This simple component tester was found in the October 1997 issue of Electronics Now magazine. The circuit is powered by power grid through a simple power supply.
This circuit generates a pulse of approximately 1 second when the light incident on the sensor...
The 3403 operational amplifier is not common today, but the configuration can be implemented with...
This circuit, published in 1978, can use any general purpose NPN transistor such as the BC548 and...