Many of the TVs antenna socket is shallow and the plug often POPs out. Attach or stick on the entrance of the socket guide ring of sufficient height with an internal diameter slightly greater than the cable — the plug will stay securely.
V. GOLOVASHIN, Rybnoe, Ryazan oblast
Recommend to read
WITH AN EYE ON “TRENDSETTER”
In countries which are called "Maritime powers of the second tier", you can see two diametrically opposite approaches to creation of own torpedo ships. Some tried to build world's most...
THE SOLENOID
So, you are already familiar with the electromagnet, knows how to work the buzzer and electric bell (see "M-K" No. 8 this year). But there is a large group of Electromechanical devices,...
