Found in a 1967 American publication, this circuit with feedback for two transistors has a gain of 20 times. Phototransistors are types of the time.
This current sensor employs the Texas Instruments LMV358A low voltage operational amplifier. This...
In this circuit we show how it is possible to control a high power load (which depends on the...
Found in an Electronic Design of 1965, this circuit consists of NOR gates and can be used in...