Originally posted by sampojo
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I had a similar experience with some Models I have built...related to amp draw as Output...
Right after I finished winding it...at first run...it shows an excellent and way above expected Output...However...after a "while" in different tests, the Output started to decrease...till becoming what we all know as "Typical" ...
One of the explanations I can think off...is that the laminated steel started to store "Magnetic Residue" from the Hot side Input...since it is always the same direction of flow for all coils (no forced reverse input like Symmetry...a reverse flow will actually "clean up/demagnetize" the previous flow, so, no residue)...therefore, this magnetic "normal" effect to Asymmetrical Machines, decreases the "Natural Reverse Side" when coils are at Output, after disconnecting from Hot...it diminishes Radiant flow...
However, Asymmetrical Machines allow the use of Aluminum and even "wood" or Plastic...in the Rotor Cores...Aluminum is a Paramagnetic Material...Therefore it is very odd that it will keep any Residual Magnetism, when it is not under the influence of an Electric Field/Flow...)
Regards
Ufopolitics
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