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
RAILS ON THE TABLE…
For model railroad two rail strips are made from sheet aluminum. They need to be screwed to a wooden block. They mounted on the side bars of wood that make up the profile of the mound....
COSMETICS WALL
Each house master knows that to make furniture — that's half the battle. Another important and time-consuming stage — finish. Neglecting it can ruin any, even the most modern and...
