Here are the materials to carry out coils: an old drill, a speed controller, candles birthday "Vahinee" and enamelled copper wire of 5 / 100.
The little yellow piece on the chuck is a magnet designed to operate the tachometer through a reed relay.
We set the candle in the hard core.
To make a gorge in the candle in order to delimit the winding is heated gently, with a lighter, the blade of a spatula or a screwdriver.
We do the gorge.
We measure with a depth gauge (4mm).
We start winding wire by the end of the candel, then made several turns on the body of the candle to reserve a good length of wire (important for later).
We start winding.
Beginning of winding closer.
About all 100 turns are added with a toothpick, the CA very thin and new.
CA will be charged with a toothpick from a drop filed on piece of tape stuck on a piece of paper.
We wind coil and up to 800 turns.
With a soldering iron hot apply flux on the wire.
We check the resistance of winding.
We go out the candle of the mandrel.
We boil water !
It melts the candle by running hot water.
And we get the coil.
It is finished, we note the values of winding.
HOME