Heater | Heater supply |
| 6 | Plate (Anode) – Triode 2 | Output of second triode |
| 7 | Grid – Triode 2 | Signal input |
| 8 | Cathode – Triode 2 | Cathode connection |
| 9 | Heater (Center Tap) | For 6.3V operation |
Applications
- Guitar amplifiers
- Hi-fi audio systems
- Phase inverter circuits
- RF and signal processing
- DIY vacuum tube projects
Package Information
1x 12AT7 / ECC81 Vacuum Tube | Dual Triode Preamp & Driver Valve (Noval 9-Pin)





