This resistance meter was found in an English documentation from 1989. The operational amplifier admits an equivalent and the transistor can be a BC558 or BC559.
Found in a 1966 Electronics World, this circuit applies to the protection of any analog...
The circuit shown in the figure is an application suggestion for ISL8107, a new integrated circuit...
Here we show how to add a reset key to the monostable using two NAND gates (CB127E). When the key...