This circuit is from a 90s Radio Electronics. The resistors must be precision types and the transistor is a general-purpose type. The operational admits equivalent.
We found this circuit in documentation from the 90s. The circuit has 4 pushbuttons and is powered by...
This circuit tests rectifier diodes with currents from 200 mA to 450 mA, thus serving to test...
This small audio amplifier was found in the May 1994 issue of Electronics Now magazine. The power...