Vacuum Tube - 12AX7 / ECC83, JJ Electronics

Vacuum Tube - 12AX7 / ECC83, JJ Electronics

JJ Electronics
Pictured: Regular
Pictured: Regular
Pictured: Gold
Pictured: Gold
Pictured: Regular
Pictured: Regular
Pictured: Gold
Pictured: Gold
Vacuum Tube - 12AX7 / ECC83, JJ Electronics image 5
Customer image:<br/>""
Customer image:<br/>"Station of WB7AM"
Customer image:<br/>"12AX7 JJ MIC PREAMP"
Customer image:<br/>"MIC PREAMP BROOKLIN 810"
Customer image:<br/>"JJ 12AX7 PREAMP UNDER CHASSIS"
Customer image:<br/>"100% JJ Tubes. Great Sound."
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Pictured: RegularPictured: GoldPictured: RegularPictured: GoldVacuum Tube - 12AX7 / ECC83, JJ Electronics image 5
Customer Images:
Customer image: ""Customer image: "Station of WB7AM"Customer image: "12AX7 JJ MIC PREAMP"Customer image: "MIC PREAMP BROOKLIN 810"Customer image: "JJ 12AX7 PREAMP UNDER CHASSIS"Customer image: "100% JJ Tubes. Great Sound."
Starting at: $19.25

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  • Gold (T-12AX7-GOLD-JJ)
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The JJ Electronic 12AX7 / ECC83 has quickly become a modern classic in preamp tubes. Its rugged design and rich harmonics make this tube an obvious choice for musicians who need a reliable and high quality tube at a reasonable price.

The balanced tone of the JJ 12AX7 works well in any amp. This versatile tube sounds excellent in clean amps offering an amazing dynamic response while also proving itself in high gain amps with its low noise and noticeably less microphonic issues than other tubes. The warm highs and transparent lows make it a great choice for any position in a tube amp. The JJ 12AX7 is the go-to tube of many amp builders and touring musicians.

SKU:
T-12AX7-JJ-X
Item ID:
004452
Brand:
JJ Electronics
RoHS Compliant
Part Numbers
Pin TypeOur Part NumberUPC/EANJJ Electronics Part Number
GoldT-12AX7-GOLD-JJ797734820959 ECC83S / 12AX7, 7025 - GOLD
RegularT-12AX7-S-JJ844632022081 ECC83S - 12AX7, 7025
Product Measurements by Type
Body Height49.2 mm
Cathode Current (Ik)≤ 8 mA
Filament Current (If)300 / 150 mA
Filament Voltage (Uf)6.3 / 12.6 V
Gain (μ)100
Grid Circuit Resistance (Rg)2.2 MΩ
Grid Voltage (Ug)≥ -50 V, -2 V typical
Heater to cathode resistance (Rk/f)150 kΩ
Heater to cathode voltage (Uk/f)≤ 180 V
Internal Resistance (Ri)62.5 kΩ
Item Diameter22 mm
Item Height56.3 mm
Plate Current (Ia)1.2 mA
Plate Dissipation (Wa)≤ 1 W
Plate Voltage (Ua)≤ 300 V, 250 V typical
Transconductance (S)1.6 mA/V
Packaging Information
Packaging Dimensions1 in. × 1 in. × 2.5 in.
Weight (Packaging)0.032 lbs.
Product Measurements by Item
T-12AX7-S-JJ - Regular versionBody Height49.2 mm
Cathode Current (Ik)≤ 8 mA
Filament Current (If)300 / 150 mA
Filament Voltage (Uf)6.3 / 12.6 V
Gain (μ)100
Grid Circuit Resistance (Rg)2.2 MΩ
Grid Voltage (Ug)≥ -50 V, -2 V typical
Heater to cathode resistance (Rk/f)150 kΩ
Heater to cathode voltage (Uk/f)≤ 180 V
Internal Resistance (Ri)62.5 kΩ
Item Diameter22 mm
Item Height56.3 mm
Plate Current (Ia)1.2 mA
Plate Dissipation (Wa)≤ 1 W
Plate Voltage (Ua)≤ 300 V, 250 V typical
Transconductance (S)1.6 mA/V
T-12AX7-GOLD-JJ - Gold versionBody Height49.2 mm
Cathode Current (Ik)≤ 8 mA
Filament Current (If)300 / 150 mA
Filament Voltage (Uf)6.3 / 12.6 V
Gain (μ)100
Grid Circuit Resistance (Rg)2.2 MΩ
Grid Voltage (Ug)≥ -50 V, -2 V typical
Heater to cathode resistance (Rk/f)150 kΩ
Heater to cathode voltage (Uk/f)≤ 180 V
Internal Resistance (Ri)62.5 kΩ
Item Diameter22 mm
Item Height56.3 mm
Plate Current (Ia)1.2 mA
Plate Dissipation (Wa)≤ 1 W
Plate Voltage (Ua)≤ 300 V, 250 V typical
Transconductance (S)1.6 mA/V

