A Symet is a simple BEAM spinner that incorporates a common BEAM solar power management circuit called a voltage-tiggered (Type 1) Solar Engine. A “Trimet” is a Symet with three symmetrically-balanced components. A Trimet is basically comprised of the MSE, a DC motor scavenged from a cassette player, a solar cell, and three capacitors that store the energy from the cell (and also act as the main structure of the “bot”).
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Is this type of motor easily found in shops or would I have to take it out of a cassette player?
Neat idea, but why not print a schematic? It would make the function much clearer.