This circuit was found in the June 1986 issue of Radio Electronics magazine. It is based on two operational CA3140s and has a trigger voltage adjustment.
The National Semiconductor LM675 operational amplifier can provide up to 3 A of output current. In the...
This circuit was obtained from a Philips documentation from 1970. It can be built on modern...
April 2017 - Mouser Electronics already stocks the new Broadcom APDS-9500 proximity and gesture...