.:madworm:.'s photos with the keyword: 9V

Dummy Load - backside

Dummy Load - backside

.:madworm:.
15 Jun 2012 194
Believe it or not, but I couldn't find a battery holder with usable CAD drawings.
YauDL - brainfart

YauDL - brainfart

.:madworm:.
19 Jun 2012 175
I added a 3V battery to pull the p-ch gate to -3V. It improves the R(ds)-on at small positive input voltages, but completely defeats the reverse polarity protection. ARGH. I do have to add a Schottky diode at last.