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    • Groove Tubes

    Groove Tubes Mod Sockets 928-PR Substi-Tube

    Sunday, January 6th, 2008

    Here’s a video I did in my shop to demo the groove tube sockets which are pretty cool. The compressor on the video camera was squashing any ability to really hear the amp. You can hear it ease up at the end. I was showing amplitude of the voltage/power before and after.