Jan Lategahn (Germany) has put together a series of articles and links describing simple ways to calibrate amateur electronic instruments with a fair degree of accuracy without having to spend a bundle on a professional calibration lab. Methods and devices include DC and AC voltages, resistance, current, RF level, and frequency. Above are Jan’s homemade resistance and DC reference voltage calibrators.
Calibration standards
Gareth Branwyn is a freelance writer and the former Editorial Director of Maker Media. He is the author or editor of over a dozen books on technology, DIY, and geek culture. He is currently a contributor to Boing Boing, Wink Books, and Wink Fun. His free weekly-ish maker tips newsletter can be found at garstipsandtools.com.
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