Figure. 1 shows the electrical schematic diagram of a simple radio, which can receive signals of radio stations broadcasting in the range of long and medium waves. In the magnetic antenna is used as WA1. Setting the desired station is performed via the variable capacitor capacitance C1. antenna WA1… Continue Reading
Freight cars are equipped with main cabin heater, which is very convenient, and in the northern parts of the country - a must. but, heating control system is designed so, that in order to maintain the desired thermal regime falls and then turn on and off the stove tumbler. it… Continue Reading
AT [1] published an article on the audit of a liquid crystal display using the mains voltage. A good alternative for testing liquid crystal displays can be used as a probe generator of rectangular pulses, collected on any available element base. One variant of this probe… Continue Reading
I would like to draw to the attention of radio amateurs and little-known simple scheme Microphone. The figure shows a schematic circuit diagram of the transmitter, which comprises K155LA3 chip and the capacitor C1 2…24 pF, determining the operating frequency. Power wireless microphone carried by the voltage source 5 AT, but to work… Continue Reading
Currently attain the age a lot of imported TVs. Quite often the problem - the failure of the TBC. Easily changed to "domestic" TVS110PTS15, PTS16. Some TVs FA set up the conclusions, you need only turn the bracket, contracting core. In other… Continue Reading