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
Porsche 911 GT3 RSR
All-wheel drive R / C model Porsche 911 GT3 RSR on the chassis of the entry-level Fazer. Chassis Fazer is equipped with an internal combustion engine Kyosho nitro type GF-16SG and a...
THE HANDLE OF THE WRENCH
For long distance carrying buckets with cement mortar, wire, shackle mercilessly cuts the hand, even if it is in the working glove. Of course, you can wrap the handle of any thickening....
