EL34, 6CA7, KT77 Tube Types  - www.boiaudioworks.com from BOI AudioWorks
Top » Products in Category: EL34 / 6CA7 / KT77

EL34 / 6CA7 / KT77

EL34 Tubes

EL34 Tubes

EL34 is a high voltage, high output power tube in a compact package. EL34 tubes are often found in output stage of HiFi audio amplifiers as well as guitar amps such as classic Marshalls.

All about EL34 Tubes

What is the best EL34 tube? What is KT77 and 6CA7 tubes? Refer to our EL34 Guide for more information and answers to your questions.

Our EL34 tubes

Our EL34 tubes are burned-in for 24 hours for maxmium stability, at no extra cost. The precision matched sets come in pairs (2 tubes) and quads (4 tubes). We often have sextet (6) or octet (8) sets available, so please feel free to inquire.


Sino-China

EL34B-CH Matched Pair

Chinese made EL34B is an excellent value. We burn-in and match them at operating conditions seen in amps like Marshall's and Mesa Boogie's where these tubes excel.

This tube is made by Shuguang, and is sold under different labels (Valve Art, Sino, etc.)

In stock
EL34B-CH Matched Pair Buy Now $29.00

Sino-China

EL34B-CH Matched Quad

Price is for a matching quad of EL34B.

This tube is made by Shuguang, and is sold under different labels (Valve Art, Sino, etc.)

In stock
EL34B-CH Matched Quad Buy Now $58.00

Electro-Harmonix

EL34-EH Matched Pair

Excellent in guitar amps, Electro-Harmonix EL34 delivers drive and distortion in guitar amps at a very good price point. Price is for a matched pair (two tubes).

In stock
EL34-EH Matched Pair Buy Now $29.00

Electro-Harmonix

EL34-EH Matched Quad

Matching set of 4 tubes.

In stock
EL34-EH Matched Quad Buy Now $58.00

JJ/Tesla

E34L-JJ Matched Pair

Plug-in compatible with any EL34, but has slightly different parameter. Top choice amongst guitar players including Yngwie Malmsteen for clean yet thick tone. Excellent in audiophile applications with smooth but strong low mids. Price is for a matched pair.

In stock
E34L-JJ Matched Pair Buy Now $30.00

JJ/Tesla

E34L-JJ Matched Quad

Price is for a matching quad.

In stock
E34L-JJ Matched Quad Buy Now $60.00

Mullard

EL34 Mullard Matched Pair

This is a brand new design EL34 produced in Russia. It has similar construction as EL34-SV, but has different grid windings which gives it a definitely unique sound in both guitar and HiFi amps.

In stock
EL34 Mullard Matched Pair Buy Now $43.00

Mullard

EL34 Mullard Matched Quad

The price is for a matched quad of EL34 Russian Mullard.

In stock
EL34 Mullard Matched Quad Buy Now $86.00

Mullard

EL34 Mullard Matched Sextet

The price is for a matched sextet(6 tubes) of EL34 Russian Mullard.

In stock
EL34 Mullard Matched Sextet Buy Now $129.00

Svetlana

EL34-SV Matched Pair

This is the all-new Svetlana EL34 available only in US. Meticulous quality, excellent sonics. Awesome in guitar amps, and it sounds rich and smooth in HiFi Amps. Price is for a matched pair.

In stock
EL34-SV Matched Pair Buy Now $34.00

Svetlana

EL34-SV Matched Quad

Price is for a matching quad of Svetlana EL34.

In stock
EL34-SV Matched Quad Buy Now $68.00

TungSol

EL34B TungSol Matched Pair

TungSol EL34B provides a full rich body in guitar amps. In audio application, it has velvet smooth mid-range supported by good bottom and top end balance. This is an excellent EL34 if you are looking to upgrade from tiring stock tubes in your amplifier.

Price is for a matched pair (two tubes).

In stock
EL34B TungSol Matched Pair Buy Now $44.50

TungSol

EL34B TungSol Matched Quad

Price is for a matched quad (4 tubes).

In stock
EL34B TungSol Matched Quad Buy Now $89.00

SED/Winged-C

EL34-WC Matched Pair

More headroom, very nice dynamics, good bass response. Excellent for audiophile application as well as bass amp. Price is for a?@matched pair. -Limited quantity

In stock
EL34-WC Matched Pair Buy Now $105.00

SED/Winged-C

EL34-WC Matched Quad

Price is for a matching quad of SED EL34.

Sold out - Please inquire
EL34-WC Matched Quad

Electro-Harmonix

6CA7-EH Matched Pair

Electro-Harmonix version of Big Bottle 6CA7. This is different than the thin bottle EL34. It's a reproduction of Phillips 6CA7, bigger and more high power capable with tone closer to 6L6 voicing at EL34 output level. Price is for a matched pair.

In stock
6CA7-EH Matched Pair Buy Now $38.00

Electro-Harmonix

6CA7-EH Matched Quad

Price is for a matched quad.

In stock
6CA7-EH Matched Quad Buy Now $76.00

Electro-Harmonix

6CA7-EH Matched Sextet

Electro-Harmonix version of Big Bottle 6CA7. This is different than the thin bottle EL34. It's a reproduction of Phillips 6CA7, bigger and more high power capable with tone closer to 6L6 voicing at EL34 output level. Price is for a matched sextet(6).

In stock
6CA7-EH Matched Sextet Buy Now $114.50

JJ/Tesla

6CA7-JJ Matched Pair

6CA7 JJ is a replacement for any EL34 / 6CA7 tubes. It sounds just a tad bigger and bolder than regular EL34, and is very solidly built. Price is for a matched pair, inquire about quads.

In stock
6CA7-JJ Matched Pair Buy Now $37.00

Genalex

KT77 Gold Lion Matched Pair

The Genalex Gold Lion KT77 is a high quality tube with rugged construction. This KT77 gets rave reviews from our customers. with excellent dynamics and good high end resolutions. In a guitar amp, it gives good mids but with nice open brightness of 6L6.

In stock
KT77 Gold Lion Matched Pair Buy Now $95.00

Genalex

KT77 Gold Lion Matched Quad

Price is for a matching quad (4 tubes) of Gold Lion KT77 tubes.

In stock
KT77 Gold Lion Matched Quad Buy Now $190.00

JJ/Tesla

KT77-JJ Matched Pair

PENTODE, POWER
KT77 is an excellent sounding tube now available from JJ. It is a faithful reproduction of GEC KT77 which was designed specifically for audio purpose. KT77 can replace 6CA7 and EL34 tubes.

Note: Early production of JJ KT77 had thinner pins which caused issues in amps with worn sockets. Our current stock does not have this problem.

In stock
KT77-JJ Matched Pair Buy Now $39.00

JJ/Tesla

KT77-JJ Matched Quad

PENTODE, POWER
Price is for a matched quad (4 tubes) of JJ KT77.

Available to order
KT77-JJ Matched Quad Buy Now $78.00
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