Vacuum Tube - 12AU7 / ECC82, JJ Electronics

JJ Electronics
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Vacuum Tube - 12AU7 / ECC82, JJ Electronics

Starting at: $10.95
In stock

The JJ Electronic 12AU7 / ECC82 is a medium gain dual triode built with the quality and reliability that we’ve come to expect from a JJ tube. This 12AU7 offers smooth tones and clear definition which is why it’s no surprise that this tube is often found in hifi equipment as well as guitar amplifiers.

RoHS Compliant
Item ID:
JJ Electronics
Part Numbers
Pin TypeOur Part NumberUPC/EANJJ Electronics Part Number
GoldT-12AU7-GOLD-JJ609722123488 ECC82 / 12AU7 - GOLD
RegularT-12AU7-JJ844632022074 ECC82 / 12AU7 - GOLD
Product Measurements
Body Height49.2 mm
Cathode Current (Ik)≤ 20 mA
Filament Current (If)300 / 150 mA
Filament Voltage (Uf)6.3 / 12.6 V
Gain (μ)17
Grid Voltage (Ug)≥ -50 V, -8.5 V typical
Heater to cathode resistance (Rk/f)150 kΩ
Heater to cathode voltage (Uk/f)≤ 180 V
Internal Resistance (Ri)7.7 kΩ
Item Diameter22.2 mm
Item Height56.3 mm
Plate Current (Ia)10.5 mA
Plate Dissipation (Wa)≤ 2.75 W
Plate Voltage (Ua)≤ 300 V, 250 V typical
Transconductance (S)2.2 mA/V
Packaging Information
Packaging Dimensions1 in. × 1 in. × 2.5 in.
Weight (Packaging)Gold version0.03 lbs.
Regular version0.029 lbs.

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Specifications, Files, and Documents

PDF: Specification Sheet Specification Sheet475.22 KB

Questions and Answers

Click each question to see its answers.
Asked by Anonymous on August 18th, 2016.
Matt H
August 18th, 2016
Yes, a 12AX7 and a 12AU7 are interchangeable. In fact, all of the following tubes work where a 12AX7 would go: 5751, 12AT7, 12AY7 and 12AU7. The 12AX7 will have the most gain and the 12AU7 will have least amount gain.
Asked by Anonymous on November 18th, 2016.
Matt H
November 18th, 2016
Hi, we do not match preamp tubes at this time.
Asked by Anonymous on April 5th, 2017.
Matt H
April 6th, 2017
It is hard for us to say what is the highest quality 12AU7 as tone is subjective. The JJ is the most popular 12AU7 we carry.

Product Reviews

5.00 out of 5 based on 1 reviews
- December 30th, 2015
5 out of 5

Made my distortion channel useable in my hot rod deluxe.Warm sounding,good for rock and blues.

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