Bis
This two-transistor circuit was found in the January 1994 issue of Electronics Now magazine. The circuit is compatible with both TTL and CMOS logic.
This National Semiconductor circuit appears elsewhere on this site. The circuit must be powered by...
In this circuit the frequency is determined by the coil and the variable capacitor. Transistors like the...
This circuit is from old American documentation, but the transistor used is still very common...