Or something else that would be worth investigating
if one of these could be taken down to bare board that would be interesting to see, they are quite thick, and covered in resin.
They would be a large implant, but no larger than some of the Disc Flexies.
I carry one of these with me, because they work REALLY well.
@Hamspiced
I know you have already invested a lot of time abd money into your LF repeater project
I doubt Proxgrind will release their design files, but maybe it will give you some ideas for your LF repeater project.
“The LF coil has high Q, high sensitivity and long luminescence distance using 6-layer plate technology”