Availability: In stock

Quick Overview

Very articulate, thick sustain. A customer favorite. This Ruby tube is a Sino, Chinese, Shuguang equivalent.

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Ruby EL34 BSTR

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  • Ruby EL34 BSTR


The Ruby EL34BSTR's 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.

Customer Reviews

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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