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
TO PULL IS BETTER THAN PUSH….
First domestic FWD. What vehicle did not invent tireless automakers! Their drawings were cars with engines at both the front and rear, with the leading front wheels and rear wheel drive...
ON THE HUNT – AT “ELECTRON”
Can you go on winter fishing or hunting on the scooter Elektron? Answer — you can! My snowmobile is assembled on the basis of just such a scooter. To "Electron" easily overcame the snowy...
