I was looking through the Yahoo group lost_technology and came across an article from the Wireless World, 1923 about the Russian O. Lossev’s experiments with crystals (the mineral kind like those used in detectors). He got best results with zincite and a carbon or steel whisker. I have a galena crystal, but he got poor
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I came across this column in talkingelectronics.com where the author discusses small signal and medium signal amplifiers. This medium signal term is one that I’ve never heard used before, and I’ve read a lot of literature that uses the small and large signal terms. I’ve heard the small signal term applied when an incremental term
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Note (from yesterday’s blog): I have seen many good Joule Thief projects mistakenly use the 1N4003 series rectifier, which is made for 50 or 60 Hz, and has a slow recovery time. I have put a 1N4003 in parallel with a 1N4148, and found that the Joule Thief’s performance often drops. This is because it
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