This setting applies to virtually any photo transistor and any operational amplifier. The power supply must be symmetrical, and the gain is determined by the relationship between R2 and R1.
This signal attenuator was suggested by Electronics Now magazine in April 1999. The circuit is...
This common metronome configuration has already appeared in several of our articles and projects. This...
In the figure we have a circuit with two operational amplifiers 741 capable of doubling the...