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 EJECTOR ON A COPY
Using copy booster of the spaceship "Soyuz" in the class of models K-2 has, along with the advantages and disadvantages. In the manufacture of models, it is difficult to meet the launch...
THE STRINGS OF THE SKI…
"Could you tell us about how to make a sports bow?". George Grudev (Bulgaria), Nikolay Kuznetsov (Kursk) etc. to Make a sports bow by all the rules that only an experienced master....
