This article discusses repair and calibration of the B&K 600 / 606 tube testers. Both models can share the same tube setup data book, and therefore both models are functionally equivalent. Model 606 will be example shown in this article. Electrical voltages are present, repairs should only be attempted by a qualified technician. Copyrighted […]
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This article discusses repair and calibration of the Signal Corp I-177 tube tester. Serious electrical voltages are present, repairs should only be attempted by a qualified technician. Copyrighted by Bob Putnak, all rights reserved. Introduction Model I-177 is a very old US Military dynamic mutual conductance tube tester that was used during World War II
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This article discusses the solid-state B&K 607 / 667 tube testers. Both models use the same tube setup data book, and therefore both models are functionally equivalent. Model 607 will be example shown in this article. Electrical voltages are present, repairs should only be attempted by a qualified technician. Copyrighted, all rights reserved. This series
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I recently found a February 1940 Jackson tube tester modernization bulletin. This bulletin explains the modernization options available for Jackson tube tester models 627, 627-C, 630, 633, 634, 634-C, 634-D, 635, 637, 680. It also includes the wiring diagram to install a Loctal socket into models 627, 630, 633, 635, 680. Very interesting bulletin for
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This article discusses repair and calibration of the older tube-based Sencore Mighty Mite tube testers that use the 12AU7A tube inside, models TC130, TC136, and TC142. High voltages are present, repairs should only be attempted by a qualified technician. Copyrighted, all rights reserved. Introduction Sencore Mighty Mite testers employ a Cathode Emission test circuit, with
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