Light setup is very popular among young people. Scheme of another variant of this device suggested that the magazine “Radio, TV, electronics” (NRB). It consists of three color channels (red, yellow, blue) with frequencies section: 700 Hz to 3.5 kHz of 13.5 kHz. The design is greatly simplified thanks to the use of four similar blocks. “Filling” each block consists of two transistors and three resistors (see the diagram of block # 1).
As the input isolation transformer T1 can serve as a transition ТП12 transformer from radio receivers “Spidola”, VEF-12, etc. the Signal is fed on one half of the secondary winding, and remove it from primary.
The maximum power of the lamp — 1 kW, so the SCR must be installed on the radiators. Configure SMU variable resistors R5—R7.
Recommend to read
MODEL OF RIVER PASSENGER SHIP
River passenger ships — a very numerous class of vessels. Small flights of ships to last several hours. Passengers are protected from the weather and can relax in the soft comfortable...
THE FIRST THING THE TILLERS
Accurately process small parcel of land on which "serious" technology closely, except that the tillers. Therefore, the prudent farmers, deciding to get a similar unit, first choose the...
