Will this set work in a vox ac15?

If your amp requires 3x12AX7's and 2x EL84's then this set will work perfectly.

Who or what is tesla? this was previously listed as a jj set, now it says jj/tesla.

Nikola Tesla was an inventor, electrical engineer, mechanical engineer best known for his contributions to the design of modern alternating current. How JJ co-opted his name is unknown to me. As for the tubes I am not a fan. I tried them several times in different amps and beyond those suffering infant mortality (nearly immediate failure) I found them to be short lived overall. I pretty much stick with TAD (Tube Amp Doctor) tubes these days. They sound good and the failure rate is very low. Strictly my opinion, but I hope it helps you with your decision.

Will these work for a blues junior 1?

They work and still do, a 12AX7was bad, so bought a set ans have new extras, different valve/tubes. they work fine

Coocheer Blues Jr Pro Jr Jj Tube Upgrade Kit 2x

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Description

🎶 Unlock your amp’s soul with the ultimate tube upgrade!

TRUSTED BY PROS - Join thousands of musicians who swear by this tube upgrade for authentic sound.
PLUG PLAY UPGRADE - Easy installation for instant sonic transformation in your Blues Jr. or Pro Jr.
PURE VINTAGE WARMTH - Experience rich, warm tones that breathe life into every note.
ENHANCED GAIN CLARITY - Clean up your overdrive and fuzz pedals with superior tube gain control.
PRECISION MATCHED TUBES - Apex matched EL84 tubes ensure consistent, reliable performance.

The COOCHEER Blues Jr. / Pro Jr. JJ Tube Upgrade Kit includes three T-12AX7-S-JJ preamp tubes and two apex matched T-EL84-JJ power tubes, designed to deliver warmer, clearer, and more dynamic tones. This kit enhances gain clarity and tonal warmth, making it a perfect plug-and-play upgrade for Blues Jr. and Pro Jr. amplifiers, favored by musicians seeking authentic vintage sound with reliable performance.

Specifications

ASIN	B00EJXZIP6
Batteries Included	No
Batteries required	No
Best Sellers Rank	73,800 in Musical Instruments & DJ ( See Top 100 in Musical Instruments & DJ ) 348 in Amplifier Accessories
Customer Reviews	4.7 4.7 out of 5 stars (317)
Date First Available	6 Feb. 2014
Item Weight	68 g
Item model number	4308828235
Product Dimensions	17.78 x 12.7 x 17.78 cm; 68 g
Quantity	1
Volume	245 Cubic Inches

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

Description

Specifications

Common Questions