Harma 5U4G Rectifier Valve Tube NOS Sounds Amazing for Guitar Amplifiers & HiFi

Unused, Fully Tested & Well Sought-After. At least £10 cheaper than other places (if you can find it!)

Manufacturer's Blurb:

The Harma 5U4G is made to full military grade specifications and this sturdy construction makes this the ideal choice in Mesa Boogie dual and triple rectifiers or any high end audio application.

All Harma rectifier valves undergo testing under real working condition and the voltage drop is measured between each plate and the cathode. This ensures correct conformity to design parameters under working conditions.