When you work with small nails a hammer is necessary not on the head and on the fingers. This can be avoided if you use a simple and convenient device — a kind of tweezers. Make it easy from an ordinary wooden clothespins, giving it the desired shape and protocil the groove for the stud, as shown in the figure.
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Heavy duty anti-tank gun BOB-25. The famous "sorokopyatki" — 45 mm 19K anti-tank gun of the sample in 1932 and its upgraded version 53K model 1937 was in fact the only anti-tank guns by...
A simple voltmeter
measuring constant voltage value of 100 V. It is produced by the bridge circuit for the transistors T1 and T2. In one diagonal bridge included a measuring device in the other power...
