TDR power supply

[james_s]

I did a PCB for the time domain reflectometer presented by the Mr Carlson's Lab YouTube channel. He showed a PCB for it but I never found anywhere to download the board files so I did my own based closely on his design. This is just the power supply portion, I built the avalanche pulser circuit free form in a BNC connector shell without a PCB. I designed the board so that it can be etched as a single layer PCB if you would like to etch it yourself although it uses 0603 parts so you'll need to have the etching process pretty well tuned if you choose to do that. Both KiCad files and gerbers ready for production are provided here. This is a tested and working design, I've built one from this layout. This fits nicely in a Hammond 1590A cast aluminum enclosure along with a single AA or C battery holder.