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
SHAH… THE BOLT FROM THE NUT
Once, when away from roads, I felt that with the machine there is something wrong, but I do not understand. I had to stop on the first encountered small's auto service station. ...
FIGHTER I-5
FIGHTER I-5. Scale model 1:33. The history of this car, dubbed the I-5, began in the summer of 1927, when Polikarpov developed a preliminary draft of the fighter under the British...
