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
GAZ-24-95 Volga
Soviet comfortable SUVs "Moskvich-410" and "Victory" GAZ-M72 was deliberately produced in relatively small batches. The fact that they are mostly intended for party and government...
“THE BEAR” SPECIAL FORCES
Analysis of the use of wheeled armored cars (BA) in local wars and armed conflicts of recent decades have shown the need to further increase their survivability. Established that a...
