Doug Coil Machine Buy Link

Look for hand-wound copper coils. They should be heavy and well-insulated. Some builders offer "flat" coils (pancakes) or "tube" coils.

Most reliable machines use a high-end audio power amplifier (often brands like QSC or Crown ). It must be capable of handling the low impedance of the coil. doug coil machine buy

Doug Coils are not FDA-approved medical devices. They are sold as "experimental" or for "research purposes." Look for hand-wound copper coils