We found these circuits in a 90s Radio Electronics. In them, we have the way to turn a load on and off using pressure switches. The circuit can be used with other types of direct current load.
The circuit shown below is from the National Semiconductor's 1994 Linear Applications Handbook. The...
This traditional oscillator configuration with NAND TTL gates can generate signals up to 20 MHz,...
This is a basic and operational voltage comparator circuit. The circuit has voltages determined by the...