Hootennanny MK II .
Photo is of preliminary apparatus in darkened environment, during pulse output.
Rack sticking out of pile of junk contains disgustingly oversized power supply and pulse forming circuitry. Ionizing radiation illuminates throat of horn, and casts sinister shadows. It also gassed the active device, displeased the computer and the power meter, and ruined the makita drill in the foreground. We usually show how to make everything, but not this. We scaled the power way down, and now the power supply not only runs on 110VAC, but fits on the rail.