Schematic for an isolated, variable power supply. Includes voltmeter, ammeter and fuses. The safe way to work on vintage radios.
Plans for a simple, yet effective radio chassis holder. Easy to build with basic handtools.
Consolidated Test Data For Hickok Model 533A-600A-605A Tube Testers. All Hickok 533A-600A-605A test data I have seen, consolidated into a single .pdf file. The result of many, many hours of data entry from original charts. Over 100 pages.