This article will discuss repair and calibration of the Jackson 561 tube tester. High voltages are present, repairs should only be attempted by a qualified technician. Copyrighted, all rights reserved. Introduction The Jackson 561 appears to be a rare (uncommon) model. Very little documentation exists, and I have seen only a small number of them […]
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©2008, Bob Putnak. All rights reserved. This article discusses the B&K 707 Dyna-Jet Dynamic Mutual Conductance tube tester, including repair and calibration. The discussion is also relevant to the B&K 700 (the 700 is almost identical except for socket configuration) and some of the information is applicable to the B&K 650. The B&K 707 tube
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Some people believe that the Kenwood KT-917 is the finest FM tuner that was ever manufactured. This is truly the cream of the crop. Pulse Count Detector, high build quality, Made in Japan. A fellow in my community decided to trade-in this KT-917 for some quality tube audio gear. He had his eye on some
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This article will discuss repair and calibration of the Jackson 648-series tube tester. It will also discuss the procedure to eliminate the 1S5 tube from models 648 and 648A. High voltages are present, repairs should only be attempted by a qualified technician. Copyrighted, all rights reserved. Introduction The Jackson 648 was available in several versions,
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Sencore Mighty Mite solid-state tube testers (TC28 Hybrider, TC162, and TC154) are durable, easy-to-use, and test a wide variety of modern tubes (including modern sweep tubes such as #8950). They were VERY popular among old-timer technicians. For most people, they are a very good choice. Regardless of model, all the Mighty Mite solid-state models use
Sencore Mighty Mite TC28, TC162, TC154 Read More »
