Superior medium-mu small signal twin triode with high transconductance. May be used instead of 12AX7/ECC83 in first gain stage of various amps for a more linear, vintage response.
- Originally designed for use in audio preamplifiers requiring low microphonics and good linearity, such as Fender "Tweed" Series
- Perfect replacement for any 6072/12AY7 type
- Relabeled Electro-Harmonix vacuum tubes are used by many OEMs in their amplifiers
Electro-Harmonix 12AY7/6072A Vacuum Tube
Performance
- Known for being very quiet, detailed, and providing a vintage, warm, and smooth sound with lower distortion.
Gain Structure
- Medium-mu triode, suitable for reducing gain in the first preamp stage of high-gain amps for a more articulate response.
Structure
- Features a specialized spiral filament to minimize cathode-induced hum.
Applications
- Perfect for vintage Fender Tweed amp restoration or as a sub for 12AX7/ECC83/6072 to achieve cleaner, less compressed, and warmer tones.
Type
- 12AY7 / 6072A
Country of Origin
- Russia
Gain
- Medium
Pinout
- Standard 9-pin (12AX7 compatible)

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