One time I urgently needed to draw a charge, and at hand, no needle to scratch or ruling pen, although the lacquer was. Then decided to fill them inscribed with the rod of a ballpoint pen. Rinsed it, squeezed out of the wire ball filled (though with difficulty) varnish – track was surprisingly smooth. Further recording head moved in a glass pipe length 10 cm, ppotiv rubber ring. Easier to fill, but draws like a technical pen, not overjoyed. E. HELBLING, Donetsk
Recommend to read
RELIABLE CONTACT
About how important proper contact of battery terminals, know of any motorist. But sometimes around the lead pin of the battery cracks, through which the electrolyte or its fumes get to...
PRESS-EKSPRESS
If your intention is to re-bind the dilapidated books of your library, it makes sense to produce here is a simple device used as a press for trimming the worn out edges of the pages....
