Found in a 1991 PE Hobbyst Handbook, this circuit activates an oscillator that deactivates at the end of the programmed time. Transistors are commonly used.
This circuit is from an old Mullard (Philips) documentation on the 555. The circuit uses a pair of...
This circuit, very traditional, was found in a practical Elettronica of 1977. The source cannot be of...
The ICL8038 is a function generator that appears elsewhere on this site in various applications. The...