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
A MODEL THAT BRINGS VICTORY
Almost ten years leading group Russian rocketmodeler-ing in the so-called sports classes is headed by an athlete from Magadan I. Shmatov. In his father's footsteps is his son Anton. The...
LADDER OF TYRE
Usually the approaches to the water source, whether a spring or stream, uncomfortable, and in these places the required steps. Make the step from old car profile tyres from trucks,...
