In today’s electronic equipment is widely used touch control. Option sensor available for beginners repetition hams, offers Czech magazine “Amaterske Radio”. If you touch the plate, induced in the human body room electrical AC voltage increases two-stage ULF transistors V1, V2, and then straightens diode VЗ. Direct voltage of about 4 V, which appears at the sensor output, is the command signal.
The device used any low-power silicon transistors, for example, КТ342, KT315 with any alphabetic index. Diode any silicon (Д220, Д219). Capacitor — KBG-And or BMT. Touch plate — cut foil fiberglass with a size of 20X20 mm.
Recommend to read
“CHUK AND GEK” — MOTONARTY
Well known to our guys managed sledge "Chuk and GEK" called snegokat because it is meant for use only on the slopes of the snow hills. Rapidly — only the wind whistles! — rushing...
CONCEIVED AND MADE SOFA
The Assembly of such sofa beds only took three days, however the design was thought through in advance. Wish it was spacious for sleeping, and a day would take up less space. So I made...
