This is a good Hickok 600A Tube Tester. It has been professionally calibrated. A new 8-pin Octal and 9-pin miniature socket saver have been installed. The case has normal wear
Restored and Calibrated Tube Testers.
This is a good Hickok 600A Tube Tester. It has been professionally calibrated. A new 8-pin Octal and 9-pin miniature socket saver have been installed. The case has normal wear