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EL34 Review Chart

(View our complete selection of EL34 / 6CA7 / KT77 vacuum tubes)

Test Amps:

1973 Marshall Super Lead model 1959: This amp is completely stock using NOS pre-amp tubes. The sound was reproduced through a 1971 Marshal cabinet with 4 Celestion G12M "greenback" speakers.

1970 Marshall Bluesbreaker 2x12 combo, Class A Combo: Designed and built by Bernard Raunig. This is a true single ended class A amplifier, using a 5Y3 rectifier and a single 5691 pre-amp tube. With a volume and single tone control this amp really lets you hear the tonal differences between the tubes.

EL34 comparison at a glance

Rated 0 - 5 where 0 is Poor and 5 is Excellent

Grey rows represent discontinued and unavailable tubes.

ManufacturerModelMicrophonicsMechanical Noise

DetailHarmonics
Electro HarmonixEL34EH

4

4

5

4

Electro Harmonix6CA7-EH

5

5

4

4

Gold LionKT77

5

5

5

4

JJ ElectronicE34L

4

4

3

4

JJ ElectronicEL34-II

5

5

5

4

JJ ElectronicKT77

4

4

5

5

JJ Electronic6CA7

5

5

4

4

MullardEL34

4

5

4

5

Preferred SeriesEL34

5

5

5

5

SED / Winged "C"EL34

4

4

5

5

ShuguangEL34-B

4

5

4

5

SvetlanaEL34

4

5

5

5

Tung-SolTung-SolEL34-B

5

5

5

5

Siemens / RFTEL34

5

5

4

5

SovtekEL34WXT

4

4

4

4





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