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Electro-Harmonix 12AY7 EH / 6072A Vacuum Tube

4.6 4.6 out of 5 stars 84 ratings
$26.43 with 13 percent savings
Typical price: $30.55

This is determined using the 90-day median price paid by customers for the product on Amazon. We exclude prices paid by customers for the product during a limited time deal.
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FREE Returns
30-day easy returns
This item can be returned in its original condition for a full refund or replacement within 30 days of receipt.
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Purchase options and add-ons

  • 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
  • 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.
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Frequently bought together

Electro-Harmonix 12AY7 EH / 6072A Vacuum Tube
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Sold by Root Supply and ships from Amazon Fulfillment.
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Electro-Harmonix 12AY7 EH / 6072A Vacuum Tube

Electro-Harmonix 12AY7 EH / 6072A Vacuum Tube

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Product Description

Electro-Harmonix is rocking the vacuum tube community with the superior quality of the "EH" series tubes.

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Customer reviews

4.6 out of 5 stars
4.6 out of 5
84 global ratings

Customers say

Customers like the noise, performance, cleanliness and quality of the hardware tubing. For example, they mention that it sounds sweeter in this application, works great, and is clean.

AI-generated from the text of customer reviews

26 customers mention22 positive4 negative

Customers like the noise of the tube. They say it sounds sweeter, amazing, and quiet enough for a microphone. Some say it cuts volume good and retains top end. Overall, most are satisfied with the sound quality of the product.

"Pros are it cuts volume good and retains top end…so I use mine for practice at low levels or to take two channels where one is louder than the other...." Read more

"Quiet enough for a microphone! Sound great. Well packaged. Now if only I could remember the coupon code I got with it so I can buy more" Read more

"The product was shipped quickly and easy to install. The amp sounds better with the new tube." Read more

"...the stock Chinese 12AX7 in a tube mic, these 12AY7's are a great option for a clean sound at a very reasonable price and will save you the trouble..." Read more

6 customers mention6 positive0 negative

Customers are satisfied with the performance of the hardware tubing. They mention that it works great.

"Low gain pre amp valve. Came packed well and works as expected. It took the edge off my High Dynamic Range gain which was what I wanted to do...." Read more

"works and fits fine" Read more

"On time delivery, works great!" Read more

"Works Great..." Read more

4 customers mention4 positive0 negative

Customers are satisfied with the cleanliness of the hardware tubing. They mention that it makes their Blues Junior amp into clean, singing perfection.

"...HT20 combo amp.. Sound / Tone is so far perfect, and seems quite a bit cleaner and responsive than the factory 12AX7 originally placed in that..." Read more

"I replaced a JJ 12AX7 in V1 with this tube. The amp is now quieter and cleaner with increased headroom." Read more

"This tube turned my Blues Junior amp into clean, singing perfection!" Read more

"Very clean & warm as a new tube should be..." Read more

4 customers mention4 positive0 negative

Customers are satisfied with the quality of the hardware tubing. They mention that it is a high-quality tube and that Harmonix seems to have a good new stock tube.

"...Electro-Harmonix seems to have a high-quality standard in their products and I'm extremely pleased with this purchase." Read more

"really good tube" Read more

"Good new stock tube..." Read more

"Great tube..." Read more

sounds great
5 Stars
sounds great
Quiet enough for a microphone! Sound great. Well packaged. Now if only I could remember the coupon code I got with it so I can buy more
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Top reviews from the United States

Matt
5.0 out of 5 stars Great low gain tube for playing in apartments and places you need a 30w amp to be lower.
Reviewed in the United States on August 11, 2023
Verified Purchase
Pros are it cuts volume good and retains top end…so I use mine for practice at low levels or to take two channels where one is louder than the other. However, I did find they tighten up the bass and cut lows…this may be desirable or not. It using a Fender deluxe style Botique amp. I much preferred a Ge NOS 5752 which are going upwards of $60 now, but we’ll worth it! You can find those on Reverb.

