This circuit was obtained in a Hands-On Electronics from the 90's. The circuit turns on one LED at the end of the timer, erasing the other. The timing can be increased by increasing C1.
This 3-transistor circuit is from a 1963 publication. The transistors are from the time, but the...
The purpose of this circuit, found in a 1994 documentation, is to provide resources for testing...
Another of the many anti-bounce circuits that we have in this section of our website. This one...