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
Accessory Items:
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 | 0.0353 lbs. |
Regular version | T-12AU7A-EH | 0.0331 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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Specifications, Files, and Documents
Questions? Contact us at [email protected], or give us a call at 480-820-5411
Substitute Products
The following items can be substituted for this product. While not necessarily exactly the same, they will function as replacement items in your project.
Product Reviews
While looking for a "good" 12AU7A for an HP restoration I am currently doing; I learned there are many brands and types out there. Most are about the same in rating and purpose. What I needed was one to stand up to heat and max power handling capacity. The electro-Harmonix was the tube I went with and was pleasantly surprised at its performance. Best of all; I purchased it from Antique Electronic Supply. I have been doing business with this company for a long time. Always a great experience and the best products.
Good tubes that work well!