JJ Electronics Amplifier Tube (T-EL34-JJ)

These fit perfectly and sound wonderful. nice upgrade from stock tubes on an old Dsl40c

I slapped these into my Laney Ironheart amp to replace the 6L6 it came with, and it took on a much meaner sound. (Laney has an on board bias selector to accommodate either set of tubes so don't freak out.)I've used JJs in my others amp head and definitely recommend them.

Great seller!! Quality JJ tubes!! Excellent price!! Very happy with purchase!! Thanks!!

Good quality

If you know anything about this particular model of Marshall the MA50H most people think at the clean channel is great and the high gain channel is lackluster but let me tell you something when I put these tubes in and biased them to the correct settings this amp sounds phenomenal especially compared to how it sounded before I got it I think that they were biased pretty cold on the original ones and that is probably the case with any other one of this model amp and their factory settings and tubes but it absolutely sounds awesome on the high gain channel now!!!

This is my first bad experience with amazon prime. This fragile vacuum tube was shipped in a thin envelope. I had purchased pre amp tubes from amazon recently and they were packaged correctly and work fine but this JJ EL 34 was packaged so poorly that it was broken by the time it arrived. As for performance I can say these tubes sound good because I have used them before in my Marshall's but they are not amazing power tubes. These are good for those on a budget. As for ordering from amazon be careful. Who knows how they will pack a thin glass tube that is extremely fragile.

Not sure my Blackstar HT Club 40 sounds as good as it did on the old set, but I needed some and these are what I could get quickly. They work fine.

The media could not be loaded. I was lost after my amp started dying after playing for only a few minutes. So I researched and found the company that sells these tubes here on Amazon. And I called to see if they would fix the problem. They were REALLY nice, knowledgeable, and dedicated to customer satisfaction. So I bought them, and couldn't be happier. Attached is a short video clip of them in action. Although I put them into action in March of 2023, I wanted to wait until I had some serious time on them. And now I do! Here they are cranking in May of 2023. I wish I could give them 12 stars out of five!!! THANK YOU!!!