$230 Micsig MDP700 High Voltage Differential probe review and comparison with the older DP10007 and the EEVblog HVP70 probe. Have Micsig fixed the CMRR issue that plauged the DP10007 design? https://s.click.aliexpress.com/e/_DnNvolN CMRR measured and explained: https://www.youtube.com/watch?v=vDe_BHvRpks GaN MOSFET Experiemnts with fibre optic high voltage probe: https://www.youtube.com/watch?v=qgZgSDqmVMg Reverse engineering the DP10007: …

Is it worthwhile to run water through your rooftop solar panels to cool them down while pre-heating your hot water? Or maybe heating your pool? Also solar air and water heaters. As always, YMMV, but this is why I didn’t do it. Answering a Twitter question: https://x.com/axion2003/status/1812740667367460971 Heat Pump Hot …

A Konika Minolta bizhub C284e A3 colour photocopier found in the dumpster. Enjoy Dave’s embarrassment at the redundant teardown. Ebay listing for original modern art print: https://www.ebay.com.au/itm/226241082176 Forum: https://www.eevblog.com/forum/blog/eevblog-1629-dumpster-find-a3-colour-photocopier/ Podcast: Download

Reinstallation of the 5kW Enphase microinverter home solar power system, and installation of a new 5kW Deye Hybrid inverter string system did not go well… Forum: https://www.eevblog.com/forum/blog/eevblog-1628-home-solar-re-install-upgrade-fail/ Deye user manual: https://www.sunovagroup.com.au/wp-content/uploads/2023/12/SUN-3-6K-SG04LP1-AU-1.pdf 00:00 – New Trina, old LG, and even older LG panels 03:44 – Salute the old Sunnyboy 3kW string …

A talk with Scott Williams from Xentronics at the Electronex show about freelancing and running an electronics design consultancy business. https://xentronics.com.au/ The Amp Hour Talk 1: https://theamphour.com/624-design-manufacturing-consulting-with-scott-williams-from-xentronics/ Talk 2: https://theamphour.com/645-moving-down-the-stack-with-scott-williams/ Forum: https://www.eevblog.com/forum/blog/eevblog-1627-electronex-engineering-consultancy-with-xentronics/