This timer for long time intervals is from the 1990 Motorola Linear Databook. The setting applies to other operational ones and component values are given below the diagram.
This circuit converts the 12 to 13.6 V of a battery into 6 Vwith current up to 1 A. We can use it...
The purpose of this circuit is to amplify the signal of a phone pickup and to be able to reproduce the...
This circuit was found in a 1980s documentation. Modern operational amplifiers can be used. The...