Found in Popular Electronics from the 90s, this circuit turns off an appliance at the end of the programmed time. The 12 V relay must have contacts according to the controlled current.
The integrated circuit used in this configuration is not very common today. However, more modern...
The basis of this circuit is the 723 integrated circuit, not very common today. We obtained this...
EZP-Q metallized polypropylene capacitors from Panasonic's can be purchased from Mouser...