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5C22 hydrogen thyratron tube kuthe labs ~ used


5C22 Hydrogen Thyratron Tube Kuthe Labs ~ Used
This 5C22 (AKA QK50, H1000, HT415) hydrogen thyratron tube has been stored away for years. Made in the U.S.A. by Kuthe Laboratories, ITT Components Division. Tubular bulb with plate pin on glass stalk, large 4-pin base. My Hickok tester does not have settings to test, looks good.