Uploaded October 2024 | Updated September 2026, 1 week ago

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A 2024 update that includes discussion around using Solid State rectifiers in a TV-7, new tips to help ease the calibration process, and enhanced instructions to calibrate your TV7 style tube tester.

Note: If you calibrated your unit only using Part 1, it is still valid and doesn't need additional calibration. This video was about enhancing the instructions to make it easier.

If you need calibration tubes, find them here: ebay.com/str/blueglowelectronics

Link to new document
blueglow.net/tv-7