Try 60 W: the contact wall reaches 70 °C and the cutoff latches. Changing load starts a fresh trial. Around 2.5 s the first tracer ions reach the first wall and the inner liner flashes where each one is absorbed. Drag the device to inspect its coils and fins.
Open the engineering notebook
90 mm cutaway · 0.8 T ideal toroidal magnet · 200,000 K diagnostic ions. Copper loops surround the evacuated bore; a rear charge annulus feeds the terminals. The radial fins reject converter heat. The inner sweep is a clock instrument, not a spinning magnet.
A 0.6 mm stainless contact stripe conducts converter heat into the channel ribs and the 4 J/K sink. The wall reaches cutoff before the sink: stored heat keeps moving after shutdown. Recovered coolant heat warms a separate 250 g water-band comparison toward its boiling threshold; this meter does not feed back into the coolant boundary.
Cyan field light and amber wall color are amplified instrument overlays, not incandescence. The faint refractive sheet above the fins is an amplified warm-air indicator, not a solved airflow. The probe illuminator follows the shared-clock sweep. Each diagnostic ion contributes only 8.3 × 10⁻¹⁸ J; the sixteen deposits cannot visibly heat this wall.
Particle paths replay 1 μs per second, then hold at 12 μs. Closed field lines have no end throat, but curvature drift still deposits ions at the wall. The independent power trial runs in seconds.
No bulk plasma, sustained confinement, winding losses or realizable cell design is claimed. Read the contract.