Edge Wound Primaries

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Original poster: "Angelini, Frank J" <FrankJAngelini@xxxxxxxxx>



 I have several old magazine articles from the 1920's - 40's.  Many 
of the TC's advertized for purchase had edge-wound  primaries. They 
used thin copper or brass ribbon stock, approx 1/2 - 3/4 - inch 
wide.  Why was this design used?  Is there an electrical 
advantage?  I have also seen this method of coil winding used in ham 
radio gear.  Is special machinery required to edge-wind a primary 
coil or can this be done in a home workshop?

Thanks