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 circuit was suggested by Electronics Now magazine in November 1999 for testing programmable...
This test consists of a simple Hartley oscillator using a transformer of the type found on older...
This circuit was originally created to increase the power of car radios of the 790s and 80s that...