TROS — “motor” II
simplified the “TROS – motor I” version by elimination of the ferrite core; now transistor is oscillating by two coils on stator only — the trigger coil to open transistor, the power coil to run the rotor; very similar setup has Bedini, but this one depends from transistor oscillation only, no tricky trigger coil, no brushes, no sensors or switches, and can light 12v LED spotlite (or charge a second bttry) from bemf; love it…