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Recent content by bc109

  1. B

    transformer observation

    well dave, let me say my thought into detailed information has been s**t. this is a side observation from another project where my interest lies. assumptions have been made that are incorrect and a mere two evenings in the workshop have brought them to light. i will also say i am not trying...
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    transformer observation

    and you cannot patent mutual inductance
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    transformer observation

    dave i do not want to fight, your posts can get a bit nasty very quickly. i do not claim over unity, never have. i have made a transformer observation... being a iron primary has induced a larger current than a copper of the same size. you have opposed what i have said based on your experience...
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    transformer observation

    ok just leave it then dave
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    transformer observation

    duke37 maybe not to far to from you, about 45 miles from nottingham in leicester direction . I dont mind sorting out a viewing, It was a finding from another project, i replaced a iron winding with a copper expecting a increase in magnetic flux only to find a current drop from 174mA to 50mA...
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    transformer observation

    hi laplace nice idea, laplace, would need some machine work to double spool sizes, but could be usefull, any idea on the increased current with iron over copper? at the moment i can not fault my results looking for some input
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    transformer observation

    put circuit back on bench, have not put together pics ect together yet @merlin maybe you can help merlin, the transformer has a changable primary, the iron primary gives about140mA out of the secondary, a identical copper gives around 60mA. the copper engages the current limit at about 1...
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    transformer observation

    pics, scope shots, ammeter readings comeing up tomorrow steve are people not reading this? you use transistors to drive current through the primary, you compare a iron wound primary to a copper wound primary. to do this you measure the output of the secondary. is the problem that a step...
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    transformer observation

    ok all points taken i have been lazy and sketchy and getting a bit arsey which will not help, sorry about that. it is the iron wire that creates a stronger magnetic field, so your transformer can be as simple as a long ferrite rod with two primarys, copper and iron, with a suitable sized...
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    transformer observation

    @laplace apologise for my lazy input on details i use a ferrite core bottom line if you increase the source of the magnetic field whatever core you have will increase as well. i am not trying to trip any body up. iron wire increases magnetic field. testing this theory will prove it a...
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    transformer observation

    not simple physics steve, you need to prove the basics first
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    transformer observation

    thats cool steve get the wire, knock a quick circuit up to test and we are on the same page, its the best way otherwise we will be allways asking does this work, a simple test puts that to rest. good to here your well up on physics you should pick this up better than me. @jackorocko...
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    transformer observation

    why? a good question, i know the answer lets start with does the iron wire induce more current. the wire is cheap enough, lets prove what i say, if what i say is rubbish i will be shot down in flames :( game on. :)
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    transformer observation

    hi lads plenty of info comeing up but for now some basics. my test circuit is two identical primary coils, one iron and one copper. with a square wave current applied to the primary the iron wire primary induces 2.5x more current in the secondary than the copper. What this means is...
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    transformer observation

    hi all I have built a transformer from circular spools, with this design i can change the primary without unwinding any other coils. When a iron wire alloy primary was wound i noticed this induced over 2.5x more current in the secondary than the same size copper primary. With high currents...
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