Vacuum Tube - 12AY7, JJ Electronics

JJ Electronics
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Vacuum Tube - 12AY7, JJ Electronics

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The JJ Electronic 12AY7 is a low microphonic tube built in the same rugged fashion as all JJ preamp tubes. This tube offers the classic warm 12AY7 sound with rich and balanced harmonics when pushed enough to break up. It’s a great choice for authentic tweed tones but can also help clean up amps when used in place of a 12AX7. Additionally, the JJ 12AY7 is a great replacement in 6072 microphones.

Item ID:
JJ Electronics
RoHS Compliant
Product Measurements by Type
Capacitance, Grid to Filament1.6 pF
Capacitance, Plate0.33 pF
Capacitance, grid to plate1.7 pF
Cathode Current (Ik)≤ 10 mA
Filament Current (If)300 / 150 mA
Filament Voltage (Uf)6.3 / 12.6 V
Gain (μ)40
Grid Voltage (Ug)≥ -50 V, -4 V typical
Heater to Cathode Voltage (Uk/f)≤ 90 V
Internal Resistance (Ri)22.8 kΩ
Plate Current (Ia)3.0 mA
Plate Dissipation (Wa)≤ 1.5 W
Plate Voltage (Ua)≤ 300 V, 250 V typical
Transconductance (S)1.75 mA/V
Packaging Information
Packaging Dimensions2.5 in. × 1 in. × 1 in.
Weight (Packaging)0.03 lbs.

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Specifications, Files, and Documents

PDF: Specification Sheet Specification Sheet399.15 KB

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Product Reviews

4.40 out of 5 based on 5 reviews
- March 9th, 2021
5 out of 5

I love these tubes to tame an amp that has too much gain.
More clean headroom = pedal friendly.. Great tube.. Love JJ tubes !

- February 5th, 2021
4 out of 5

Very good tube. It replaced an ageing NOS GE in my Victoria deluxe 2012 that was crackling/popping. Quiet and very good. I did try an EH 12AY7, and I like it a bit better in my amp - but very subtle. I

- August 16th, 2020
5 out of 5

Good tube, used to drive the reverb tank in a Princeton reverb amp, nice sound and provided a wider range of adjustment

- July 18th, 2020
5 out of 5

Sounds great in V1 of my Princeton Reverb Amp

- December 3rd, 2018
3 out of 5

Not horrible. Somewhat good but, a little blah at the same time. YMMV. I don't like to trash talk products. FWIW, I was comparing a NOS 12AX7 so not a totally fair comparison. Low cost, probably pretty hardy, and not terrible. Just pedestrian maybe. They're good to tame an unruly amp.