New VIC pictures discussion!!!

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what could the dimension be ,i mean abt the bobbin
rgds paul

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by looking at that bobbin assembly the description of it construction is wrong or this assembly was an early attempt which was updated the outter wire is supposed to be bidirectionally wound i can not see how this is possible with this outer bobbin

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i dont think so,
i think its the VIC used by stan and looks  a bit easy to make if the dimensions can be found
rgds paul

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Here are a couple of pictures of Stans VIC coil and the bobbins used to make it.Keep in mind the laminate core is @ 3/4 inch square,2 3/4 inch dia. and 3 inches long.

Looking great Don!
Thanks for posting.
Looks like the multiple bif coil assembly of stan to me.

br
steve

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by looking at that bobbin assembly the description of it construction is wrong or this assembly was an early attempt which was updated the outter wire is supposed to be bidirectionally wound i can not see how this is possible with this outer bobbin

Plz define your definition of bi-directionnal with a simple sketch plz , I had the impression it was simply wound like any other coil left to right then right to left etc untill you reach the top , this is how it was ... Its just a secondary coil and thast the only way you can work in such a narrow bobbin , Stan calls for a "bidirectionnal dual primary coil" . He "may" be referring to the pickup coil , I am unsure of this tho , it is confusing the way he calls out the primary in the Figure drawing . In the text body its pretty understandable tho ...

This most likely is the pulsing core design for the buggy tho I am not sure , maybe have been an U core ... It is the VIC of the injector that I am sure of tho ...

Obviously the wire isnt there , probably somebody had it removed so it cant be used or w/e other reason .

There is other variations and hybrids in chapter 8 wich calls for a "bifilar secondary" , chapter 10-4 calls for a bizarre coil as well .

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its been a while since i read the brief but i belive it say the middle coil was wound bidirectionally to inhibit ringing  i would assume bi directionally to mean they cross over each other in the middle as the brief shows in an x shape or that the coil goes from one end of the bobbin to the other back and forth  looking at the inner bobbin their dose appear to be a step between th inductor and were the other bobbin slides over it  probably goes their

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its been a while since i read the brief but i belive it say the middle coil was wound bidirectionally to inhibit ringing  i would assume bi directionally to mean they cross over each other in the middle as the brief shows in an x shape or that the coil goes from one end of the bobbin to the other back and forth  looking at the inner bobbin their dose appear to be a step between th inductor and were the other bobbin slides over it  probably goes their

Yes 2 bobbins is way easier than 3 bobbin , this is way more efficient than the 2curious design .

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Resonant Choke Coils are composed of 430F or 430FR inductance stainless steel film coated wire (typically .004 Ga. or smaller) which are axially (spiralled) Bifilar wound about core bobbin, forming individual spiral-wrap (inner to outer circumference and being equally-length) coils electrically connected in sequencial order to form resistive pickup coil.

Primary Coil (typically .030 Ga.) film coated magnet wire is longitudinal wrapped in
space relationship on top of and layered bidirectional across spiral-wrap coils to complete bobbin cavity.

Secondary pickup coil is, also, composed of individual spiral wrapped
Coils (typically .002 Ga. magnet wire) electrically connected in sequential order to
form bobbin cavity which is placed on top of and in space relationship to primary coil cavity.