The circuit is from the Linear applications Handbook of the National Semiconductor of 1994. The components used are not common today.
This timer for small intervals, but which can be increased with the increase of R1, was obtained in an...
The figure shows how to use a CMOS amplifier as a crystal-controlled oscillator. The circuit is...
This power control from Motorola's 1971 SCR Power Control Fudamentals can control full wave loads...