Doug Coils are not FDA-approved medical devices. They are sold as "experimental" or for "research purposes."
Groups like "Lyme-Coil" or "Doug Coil Machine Users" often have members selling used machines. Warning: Always verify the "switch bank" and capacitor health on used units. ⚖️ 4. Essential Evaluation Checklist doug coil machine buy
Does it cover the full spectrum (from roughly 20Hz to 2000Hz)? Doug Coils are not FDA-approved medical devices
Are they high-voltage AC capacitors? (Cheap DC capacitors will blow out). ⚖️ 4
You generally have two options when looking to acquire a Doug Coil:
Purchased from independent craftsmen who specialize in assembly. This is the most common route for those without electrical engineering skills.
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.