Suggested by General Electric in a 1967 publication, this circuit uses the D13T1, an uncommon SCR today. This component is triggered by the anode.
This circuit is from an English publication of 1991. With it you can use a common multimeter on...
This circuit can be found in a 1970 Motorola documentation. The circuit can be implemented with general...
Delayed Pulse Generator This can be considered an "advanced" application where two 555 integrated...