Ideal for benchtop use, this dual-band circuit was obtained from the 1995 Electronics Now magazine. The circuit can be powered with voltages from 5 to 12 V.
An interesting type of sensor for specific applications is the sensor formed by piezoelectric...
This circuit is from Radio Electronics from the 90s. It supplies a voltage between 800 V and 2 000...
This circuit was obtained in a 1989 publication and is quite simple to assemble, but critical in...