This oscillator was found in a 1976 documentation. The no specified components indicate circuit timings in the range of 150 ns to 120 seconds. The supply must be made with 5 V.
This National Semiconductor circuit uses integrated circuits that are uncommon today. The circuit...
The circuit in the figure is very interesting because it simulates an SCR triggered by light. When...
This circuit is from a 1998 Electronics Now and can be easily assembled since it uses a common...