JJ Electronics Amplifier Tube (T-6V6-S-JJ-MP)

<3

These were given to me as a gift from a trusted fellow guitarist. It was a brand new matched pair and they kept blowing fuses (3 in a row) in my amp (Fender Excelsior, fixed bias). I put back my old Tung Sol 6V6’s, the problem went away. Brand new tubes and they already had a major short? Seems like a case of really poor QC. From what I hear these give more headroom than Tung Sols, but I couldn’t even get them to warm up.

I recently acquired a 1965 Fender Deluxe Amp. After going thru and thouroly cleaning, I noticed one of the output tubes, 6v6, was visibly blown. So, I started researching replacement tubes online at all of the music outlets. Then, for some reason, I happened to search AMAZON and was happily surprised that they carry all sorts or tubes and musical gear! Ive read all kinds of mixed reviews about all the tube brands, including the JJs... Then I discovered that, like guitar strings, there are only a few manufacturers of vacum tubes left in the world... The price was right on the JJs so I gave them a shot. All I can say is, all of the hype Ive heard all of my 30+ years of being a professional guitarist, about there is nothing like playing thru a 65 Fender Deluxe... Was all very true!! I installed the JJs, plugged the old girl in, and was and still amazed at the most awesome guitar tone Ive ever played thru! Getting that tube tone is no problem for me with all of the great Line 6 and other emulation technology amps on the market, But, nothing can compare to the FEEL of playing thru tubes! The JJs work and sound great!! Also, at an affordable price.

Product as advertised shipped fast!

what can I say, these work great. My NOS RCAs burned out due to a power surge These sound good

Purchased for a VHT Special 12/20 head, and very pleased with the results. These tubes really opened up the sound, and generally you can hear/feel the extra punch now. I was looking to increase clarity/articulation, as this amp is known to be a little dark with some configs. While not as helpful as my EQ pedal, these tubes did, IMO, improve the overall quality of the tone. If I could A/B tubes easily, Ive absolutely no doubt in my mind these are superior to the stock tubes.

[Used in a Ceriatone Dumble Overdrive Special style amp substituting for 6V6gt.] Outstanding cleans: nice crisp highs and a bit more bass than I heard with my old-stock (other brand) 6v6gt tubes which had plenty of life left in them... just chalk it up to design differences? The new JJ tubes even have more clean headroom and theyre a little quieter at high volume = more on the top and bottom! That surprised me! The trans-conductance matching was perfect (confirmed on my own tube tester and in-circuit) and this let me dial the bias in right where I wanted it. This matching is especially important to avoid clipping from a tube that is out-of-range, otherwise youll compromise your bias setting with one tube too high and the other low. I set these quite a bit colder (19.5mv) than the prior set (straddling @ 24mv) but they JJs showed no signs of clipping on the oscilloscope and were pleasing to my ear. Note that these JJ 6v6s tubes are physically larger (longer/taller) than typical 6v6gt tubes by about 1 (2.2cm). For most it wont be a problem but if youve *very* tight clearances in your amp chassis it might be an issue so please be aware. Id rate this tube set + matching service six stars, if I could. Im tempted to buy a spare set now just to put them aside for the future.

I replaced the tubes in my Tweaker a few months back but everything I tried was microphonic and extremely noisy. Then I did some research. I have an early model Tweaker which runs a lot of current through its power tubes. Bruce Egnater himself recommended JJ 6v6s for reliability, and I can understand why. As soon as I put these in my problems disappeared.

I expected more power.

Garbage. Stopped working.