Brush motor run relatively short. And if not in stock new, home “helper” comes the forced inaction. Meanwhile, a new brush it is easy to make from coal cores extracted from the life-expired elements of “373.” Round carbon rod I attach a file of rectangular cross section (see Fig.). Then a jig saw or saw blade blade cut the billet in half. On one end drill hole Ø 1-1,5 mm for fixing stranded copper wire. Inserting into the hole a wire, spin it, and then sealed. The springs of the brush holders using the same. Homemade brush are less reliable and durable than factory. P. SAVELEV, Togliatti, Kuibyshev region.
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