J.J. Matched Pair Vacuum Tubes, JJ EL84 6BQ5, Glass, Transparent, Instrument Amplifier Tubes, Hardware Components, 1

Had a VOX amp not working. Assumed it was tubes. They lit up but read they could still be bad. Replaced with these and unfortunately problem still was there. Did not have a tube tester and I am cautious of tubes. Ended up being the coil in speaker not working. Reclined speaker and it is producing beautiful sound but not by me. Still horrible playing the guitar.

Great product quick delivery

Made my inexpensive Right Stage amp sound better.

I picked up a set of these to replace the stock 6n24n power tubes that come in the ZWjr after speaking with DrZ support. They sound fabulous and add a little more top end sparkle that I feel I could not get before. Happy with the purchase and a much less expensive alternative to the 6n14n

Needed to replace the tubes in my Blues Jr. after performing upgrades for biasing, tone stack and caps and input jack. Can definitely tell the difference between the old and new tubes. Would purchase again.

A stock power tube in my Vox AC10C1 from 2018 finally went bad. The local shop wanted $70 for the same matched set. I picked these up for almost half the price! I've been playing it for about an hour now. Amp is back up and running and it sounds great! I couldn't be happier!

Quick shipping, but poorly packaged. Made the AC10 sound much better

Sounded great... did not last. Not even 7 months after installing, biasing to 24ma, and barely using the amplifier (home environment, no gigging/transporting, low volumes, very infrequent use) I noticed the valve indicator LED on my amp was reading a fault. Went to investigate/re-bias as necessary, only to find that one of the valves had actually busted right open, I actually had to pull the base out of the socket using pliers so as not to cut myself on broken glass. Had to make an emergency trip to GC to replace with something else. This amplifier was absolutely babied, there is no reason for this to have happened.