<$BlogRSDURL$>

Thursday, July 09, 2009

A new coil wound

I unwound the Lambretta coil and found tha tit had 4000 turns of wire with an overall diameter of 0.125mm. My task was to put aroudn 3000 turns on to head for a 300 ohm coil. I made a coil winder using a wooden contrction set and a bicycle odometer set to awheel size of 1m circumference. Thus each 'click 'is 1m. It only indicates every 10th click but that tolerance is fine.

It took me best part of 2 hours to make the coil. Remember that it needs a piece of wire connecting at both ends, neat insulation and tape or varnish over the top. I spent longer than I should as I had to re do part of it. The final result has 3000 turns, 330 ohms and looks tidy.


Comments: Post a Comment

This page is powered by Blogger. Isn't yours?