JJ Electronic is a world-renowned manufacturer of vacuum tubes which has been building professional grade components for guitar amps and Hi-Fi since 1993. For many, they are the first choice when looking to upgrade.

JJ Electronics 5U4GB rectifier.

Vacuum Tube Packaging Guarantee

We take great pride in our packaging and take every precaution in ensuring that your tubes reach you in perfect condition. We are so confident that your tubes will reach you intact that we promise to replace any damaged tubes or give a full refund.