This nifty DIY coil hand gun is fully-functional and has “dual energy shot levels, full power and partial power”. Video demonstration after the jump (hand gun at end of clip).
The wish list follows: “Fast Charger and be small enough to fit in a pistol”, yep. “Charger automatically charges upto the voltage I want, stops, then regulates”, yep. “Controllable fire sequence, I want to use a computer to test by adjusting on/off times to the microsecond”, yep.