But great tube also to put in V1 if you just use V2 clean channel as well…as some circuits past through the first V1 section to V2. At the price it’s worth it for sure! But it def cut lows, and in some recording applications this may be useful…you def can crank your volume and for the price it’s worth having one on hand.

Personally I’ll probably put another GE Nos 5751 in my V1. Those are rated about 70% over the stock ones at 100%. But this tube is the one for HRD amps and ones that are crazy loud for home. Like I said only upside or downside is bass is less.
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Aidan Smith
5.0 out of 5 stars sounds great
Reviewed in the United States on February 22, 2024
Verified Purchase
Quiet enough for a microphone! Sound great. Well packaged. Now if only I could remember the coupon code I got with it so I can buy more
Customer image
Aidan Smith
5.0 out of 5 stars sounds great
Reviewed in the United States on February 22, 2024
Quiet enough for a microphone! Sound great. Well packaged. Now if only I could remember the coupon code I got with it so I can buy more
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Carl
5.0 out of 5 stars Works Great
Reviewed in the United States on May 4, 2024
Verified Purchase
The product was shipped quickly and easy to install. The amp sounds better with the new tube.
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Bill Ruys
4.0 out of 5 stars Better than many NOS tubes - Save yourself the money.
Reviewed in the United States on May 20, 2014
Verified Purchase
I have now put two of these tubes into tube microphones that I have modified. In the quest for the best sound I can get, I have also spent much more money on a few NOS tubes. After allowing days of burn-in and critical listening, I really wanted the NOS GE 12AY7 tubes I bought to sound better, but the plain fact is that these Electro-Harmonix 12AY7 tubes out-perform them in every way. For a start, the EH tubes have a much lower noise level than NOS tubes I have tried. Secondly, they just sound sweeter in this application.

In the past, the only other tubes I have used that match these for audio fidelity were milspec JAN Philips ECC88 (6DJ8) tubes, made in the 80's (different heater pinout, but similar in spec). If you are wanting to replace the stock Chinese 12AX7 in a tube mic, these 12AY7's are a great option for a clean sound at a very reasonable price and will save you the trouble of finding a good NOS tube when many of them are of dubious quality.
2 people found this helpful
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DS
5.0 out of 5 stars Low gain pre amp valve. Came packed well and ...
Reviewed in the United States on February 9, 2017
Verified Purchase
Low gain pre amp valve. Came packed well and works as expected. It took the edge off my High Dynamic Range gain which was what I wanted to do. It's not 1/2 the gain however, I don't know how these are measured. I dropped the gain a noticeable amount using the same gain settings but it's hard to measure it empirically. My goal was to drop some of the high gain and this valve did the trick.
2 people found this helpful
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ddecimal
5.0 out of 5 stars Good new stock tube
Reviewed in the United States on January 21, 2022
Verified Purchase
Used in V1 of a Fender Hotrod Deluxe to "tame the beast". I like the new character of the amp. Made the volume knob less touchy. Still a very loud amp but it gives it more breathing room to find the perfect texture in-between clean and overdrive.
One person found this helpful
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E. Lord
5.0 out of 5 stars Very clean & warm as a new tube should be
Reviewed in the United States on May 10, 2013
Verified Purchase
I purchased this tube to swap for one of the 12AX7s in an Electro-Harmonix LPB2UBE pedal. I then modified the pedal so that it would switch between the 2 tube amps when you stepped on the footswitch instead of turning it on & off. I'm very pleased with the result, the 12AY7 tube here is on the left side and provides lower gain for the root part of songs, then I can switch to the 12AX7 on the right for higher gain for solos & whatnot. Electro-Harmonix seems to have a high-quality standard in their products and I'm extremely pleased with this purchase.
3 people found this helpful
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Amazon Customer
5.0 out of 5 stars Great Price
Reviewed in the United States on July 5, 2023
Verified Purchase
Great Price Fast Shipping Tube Tests Good on Arrival :)
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