Handheld Tesla Coil

It’s a bipolar DRSSTC with one secondary driven and their bases connected. Power comes from 3 12V 7AH gel cells in the backpack stepped up to 250 VDC. The longest arc I measured so far was 20.5 inches. I haven’t tried messing with the coupling yet; this coil might put out a few more inches of arc. Details here: Power draw: 200-250 watts Primary Fres: 295 KHz Primary capacitor: uF IGBTs: HGTG30N60B3D (TO-247) Filter capacitors: 10 parallel