the-device.pages.dev
The Device
Interactive simulators for the sealed {12/5}-wound torus: an N52 slug in EFH1
ferrofluid, driven around the raceway by an audio current wired differentially (L − R)
across a stereo amp. Pick a tool.
Simulators
One torus
The reference build. Volume, tone-timing φ, coil-wraps (rebuilds the winding & recomputes the Biot–Savart landscape live), slow-motion, drive modes (dual / single / L=R null), field lines, bore cones, eye follower.
Facing pair
Two toruses bore-to-bore. Per-device tones and polarity (Normal/Inverted), drive modes, counter-rotation and the mid-gap null sheet, nested field lines bridging the gap.
Array
Up to six toruses, bores inward at a shared center (2 = facing pair, 6 = cube faces). Per-torus tones / φ / wraps / magnet-flip, global volume, spacing-from-center, ferrofluid ON/OFF, real dipole–dipole coupling ON/OFF, live speed readouts.
Tone-finder
The honest driven-dynamics engine — integrates the equation of motion with no speed shortcut. Live ring + scope, a moves/dead verdict, and a tone sweep that scores every pair by rectification strength on a clickable map.
Also here
Unified lab
A rebuilt single-view lab (1–6 toruses in one scene) with a Δφ inter-device force-dial, A↔B sync readout, and tube-rendered winding. A companion to your array sim.
How it's modelled & what the engine found
The validated Biot–Savart field, the ferrofluid magnetization, the single-tone verdict, and the honest boundaries — plus testable bench predictions.
source: github.com/jornum/the-device · built with Claude Code