This noise limiter for low intensity signals was found in a 73 magazine for radio amateurs from the 90's. The circuit is for signals from 10 mV to 1 V amplitude.
Found in an American publication from 1968, this circuit aims to keep the torque of a DC motor...
This shield can be used both to interface microcontroller circuits or TTTL. The resistor in series...
Found in Popular Electronics this circuit uses current components to control a pump in order to...