> > On Feb 15, 2008, at 11:01 PM, John Chung wrote: > > > --- Cedric Chang wrote: > >>> >>> On Feb 15, 2008, at 7:38 AM, John Chung wrote: >>> >>> Guys, >>> >>> I have quite a few dead stuff thanks to faulty >>> transformers. Do anyone have any guides on >> repairing >>> transformers the practical way? One of the >>> main problems is that I do not know how much to >> wind >>> on the transformer..... The voltage values are not >>> printed on the transformer itself*can't work back >> on >>> paper*....... >>> >>> Thanks, >>> John Chung >> >> >> How "dead" are the transformers ? If they are not a >> melted >> doorstop, why don't you measure the wire gauge and >> calculate >> the length of wire wound on the transformer and >> replace it with >> an equal length of wire ? >> >> Cedric >> > > > Dead as in the winding are open. I was just hoping > I would not need to unwind it to find the calculation > of the wire lengths..... Your method requires hard > work ... I then to be lazy on that part..... Looks > like > I need to get a micrometer for the job. > > Next question: > Where do you usually source winding wires for your > transformers? > > Thanks, > John Chung Lots of people sell magnet wire. Radio Slack, http://www.gatewayelex.com/, ...... It is best to get it locally, since it weighs a lot. Cedric -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist