12BH7 Vacuum Tubes > Electro-Harmonix and NOS in stock - BOI AudioWorks from BOI AudioWorks
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12BH7

12BH7A tubes from BOI AudioWorks 12BH7/12BH7A vacuum tube is a medium mu dual triode originally designed as a driver in TV sets.

It is capable of driving good amounts of current with low distortion, and is often used to drive power tubes in modern audio amplifiers.

Current production 12BH7A from Electro-Harmonix is a direct replacement for 12BH7 and 12BH7A tubes.

JJ ECC99 is a compatible driver tube. it can be used as a substitute for 12BH7 in many cases, but please refer to amp manufacturer's recommendation if you aren't sure.


Electro-Harmonix

12BH7A EH

Electro-Harmonix 12BH7A is a current production tube manufactured in Russia. It is a copy of GE Grey Plate 12BH7. 12BH7A-EH features long plate boxes for high current capacity and thick glass for lower microphonics.

12BH7A-EH is a drop-in replacement whereever 12BH7 or 12BH7A is called for.

In stock
12BH7A EH Buy Now $13.00

Electro-Harmonix

12BH7A EH Matched Pair

Price is for a matching pair of 12BH7 from Electro-Harmonix.

In stock
12BH7A EH  Matched Pair Buy Now $30.00

Electro-Harmonix

12BH7A EH GOLD

Factory selected gold pin 12BH7 from Electro-Harmonix

In stock
12BH7A EH GOLD Buy Now $24.00

Electro-Harmonix

12BH7A EH GD Matched Pair

Price is for a matched pair of 12BH7 EH Gold.

In stock
12BH7A EH GD Matched Pair Buy Now $52.00

JJ/Tesla

ECC99-JJ

ECC 99 was developed as a driver tube for JJ 300B. ECC99 delivers excellent linearity with very strong drive capability, making it suitable for driver application for DIY audio projects.

ECC99 is similar to 12BH7A, and is a drop-in for most applications. Please note that on some amps, 12BH7A is used in power supply circuits and ECC99 is not a drop-in. If you are not certain, please check with the amp manufacturer first.

In stock
ECC99-JJ Buy Now $16.50

JJ/Tesla

ECC99-JJ Matched Pair

Price is for a matching pair ECC99.

In stock
ECC99-JJ Matched Pair Buy Now $37.00

NOS OFFERINGS

The following is NOS and vintage tubes in this category. Due to the scarcity of some items, inventory will change constantly, so please check back often. Be sure to check out our NOS terms.

The photos of NOS tubes are representative samples and actual NOS tube shipped may vary. "Various" means we have multiple brands in stock.


Various

12BH7A US NOS

US made 12BH7A, perfect for driver stage such as those on McIntosh Amplifiers.

Sold out - Please inquire
12BH7A US NOS

Various

12BH7A US NOS Matched Pair

TRIODE, DUAL MEDIUM MU
Price is for a matched pair of US NOS brand 12BH7A.

Sold out - Please inquire
12BH7A US NOS Matched Pair

RCA

12BH7A MEX NOS

Brazilian/Mexican 12BH7A. Limited quantity.

Sold out - Please inquire
12BH7A MEX NOS

RCA

12BH7A RCA NOS

RCA branded, made in USA. Limited quantity

Sold out - Please inquire
12BH7A RCA NOS
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