Someone who knows Morse code or just going to study it, can build a simple device, shown in the figure. On a plywood Board install the battery B and the lamp L of the flashlight. Contactor In the manufacture of contact plate faulty relay. Now connect the parts to each other by wires. To increase the “range” of the Telegraph, put a lamp made from tin or heavy paper tube — a tube length of 20 cm.
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UNDER ANY LOAD
Sometimes when lifting particularly heavy items are scrap or Kyle. And yet arm is clearly not enough. Growths the tool with a piece of ordinary water pipe, as shown in the figure.
STAIRS… KNOTS
Both in the construction and further operation or repair of individual or country house to work on the roof required a special ladder, better wood, with an l-shaped end at the top so you...
