Amplifier Replacement Tubes

R.F. Double Triode BaseMade in Solvakia.

The 3rd offering from the same Russian tube factory that builds the R1 and R2, but this one has medium sized plates and a nice balanced tone. Good midrange and average gain. Like all Russian preamp tubes, the sound is a bit lacking in ...

JJ/Tesla 6V6GT. Made in Slovak Republic. Has spiral filament.

A.F Double Triode Base: Noval.

6L6 GC: A.F. Beam Pentode Base: Octal

EL34 Slovakian-made Power Tube.

R.F Double Triode Base: NovalMade in Solvakia.

Double anode rectifying tube, GZ34. Made in Slovakia.

Single-pack analog vacuum tube "blue" by Roberts RetroValave. Low gain.

Single-pack analog vacuum tube "amber" by Roberts RetroValve. One standard gain tube.

Single-pack analog vacuum tube "red" by Roberts RetroValve. Red hi-gain tube.

New tube from Russia. Slightly lower gain, quicker compression than GT 12AX7. Great for most Fenders, may not be well suited for high gain Fender type amps (such as Boogie).

Slovakian made with high power and very agressive dynamic tone...punchier sounding but still a sweet tone. New design with more power and heavy duty components. High power type with more highs and lows than other 6L6 types.

Slovakian made with high power and very agressive dynamic tone...punchier sounding but still a sweet tone. New design with more power and heavy duty components. High power type with more highs and lows than other 6L6 types.

Most common low power pentode, popularized in early Vox AC30 amps. Rediscovered by Matchless amps and now currently used by nearly every tube amp company. Quick, soft overdrive distortion, great for recording.

New European version with even more response, higher power and warmer tone. Most common low power pentode, popularized in early Vox AC30 amps. Rediscovered by Matchless amps and now currently used by nearly every tube amp company. ...

GT reissue which have a majority of USA components made on the original General Electric machines, the original tools, dies, materials and processing formulas as acquired from the liquidation for the last American tube factory in Owensboro ...

GT reissue which have a majority of USA components made on the original General Electric machines, the original tools, dies, materials and processing formulas as acquired from the liquidation for the last American tube factory in Owensboro ...

GT reissue which have a majority of USA components made on the original General Electric machines, the original tools, dies, materials and processing formulas as acquired from the liquidation for the last American tube factory in Owensboro ...

The GTEL34M is an exact replica of perhaps the most famous power tube of all time, the EL34. Made by Mullard in the ‘60s, it was the stock tube in all the early Marshall and HIWATT amps. Mullard produced this tube for nearly 15 ...