To spend simply a circle on a plane costs nothing with the help of a compass. But what if this line should cover a cylindrical billet? For a rough layout, you can use string or a rubber ring. The marking will be more accurate if the workpiece perpendicular to lower the fluid: boundary wetting will become the desired line. Another option is to wear to the cylinder tube of suitable diameter or wrap it with a strip of paper, foil.
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FOR BIPOLAR TRANSISTORS
This device whose description was published in the journal "Funkamateur" (GDR), used in various measuring devices or equipment, where necessary intermittent light or sound alarm....
BED: NOT FOLDABLE, AND A FOLDING
Your magazine has repeatedly published the various options of folding and folding beds. Want to offer your own version. I must admit that to take a tool I made coming first "coupon"...
