Generator cSWD:



The cSWD generator is inspired by K. Meyl's SWD, which itself is inspired by a Tesla patent.
My goal was to make this machine at a lower cost (because Meyl's is really too expensive for me) to test its "therapeutic" use.

Documentation: PDF (french) English version: PDF (english)

The hex file to program the PIC16F1718 to control the µP board: HEX

The .BRD file (made with Eagle V5.1) allowing to manufacture 3 printed circuits of the µP board at OSHPark for approximately $ 40 (with shipping). You just have to upload this file to the OSHPark site, and the brass are usually delivered 15 days later.

The diagrams of the µP board (2 sheets):
the µP board: diagram1:
the RF amplifier board: diagram2

The diagram of the small keyboard board: keyboard

The flat spiral coil used: coil

The double-sided printed circuit:




I made the keyboard circuit in English milling on my CNC, but here is the BRD file to have it made by OSHPark.

The PB13 keys used for the keyboard are from ebay: link

For engraving of the key card on CNC: the DXF_carte_touches

Ditto for the receiver card: the DXF_carte_récepteur

The whole machine with cabinetry costs around 400 euros, making it in 3 copies.

Cost estimate and list of components at RadioSpares: Excel_file
Note: no shipping costs if you order from RadioSpares_particuliers on Sunday (for FRANCE).

D75mm golden stainless steel balls: ebay
 
Fabrication:

µP board sithed-on:


µP board components side (version 1.0):


Keyboard and receiver board:


PCB made by CNC
.