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Vintage Thermax TC 25G DC Generator Off Grid Power 25 – 150 Watts NOS
The shaft is roughly 1-7/16″ x 5/16″ with a securing flat – this is designed to run clockwise. The leads are about 12″ in length. Rated power: 25 watts / 12.5 volts DC at 2 amp 750 RPM; 150 watts / 100 volts DC at 7 amp 3000 RPM.