R E M A R K S : PHYWE / Germany (1960) ******************************************************************* This SCHOOL-DEMO-MODEL of a GENERATOR / MOTOR was found damaged in Berlin's Flea Market. Only a "COMMUTATOR" was on its axle to show +/- pulses depending how the magnet is installed ( top = red or green) or how the crank is turned (clockwise or counter-clockwise). I added 2 RINGS with 2 CONTACTS beside the commutator together with 2 ( yellow ) PLUGS to show the "real" AC-GENERATION. So important didactically !!! I can not understand why it was not made by PHYWE. When DC POWER is connected to the commutator contacts, the model works as a MOTOR ( w. a push ) you get aware of other DESIGN FLAWS: o The motor needs 12 Volt / 1 Ampere to run o The generator makes only 100 mV - Not enough to drive a lamp ! It would be more interesting (= LAMP) & useful (= low MOTOR-POWER), if PHYWE had made the spool with more windings of a thinner wire. ( May be I should exchange this too, one day ... ) Back to the NULL-AMP-METER impressum: ******************************************************************* © C.HAMANN http://public.BHT-Berlin.de/hamann 03/24/13 |