Are JJ valves any good?

JJ EL34 tubes are very reliable and sound good too, but be careful to get EL34 tubes and not E34L tubes unless your amp was specifically designed for them. Tung Sols are good but a bit more expensive.

How long do JJ EL84 tubes last?

Now after about 20 minutes of playing, the volume drops down and the sound is dull. I can then play my Led Paul at the same volume as the Strat. I know from past experience that usually means that the power tube are wearing out. I estimate that I have somewhere between 100 to 120 hours on these tubes.

Are JJ tubes still available?

Nowadays, JJ electronic offers an assortment of more than 40 types of vacuum tubes.

What do EL84 tubes sound like?

EL84 tubes typically exhibit a “chime-y” and bright high end, as well as a similar mid-range punch as an EL34, and a warmer, but still powerful low-end sound.

Where are JJ valves made?

JJ Electronic, s.r.o is a Slovak electronic component manufacturer, and one of the world’s remaining producers of vacuum tubes. They are based in Čadca, in the Kysuce region of Slovakia.

What tubes did dumble use?

Re: Dumble tube choices Mullard ECC83, GE 12AX7, GE 12T7, GE 12AU7, EI 7025 (80ies Telefunken clone), Amperex ECC83, Mullard EF86 (last version), GE12BH7, GE12AY7, GE 5751, Philips 7025, Sylvania 7025. Power amp: GE 6L6GC, Philips Sylvania 6l6GC STR, Sovtek 5881, GE 6550A, Chinese KT88 from the late eighties.

Are JJ tubes made in China?

They are based in Čadca, in the Kysuce region of Slovakia. Most of the products that JJ offers are audio receiving tubes.

Are JJ tubes made in Russia?

This is because JJ tubes are manfactured with some of the same tooling as Tesla tubes. The old Tesla tube fabrication machines were physically moved from the Tesla Rožnov factory, Czech Republic by Jan Jorgo (JJ) to Cadca, Slovakia (some 50km east) in the early 1990s.