Availability: In stock

Quick Overview

Very articulate, thick sustain. A customer favorite. Also known as EL34BW

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Ruby EL34 BSTR

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  • Ruby EL34 BSTR


The Ruby EL34BSTR's/EL34BW are a new high gain tube developed by Ruby and manufactured by Shuguang. They have a gold plated grid and extra thick glass. Perfect for modern gain, these have unique a wall of sound break up, very articulate. Ruby Tubes are matched both by plate current and transconductance and come with a 6 month warranty. For use in applications where the plate voltage is less than 450 vdc. For higher voltages, use the Ruby EL34BHT's.

Customer Reviews

Peavey JSX retube Review by Kevin
JSX sounds better than it ever has and I've tried a bunch. Thx for the advice. You'll hear from me again
Kevin (Posted on 5/24/17)
Marshall JVM410 Review by Todd
Recently had my JVM 410 retuned to your recommendations. Absolutely incredible results! Unfortunately, do to it sounding so good, I don't think the neighborhood likes either one of us!! Great job and thanks for the help! (Posted on 1/21/17)
Marshall DSL 40C Review by Chris
These are replacing the stock tubes. I had to hot of a bias on them. I Chose the Rubys after hearing many of the tubes they offer are the same as theTAD. They have a nice punch. Very clear and lively compared to the stock JJ's. With a 6 month warranty I would buy Rubys from Doug again for sure. I also purchased pre amp tubes. (Posted on 11/20/15)
Mesa Boogie Single Rectifier Review by Greg
Hey Doug,
Thank you! I just installed the single rectifier tube kit this morning.
It gave me exactly what I've been needing from my amp!
I switched from the original 6L6 tubes to the EL34's. It gave me the metal
punch I've been looking for and the pre amp tubes took the brashness out of the amp.

Thanks again,
Greg Ort guitarist Autoerotica (Posted on 3/30/15)
Carvin Valvemaster retube Review by Brian
Hi Doug, Just a note to say that the Ruby EL34's and 12ax7 Tone Kit that you recommended sound great in my Carvin Valvemaster. I played through it at a recording session last week, and the Drive channel had an explosive, shimmery sound. I love it! (Posted on 3/24/15)
Mesa Boogie MK V Review by Divy
Hello Doug,

Thanks a lot for these new tubes ! My Mark V sounds so great now ! All channels are hotter, richer, louder, with a perfect response.

This is exactly the improvement I was looking for.

Thanks again,

Divy (Posted on 10/13/14)
Mesa MK V retube(RUBY EL34BSTR + 7 x 12AX7 tone kit) Review by Lubo
Hey Doug,

I am ecstatic! My amp has never sounded so good! The clean channel is cleaner at higher volumes and distorts only when I want it to. Love the harmonics on all channels! The mesa EL34s made my clean channel not clean any more. My cleans are back! As good as the 6L6s. Overall, lower noise at high volumes and high gain across the board… I do not need to even look at any other amp now. Works really nice with any kind of boost on any setting.

I will be a repeat customer for sure!

Thank you,
Lubo (Posted on 9/20/13)
Orange Rocker 30 retube Review by Rick
I finally ordered the tubes you recommended for my Orange Rocker 30. What a difference! They amp just came back to life and has never sounded better. This is what an Orange is supposed to sound like! The tubes got here in Southern Oregon in three days and I could tell that extra care was taken to pack them so they would survive the trip. Thanks again, you guys rock, and now, so do I!
– Rick M.
Ashland, Oregon (Posted on 8/26/13)
Mesa Boogie MKiii retube Review by Drew
Hi Doug,

These turned my old Boogie Mark III into a monster. Thanks again for more awesome tubes. Drew (Posted on 5/19/13)
Egnater Renegade retube(Ruby 6L6GCMSTR, Ruby EL34BSTR, 6 x 12AX7 tone kit) Review by Asa
The tonekit preamp tubes and the recomended power tubes sound amazing. I can't thank you guys enough. (Posted on 1/28/13)

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