Vacuum Tube - 12AT7WC, Electro-Harmonix

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Vacuum Tube - 12AT7WC, Electro-Harmonix

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Quantity in stock: 95

Electro-Harmonix 12AT7WC dual triode preamp tube. Made in Russia. “Xtra Low Microphonic”. Small plate format dual triode, with low microphonics and superior dissipation compared to NOS originals. Ideal for reverb circuits.

  • Extra-low microphonics makes it the best 12AT7 choice for reverb circuits. Also suitable for HiFi.
  • Factory selected for closest tolerances and most consistent performance
  • ECC81 equivalent
Item ID:
Product Measurements by Type
Amplification Factor≥ 50
Capacitance, Transfer1.6 pF
Capacitance, input2.5 pF
Capacitance, output0.4 pF
Cathode to Heater Voltage200 V
Grid Circuit Resistance (Rg), Automatic Bias1.0 MΩ
Grid Circuit Resistance (Rg), Fixed Bias0.25 MΩ
Grid Reverse Current0.5 μA
Heater Current165 mA - 330 mA
Heater Voltage6.0 - 6.6 V / 12.0 - 13.2 V
Plate Current (Ia)18 mA
Plate Dissipation, per triode (Wa)3.25 W
Plate Voltage (Ua)330 V
Transconductance (S)≥ 4.5 mA/V
Packaging Information
Packaging Dimensions2.75 in. × 1 in. × 1 in.
Weight (Packaging)0.034 lbs.

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Specifications, Files, and Documents

PDF: Specification Sheet Specification Sheet30.78 KB

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Product Reviews

5.00 out of 5 based on 1 reviews
Rick Ward - June 23rd, 2022
5 out of 5

Excellent replacement to the stock tubes in my 1990’s Fender SuperSonic22. Along with the other higher end and recommended tubes I have a clearer and throatier sounding amp and great growl whenever needed.