Vacuum Tube - 12AT7 / ECC81, JJ Electronics

Vacuum Tube - 12AT7 / ECC81, JJ Electronics

JJ Electronics
Pictured: Regular
Pictured: Regular
Pictured: Gold
Pictured: Gold
Pictured: Regular
Pictured: Regular
Pictured: Gold
Pictured: Gold
Customer image:<br/>"new tubes, in an old radio"
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Pictured: RegularPictured: GoldPictured: RegularPictured: Gold
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Customer image: "new tubes, in an old radio"
Starting at: $19.25
In Stock

The JJ Electronic 12AT7 / ECC81 is a good choice for phase inverters, reverb drivers, and general preamp use. This tube offers low noise, low microphonics, and warm smooth tones at a great price. Like all JJ tubes, it has a rugged construction that doesn’t compromise the sound of your amp. The JJ 12AT7 is a solid replacement for any 12AT7, ECC81, or 6201 tube. It can also be used to replace 12AX7 tubes in position 1 to reduce gain.

SKU:
T-12AT7-JJ-X
Item ID:
004428
Brand:
JJ Electronics
RoHS Compliant
Part Numbers
Pin TypeOur Part NumberUPC/EANJJ Electronics Part Number
GoldT-12AT7-GOLD-JJ609722123471 ECC81 / 12AT7 - GOLD
RegularT-12AT7-JJ844632064036 ECC81 - 12AT7
Product Measurements by Type
Body Height49.2 mm
Cathode Current (Ik)≤ 15 mA
Filament Current (If)300 / 150 mA
Filament Voltage (Uf)6.3 / 12.6 V
Gain (μ)60
Grid Circuit Resistance (Rg)1 MΩ
Grid Voltage (Ug)≥ -50 V, -2 V typical
Heater to cathode voltage (Uk/f)≤ 90 V
Internal Resistance (Ri)11 kΩ
Item Diameter22 mm
Item Height56.3 mm
Plate Current (Ia)10 mA
Plate Dissipation (Wa)≤ 2.5 W
Plate Voltage (Ua)≤ 300 V, 250 V typical
Transconductance (S)5.5 mA/V
Packaging Information
Packaging Dimensions1 in. × 1 in. × 2.5 in.
Weight (Packaging)Gold versionT-12AT7-GOLD-JJ0.03 lbs.
Regular versionT-12AT7-JJ0.029 lbs.
Product Measurements by Item
T-12AT7-JJ - Regular versionBody Height49.2 mm
Cathode Current (Ik)≤ 15 mA
Filament Current (If)300 / 150 mA
Filament Voltage (Uf)6.3 / 12.6 V
Gain (μ)60
Grid Circuit Resistance (Rg)1 MΩ
Grid Voltage (Ug)≥ -50 V, -2 V typical
Heater to cathode voltage (Uk/f)≤ 90 V
Internal Resistance (Ri)11 kΩ
Item Diameter22 mm
Item Height56.3 mm
Plate Current (Ia)10 mA
Plate Dissipation (Wa)≤ 2.5 W
Plate Voltage (Ua)≤ 300 V, 250 V typical
Transconductance (S)5.5 mA/V
T-12AT7-GOLD-JJ - Gold versionBody Height49.2 mm
Cathode Current (Ik)≤ 15 mA
Filament Current (If)300 / 150 mA
Filament Voltage (Uf)6.3 / 12.6 V
Gain (μ)60
Grid Circuit Resistance (Rg)1 MΩ
Grid Voltage (Ug)≥ -50 V, -2 V typical
Heater to cathode voltage (Uk/f)≤ 90 V
Internal Resistance (Ri)11 kΩ
Item Diameter22 mm
Item Height56.3 mm
Plate Current (Ia)10 mA
Plate Dissipation (Wa)≤ 2.5 W
Plate Voltage (Ua)≤ 300 V, 250 V typical
Transconductance (S)5.5 mA/V

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Product Reviews

4.73 out of 5 based on 26 reviews
Robb H - January 8th, 2023
5 out of 5

Five stars plus. Changed out the worn tubes in my Princeton Reverb with new JJ's 12AT7 and 12AX7...Wow the tone is back.
I was very pleased with the service that I received from AE and recommend them to anyone considering tube replacement,
Thanks Guys

Ricky Davis Bledsoe - November 22nd, 2022
5 out of 5

The Tubes arrived safe and measured Perfect for their value and installed and they sound and work GREAT!! Thank you; ya'll are the best.
Ricky

clint - August 9th, 2022
5 out of 5

Works perfect

Brian Silcox - March 25th, 2022
5 out of 5

J&J is my first choice in vacuum tubes for guitar and audio amps. Antique Electronics offers excellent range of products and has great customer service

Allen3k - November 16th, 2021
5 out of 5

Keep one on hand for inventory. Some repairs lately have needed to dial down the gain a bit from a full-on 12a--X--7.

Tim B. - September 12th, 2021
4 out of 5

I have been a satisfied customer for years. However, this time, I ordered two tubes in case one happened to be bad. Both tested bad when I got them. Four stars for previous orders.

Michael Barnett - May 6th, 2021
1 out of 5

One tube good. One bad! You selling junk now!

jsc_ltd - July 31st, 2020
5 out of 5

I used these for cathode followers in an SVT-style bass amp I designed. They do exactly what I need them to: supply a huge, immaculate signal to the power section. I prefer JJs to Chinese or Russian tubes; they seem better and more consistently built.

john hoskin - June 13th, 2020
5 out of 5

The people at AES are always helpful and informative!!!
I am resurrecting my 1966 Fender Princeton Reverb amp.
The reverb was a little weak and so I replaced the 12AT7 and BINGO the reverb was back
and strong as ever!!!
Thank you all!

Scooter - April 6th, 2020
5 out of 5

Great tubes, sound great, last a long time

Substitute Products

The following items can be substituted for this product. While not necessarily exactly the same, they will function as replacement items in your project.