This simple injector circuit can actually be powered by voltages from 3 to 9 V. The frequency is given by C1 which can be between 4.7 and 10 nF. The CMOS can also be 4011.
This is one of the many modulated siren versions that can be found on our website. We found it in a...
This circuit was found in the May 1983 issue of Radio Electronics magazine. The SSM7046 integrated...
This isolated shield uses a common optical coupler that supports several equivalents. The resistor in...