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.
Recommend to read
THE WAY TO “EAST”
In 1955, the Soviet Union took arms ballistic missile R-5, launch weight and range which were respectively 29 tons and 1200 km Mass warhead of about one ton. At start-up to a distance...
STARTS… CARDBOARD
Going into the club "Technical modeling", we saw a lot of bench models made of paper and cardboard by One of our members suddenly suggested — and in fact the GAK you can build and...
