Surf Pi 1.2 Kit -

It sounds like you’re asking about the — a popular DIY pulse induction metal detector project, often sold as a PCB + components kit.

If you’re looking for an affordable PI project that actually works, the 1.2 kit is hard to beat. I paired it with a 8″ mono coil — air tests ~25cm on a gold ring. surf pi 1.2 kit

Finally finished assembling the Surf PI 1.2 from the classic Silverdog / Geotech design. Got the PCB and component kit online. It sounds like you’re asking about the —

Anyone else built one? Happy to share mods. surf pi 1.2 kit