How to convert a dumpster Sony CRT TV into a retro computer RGB monitor. Going through the design considerations, schematics, datasheets and the “jungle chip” and how to feed in the RGB signal and switch it. Also a look at the the old school CGA video interface on an IBM …
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How good is your existing oscilloscopes FFT function with the $10 DIY EMC H-field probe compared with a dedicated spectrum analyser? Dave tries the DIY EMC probe with half a dozen different low cost scopes, so it turned into a bit of a practical FFT shootout: Rigol DS1054Z Siglent SDS1202X-E …
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A follow-up to the Yihau/WEP SMD Station Meltdown, testing the heater drive TRIAC and looking at the brushless DC fan motor. And how a TRIAC and SCR works. DaveCAD github Forum HERE Podcast: Download
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Is a 1 CENT LDO voltage regulator any good? Dave tests the Shen Zhen Fine Mad! SC662K 3.3V LDO from LCSC a.k.a. http://www.superchip.cn Forum HERE
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David looks at the pins on the Padauk PMS150 programmer for potential reverse engineering. TLDR; It doesn’t look easy to reverse engineer this protocol, it’s messy with lots of voltage levels, as Padauk said it would be. Just buy the programmer for now! There is also a Flash/EEPROM re-programmable version …
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