Shaun Merrigan

Classic Electronic Restoration, Vacuum Tube Audio, Technical History, Photography

Tag: Roetest Tester

  • Roetest Tube Tester: 3D Printed Socket Boxes

    Roetest Tube Tester: 3D Printed Socket Boxes

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    The Roetest Tube Tester stands out as one of the most capable and thoughtfully engineered modern instruments available to anyone working with vacuum tubes. Designed by Helmut Weigl, it bridges the gap between classic tube‑era test gear and contemporary measurement practice: fully automated, PC‑connected, and able to characterize tubes with a level of precision that…

  • Vacuum Tube Tester: The Roetest

    Vacuum Tube Tester: The Roetest

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    Originally posted in March 2022 I recently completed the construction of a PC controlled vacuum tester: The Roetest. This is a computer-controlled tube tester which works as follows: Construction Details: Using the PC software, load the data for the TUT (Tube under Test). Pinout and base connection information is taken from an extensive database of…

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