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Report Review for product Vacuum Tube - EL509, JJ Electronics

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Use these tubes in my The Beast Jr from Transcendent. they work great got the APEX matched, adjusting bias was a breeze and stayed stable after that.
Had an issue with a set, send the tubes back,they were verified and got fast a new set send back to me excellent service. There for i buy all my tubes here.

Robbert - August 20th, 2020