re wire wrap questions again in article pascal apr ap apd cpg sony co jp pascal apd cpg sony co jp pascal goguey writes in article blue cis pitt edu macfitz pitt edu mark d fitzsimmos writes after a considerable amount of research review of discussions on this group and mainly fruitless time on breadboards i have decided that the path of least resistance for prototyping my not necessarily someone else s electronic designs is wire wrapping i have no idea about what you want to do but be careful wire wrapping increases a lot the wiring capacitance that shouldn t be a problem for slow applications i e a few mhz but as for quicker ones around mhz i doubt that it can work fortunately wire wrapping is a better wiring technique than most at high frequencies cray computers up to the x mp at least all had wirewrapped backplanes wirewrap gets into trouble at much higher frequencies than any ttl can handle the increase of wiring capacitance is not really relevant you have to use transmission line techniques and the capacitance is no problem where can i get a decent wrapping tool i d like to spend less than for an ac powered unit including bit and sleeve hand powered is the best there are good ac powered ones but rather expensive a low cost one doesn t work very well hand powered is a terrible choice imho unless you are a field maintenance person who will do maybe a dozen connections at a time your hands will cramp battery powered wire wrap guns are available in the range and so are the little twiddle stick manual types for a modest project of a couple hundred connections i d prefer to borrow a professional ac unit or a pneumatic one john whitmore
