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Blues Jr. / Pro Jr. JJ Tube Upgrade Kit (2x EL84, 3x 12AX7)

Free shipping on orders over $29.99

$87.99

$ 42 .99 $42.99

In Stock
  • (3) T-12AX7-S-JJ
  • (1) T-EL84-JJ-MP (Apex Matched), which includes:<ul><li>(2) T-EL84-JJ </li></ul>


(3) T-12AX7-S-JJ (1) T-EL84-JJ-MP (Apex Matched), which includes:

  • (2) T-EL84-JJ
(2) T-EL84-JJ

Bob Lombardo
Reviewed in the United States on January 30, 2025
Better than the cheap Chinese tubes that were in it
Aaron
Reviewed in the United States on July 22, 2024
Refurbished my 95 blues junior with these bad boys. They sound better than a new amp. Highly recommended.
Glen Shaw
Reviewed in the United States on November 30, 2024
Service was fast and excellent. I was able to change out the old tubes with the new in a few minutes and they worked perfectly.
guitarman
Reviewed in the United States on November 14, 2024
Outstanding
P. Hammel
Reviewed in the United States on October 2, 2024
That sound is back, you know what I'm talking about. That sound that just pulls the notes right out of your soul. Great set of tubes. Checked them on my tube tester before installation and biasing and they tested as expected.
Danny Vessel
Reviewed in the United States on April 22, 2024
Very good product and were very easy to install. Replaced the old tubes in my Fender Blues Jr.
tony manning
Reviewed in Canada on May 29, 2023
they worked well when I put them in then after a couple of months I had what sounded like a 60 cycle hum I could not figure out where from so i put it into a guitar amp repair shop where they have all the test equipment the tech found a bad tube and advised I change them all I did an it still works great this solved the hum problem
R. J. Sprawls
Reviewed in the United States on August 29, 2020
I bought a stage right/monoprice 15W tube amp. It's a good budget tube amp, but it had this annoying issue with rattling when I picked a sustained note with some OD. It literally sounded like a PO'd rattlesnake. I thought it might be a mechanical issue (tube clips, reverb tank), but that was not it. It ended up being the cheap, unbranded Chinese tubes used.These tube fixed that and the sound is clearer and more pronounced.Best investment I made for upgrading this budget amp.
Jeff Kahl
Reviewed in Canada on July 27, 2020
Tubes work great.
David Dean
Reviewed in Canada on January 24, 2020
These tubes are amazing. Fast shipping and very well packaged. Will not hesitate to buy from this seller again.
Ryan
Reviewed in Canada on April 3, 2020
I popped these into my amp and noticed an immediate difference. The gain from my amp, my overdrive pedals, and my fuzz pedal were super cleaned up and sounded awesome. That said, these seem to be either warmer tubes or "not as high gain" as the original Groove Tubes - which for me was a happy accident. They sound AMAZING! The much needed warmth that the previous tubes didn't have.By the way, get your tubes from Tonal Tubes! They match the tubes for you and ship extremely fast.
Greg
Reviewed in Canada on December 10, 2019
The tubes arrived quicker then anticipated, and were in good condition. When they were installed the amp sounded good. I would purchase again.
kevindsingleton
Reviewed in the United States on April 17, 2019
I put these tubes in my Bassbreaker 007 (two 12AX7 preamp tubes and one EL84 power tube) because the power tube was overheating, glowing purple, and making awful crackling sounds. The amp had Groove Tubes in it, from the factory. These are JJs, and the preamp tubes are 5883s, not 12AX7s. I don't know if they are "functionally equivalent", but the amp seems a little "flatter", now, with less sparkle, and less thump, and perhaps a little less overall volume. I only needed the power tube, so I may put the original preamp tubes back in and see if that makes any difference. I bought this set so I'd have backup tubes, just in case, so I'm glad that this option is available. Overall, I'm happy to have the amp back in working order, and I can adjust the EQ to compensate for any perceived difference. It could just be that I'm being overly picky about the sound, or it could be that the failing power tube put out more volume and a better range of tones. Hard to say. Good product, good value. No complaints.
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