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
WILL INCLUDE A KETTLE ON THE LASER!
The convenience of wireless remote control (RC) is undeniable. You can use them, without getting up, and the most interesting channel to enable, and the hardware on it to adjust...
BUILDING A CAR
(Continued. Beginning at No. 10, 1975) 5. THE MOST CRITICAL NODES Traffic safety and ease of control of desired self-made car, probably even more than serial. After all,...
