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
GIVE ME THE LEVER!
Wardrobes and cupboards of particle Board often make on a solid base, not on the legs. Want to rearrange these at the new place — ready lining, for example, from the packing carton,...
FROM VOLGA STATION WAGON
Familiarity with this machine was held at last year's show "autoexotic" (photo No. 11'2006) — a celebration of homemade and vintage of motor equipment, which has now become traditional...
