Modern containers with screw cap are often difficult to open — when unscrewing a tight twist receptacle slip in your hands, scrolls. To “win” it is easy enough to use a piece of sandpaper and the tube will be.
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I have improved the conventional electric soldering iron. It turned out lightweight and compact (see Fig.), you can carry even in your pocket. It is easy to make and a beginning radio...
THE PIPE DOES NOT COLLAPSE
Thin-walled tube of soft metal when you try to bend often creased. To avoid this, they are usually pre-stuffed with sand. With the same purpose, you can use another method: navit on the...
