This timer, like the previous circuits, uses a currently uncommon integrated circuit. The time is given by capacitor C1 and R2 which has the range of values indicated in the diagram.
This circuit was found in a 90s Integrated Circuits Data Book. It interfaces a data line with a...
The basis of this project is an integrated 566 (not to be confused with a 556 which is a double...
Found in Motorola documentation from the 1980s, this circuit employs an integrated device from...