This circuit was found in Delco documentation from 1965. The transistor is of the time, but any current power PNP with at least 500 mA collector current and 100 V collector voltage can be used.
This simple robot circuit was found in a Radio Electronics from the 90s. The components are...
This circuit produces a square wave signal with the frequency determinated by R1 and C1. The upper limit...
These circuits were found in the February 1995 issue of Electronics Now magazine. The circuits have...