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Questions and Answers

Click each question to see its answers.
Asked by Anonymous on August 30th, 2015.
JustinG
August 31st, 2015
Staff Member
Top Contributor
Yes,this tube will be compatible with amps that use a 12AX7 in the preamp section such as the Fender Twin.
Asked by Anonymous on July 6th, 2016.
Matt H.
July 6th, 2016
Staff Member
Hi, we only match power tubes. We do not match preamp tubes such as the 12AX7.
Asked by Anonymous on April 29th, 2017.
Matt H.
May 2nd, 2017
Staff Member
Yes, according to the Orange website you amp takes two of these tubes.
Asked by Anonymous on May 16th, 2017.
Matt H.
May 16th, 2017
Staff Member
The pins are gold and this helps to prevent corrosion and buildup on the tubes pins. Other than the pins, they are the same tube as compared to the regular pin version.
Asked by Anonymous on May 24th, 2017.
Matt H.
May 24th, 2017
Staff Member
When plugged in this tube has the following dimensions: 1.94" (49.2mm) x 0.87" (22mm). You will want to measure your existing tubes to insure a proper fit.
Asked by Anonymous on August 25th, 2017.
Matt H.
August 25th, 2017
Staff Member
The S stand for spiral filament and refers to the internal construction. This will work in any situation where an ECC83/12AX7 is needed.
Asked by Anonymous on October 6th, 2017.
Matt H.
October 6th, 2017
Staff Member
Tube characteristics can be different from brand to brand, and because the tone of tubes can be highly subjective, we can not verify if these tubes will get you your desired tone. You can visit the "Tech Corner" of our website for a 12AX7 comparison of current made tubes. This has a wealth of information to help you make a decision.
Asked by Anonymous on February 16th, 2018.
Matt H.
February 16th, 2018
Staff Member
The plate design on these is slightly more compact but function just like any other 12AX7.
Asked by Anonymous on June 26th, 2018.
BradWbr
June 26th, 2018
Staff Member
All information we were able to find on a Bedrock 600 stated that it uses EL84 power tubes.

Product Reviews

4.90 out of 5 based on 52 reviews
Michael Wakefield - September 29th, 2022
5 out of 5

Good selection of tubes at reasonable prices, very fast shipping. A great source for my amp building needs, Thanks!

tom colopy - September 13th, 2022
5 out of 5

best price around.

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

Walt Stewart - March 9th, 2022
5 out of 5

Top shelf! Nothing beats quality and performance. If you want the best, buy the best you can..

adammatza - March 9th, 2022
3 out of 5

Bought two of these, one was DOA. When they last longer than 0 days, that’s really nice, as they do the job well.

dazerp - February 15th, 2022
5 out of 5

They’re inexpensive and have never let me down, I use them in every build.

David J Feder - February 9th, 2022
5 out of 5

Reliable and great sounding!

Greg H - February 3rd, 2022
5 out of 5

I ordered 12 JJ 12AX7 tubes and they all were good. I test each tube in the first gain stage of a Blackface tube amp and all tubes woked great and no noise or microphonics. Very happy! Thank you!

KKCC - February 1st, 2022
5 out of 5

Very quick, accurate shipping! Thank you!

Mark O Matic - October 31st, 2021
5 out of 5

Sounds solid in my Fender Super Champ.

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.