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Vacuum Tube - 12AU7A / ECC82, Electro-Harmonix
Superior medium-Mu Twin Triode for use in preamplifier and driver circuits. Standard replacement for all circuits requiring 12AU7/ECC82 types.
- Low microphonics, high linearity
- Reproduction of the NOS GE 6189
- ECC82 equivalent
| Pin Type | Our Part Number | UPC/EAN |
|---|---|---|
| Regular | T-12AU7A-EH | 683274021652 |
| Gold | T-12AU7-GOLD-EH | 841358101724 |
| Amplification Factor | 15 min, 17 nominal | |
| Capacitance, Cathode to Heater | 5.0 nF | |
| Capacitance, Grid to Cathode and Heater | 2.0 pF | |
| Capacitance, Plate to Cathode and Heater | 1.5 pF | |
| Capacitance, Plate to Plate | 500 pF | |
| Capacitance, grid to plate | 1.8 pF | |
| Grid Circuit Resistance (Rg), Fixed Bias | 1 MΩ | |
| Grid Circuit Resistance (Rg), Self Bias | 2.2 MΩ | |
| Grid Reverse Current | 0.5 μA | |
| Heater Current | 0.3 A / 0.15 A | |
| Heater Voltage | 6.0 - 6.6 V / 12.0 - 13.2 V | |
| Heater Warmup Time | 12 s | |
| Heater to Cathode Voltage, Negative | 200 V | |
| Heater to Cathode Voltage, Positive | 100 V | |
| Plate Current (Ia) | 22 mA | |
| Plate Dissipation, per triode (Wa) | 2.75 W | |
| Plate Resistance (Ra) | 7.5 kΩ | |
| Plate Voltage (Ua) | 330 V | |
| Transconductance (S) | 2.2 mA/V |
| Packaging Dimensions | Gold version | T-12AU7-GOLD-EH | 2.75 in. × 1 in. × 1 in. |
| Regular version | T-12AU7A-EH | 1 in. × 1 in. × 3 in. | |
| Weight (Packaging) | Gold version | T-12AU7-GOLD-EH | 0.035 lbs. |
| Regular version | T-12AU7A-EH | 0.038 lbs. |
| T-12AU7-GOLD-EH - Gold version | Amplification Factor | 15 min, 17 nominal |
| Capacitance, Cathode to Heater | 5.0 nF | |
| Capacitance, Grid to Cathode and Heater | 2.0 pF | |
| Capacitance, Plate to Cathode and Heater | 1.5 pF | |
| Capacitance, Plate to Plate | 500 pF | |
| Capacitance, grid to plate | 1.8 pF | |
| Grid Circuit Resistance (Rg), Fixed Bias | 1 MΩ | |
| Grid Circuit Resistance (Rg), Self Bias | 2.2 MΩ | |
| Grid Reverse Current | 0.5 μA | |
| Heater Current | 0.3 A / 0.15 A | |
| Heater Voltage | 6.0 - 6.6 V / 12.0 - 13.2 V | |
| Heater Warmup Time | 12 s | |
| Heater to Cathode Voltage, Negative | 200 V | |
| Heater to Cathode Voltage, Positive | 100 V | |
| Plate Current (Ia) | 22 mA | |
| Plate Dissipation, per triode (Wa) | 2.75 W | |
| Plate Resistance (Ra) | 7.5 kΩ | |
| Plate Voltage (Ua) | 330 V | |
| Transconductance (S) | 2.2 mA/V | |
| T-12AU7A-EH - Regular version | Amplification Factor | 15 min, 17 nominal |
| Capacitance, Cathode to Heater | 5.0 nF | |
| Capacitance, Grid to Cathode and Heater | 2.0 pF | |
| Capacitance, Plate to Cathode and Heater | 1.5 pF | |
| Capacitance, Plate to Plate | 500 pF | |
| Capacitance, grid to plate | 1.8 pF | |
| Grid Circuit Resistance (Rg), Fixed Bias | 1 MΩ | |
| Grid Circuit Resistance (Rg), Self Bias | 2.2 MΩ | |
| Grid Reverse Current | 0.5 μA | |
| Heater Current | 0.3 A / 0.15 A | |
| Heater Voltage | 6.0 - 6.6 V / 12.0 - 13.2 V | |
| Heater Warmup Time | 12 s | |
| Heater to Cathode Voltage, Negative | 200 V | |
| Heater to Cathode Voltage, Positive | 100 V | |
| Plate Current (Ia) | 22 mA | |
| Plate Dissipation, per triode (Wa) | 2.75 W | |
| Plate Resistance (Ra) | 7.5 kΩ | |
| Plate Voltage (Ua) | 330 V | |
| Transconductance (S) | 2.2 mA/V |
 Specification Sheet | All Models |
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Questions and Answers
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1 answers
Is this a balanced 12AU7? Dual symmetrical triodes?
Asked by Mike Dykes on February 20th, 2018.
These are not balanced and we recommend the TAD 12AU7 as they are balanced. Do a search for SKU: T-12AU7A-TAD.
Substitute Products
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