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Sacred Geometry

Plate ICatalogue of instruments

Precision instruments for intentional frequency work.

Rodin coils with quartz-crystal-lined cores and the SG102 three-channel control unit — alongside special-order research equipment and the Frequency Atlas, a free listening atlas of tonal traditions.

View the instruments Open the Frequency Atlas

For personal exploration. Not medical advice.

Plate IIControl unit

The SG102, a three-channel pulse controller.

Built to drive your own coils, Helmholtz pairs or mats. Output voltage and current are both adjustable, so the unit can be set to suit the coil — the included 24 V adapter sets only the input ceiling.

The SG102 control unit on a dark desk: a black enclosure with two lit digital displays — a voltage and current module on the left and a frequency and duty module on the right.
  1. Power module — V-SET · I-SET
  2. Signal module — FREQ · DUTY
Fig. 2 — SG102, front. Control unit only; coils are not included.
Output frequency, logarithmic1 Hz – 150 kHz
Specification SG102
Channels
3 parallel outputs
Frequency
1 Hz – 150 kHz
Duty cycle
0 – 100 %
Output
Variable voltage & current
Input adapter
24 V DC · 10 A · 240 W, included
Displays
V-SET / I-SET · FREQ / DUTY
Protection
Overcurrent fuse
Cooling
Integrated thermal management
Supplied as
Control unit only
Manual
Owner’s manual, 8 pp (PDF)

Price$299

View the SG102

Owner’s manual · PDF, 8 pages

Stay within your coil’s own rated limits, and see the SG102 questions in the FAQ for power draw and channel use.

Plate IIIRodin coils

Rodin coils, wound on deep-ridged formers.

The ridges make winding simpler and leave room for additional wiring. Every coil has a quartz-crystal-lined core; the suffix gives the lattice spacing — S standard, E extended.

Four Rodin coils on dark slate, labelled 4″ S, 6″ S, 4″ E and 6″ E, comparing size and lattice spacing.

Fig. 3 — Key to the designations

The 6″ RC-6E listing shows the range side by side: 4″ S, 6″ S, 4″ E and 6″ E.

4″ 6″
Size in inches. The catalogue lists 3″, 4″ and 6″ coils.
S
Standard lattice spacing.
E
Extended lattice spacing, for high-power applications.
SG RC-6E 6″ Rodin coil $175 View listing: 6″ SG RC-6E Rodin coil

Coil listings include a cosmic egg with its own stand, a quartz crystal core, and a spool designed to pass through the center for easier winding — see each listing for its contents.

All PEMF devices
Plate IVSpecial order

Special-order research equipment.

Plasma tubes, RF and plasma systems, frequency systems and scalar coil systems, procured to order for experimental, engineering and research use.

Lead time
Special orders require additional procurement, preparation, testing, or production time.
Payment
Cryptocurrency only, processed through our self-hosted BTCPay Server.
Intended use
Experimental and research use. These are not medical devices.
Plate VFrequency Atlas

The Frequency Atlas.

An interactive listening atlas of tonal traditions, harmonic references, and brainwave bands.

Entries
280
Visuals
Wave, Mandala, Lissajous
Waveforms
Sine, square, triangle, saw
Runs
In your browser — free
Open the Atlas

For relaxation and exploration. Not medical advice. Start at low volume. For emergencies, call 911.

Plate VIJournal

Notes on the evidence.

Sourced articles that keep clinical research, early laboratory work and tradition clearly apart.

  1. J.034 min read

    Frequency Healing 101: What the Research Actually Shows

    Peer-reviewed measurements and centuries-old tonal traditions, set side by side and labelled for what they are.

  2. J.023 min read

    From Fringe to FDA: How Electromagnetic Field Therapy Entered Mainstream Medicine

    A history of regulatory clearances — and why the devices we sell are not among them.

  3. J.013 min read

    What Is PEMF Therapy? The Science Behind Pulsed Electromagnetic Fields

    Pulsed electromagnetic fields in plain language, with sources.

Read the Journal

Plate VIIUse & evidence

Use and evidence

Our products are wellness and hobbyist devices, not medical devices. They’re not evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease.

From the Sacred Geometry FAQ — “Are Sacred Geometry devices FDA-approved medical devices?”

Special-order systems are offered for experimental, engineering, or research use. Some equipment may involve high voltage, radio-frequency energy, heat or glass — each listing carries its own safety notes.

Questions, answered plainly

Who shouldn’t use a PEMF device?

Do not use any PEMF device, including ours, if you have a pacemaker, defibrillator, insulin pump, cochlear implant, or any other implanted electronic device — electromagnetic interference is a real risk to how those devices function. PEMF is also considered an absolute contraindication during pregnancy, due to a lack of safety data on fetal development. If you have epilepsy or another seizure disorder, active cancer, or a bleeding disorder, talk to a doctor before using any electromagnetic device.

Does the SG102 come with coils?

No — the SG102 is a control unit only, built to drive your own compatible electromagnetic coils, Helmholtz pairs, or mats. Because its output voltage and current are both adjustable, it works with a broad range of coil specs rather than requiring hardware rated specifically for 24V — just stay within your coil’s own rated limits. If you’re looking for a coil to pair with it, see our Rodin coil devices.

What’s the max wattage / power draw of the SG102?

The SG102 ships with a 24V, 10A power adapter — 240W maximum draw from the wall. That’s the input ceiling; the unit’s own output voltage and current are both adjustable, so actual delivery to your coil depends on your settings and the coil’s impedance, not a fixed 24V/10A output.

How many output channels does the SG102 have?

Three parallel output channels, so you can drive multiple coils simultaneously or build a multi-field array. Duty cycle (pulse intensity, 0–100%) is adjustable to fine-tune power delivery.

All questions in the FAQ

Ask before you order.

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