Expected in-stock mid-January 2026. "Join waitlist" ↗ for an email notification.

Yes, it really does look like the photos.

This is a device for creating low-pressure xenon plasma toroids. By generating an oscillating, high-voltage radiofrequency magnetic field, xenon gas is wirelessly ionized into an inductively-coupled plasma.

Other enthusiasts have built similar toroid drivers, but mine has some special features:

• Sleek pcb-based design, including an integral primary drive inductor. No spirally coil!
• Pushbutton arc-start. No need for a external high-voltage zap!
• Adjustable onboard constant-current buck regulator.
• Designed for 65W USB-C.

The sky-guided plasma toroid is an open-source project. Full documentation, schematics, component lists, fabrication files, and more are available in the Codeberg repository.

What you'll get

This listing is for a plasma toroid driver kit, not a finished product. You'll need to obtain a suitable xenon globe, 3D print the support structure, hook up a power source, and do some minor mechanical assembly.

The following parts are included:

• Assembled main driver circuitboard
• Anodized aluminum heatsink
• Premium 40mm cooling fan
• JST-PH power connector plug
• m2 thread-forming assembly screws (12 count)

Some required parts are not included:

• A 1-liter / 13cm xenon globe. This globe must be filled to no more than 20 torr pressure. Higher pressure globes won't work. Ask your supplier before ordering!
• 3D printed support structure -- requires about 100 grams matte black PLA (or similar), printable area ≥ 190x190mm
• 20V / 3A USB-C power delivery "trigger" module. Mounting holes are designed for the Adafruit HUSB338 board, but other boards will work if glued to a printable adapter plate
• 65W (20V / 3A) USB-C power supply + USB-C power cable
• Alternately, a bench power supply capable of at least 3 amps at regulated 20V DC

Required Tools

• Precision screwdriver set (1.3mm hex, 2mm flathead).
• May need minor soldering for your usb power adapter

Cautionary Notes

This is an experimental radiofrequency device. Do not leave it running unattended, and do not run near any sensitive or safety-critical electronics (including personal medical devices). Some areas of the board have potential to cause shock/burn if touched during operation.