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.
The circuit is from an old American magazine EDN of 1975, but can be mounted with ease with common...
Maxim MAX20333 Adjustable Current Limit Switches Maxim Integrated makes available from Mouser...
This amplifier with antique germanium transistors is from a 1968 publication. The circuit provides...