Stimer pickup attempt

[cenizasblancas]

Hi and happy Christmas to all!! i want to know if someone knows about Stimer pickups, i want to build 2 pickups for my acoustic guitar and i can't found much info about the inside of the pickup. I imagine that i can use an alnico bar magnet or a neodimium magnet like Krivo pickups.

What do you think?

https://youtu.be/4RGcbVFimOM