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
RODSTER FOX
The FOX roadster project was born in 2004 from a youthful idea to build an open sports car with an original appearance to satisfy personal design ambitions. Back in my school years, I...
WHEN PIPE — BUTT
Capacity pipes through their joints is a matter that must face not only the professionals who build and service pipelines. Many homebrew, rural residents, gardeners-gardeners are forced...
