This circuit was found in the November 1994 issue of Electronics Now magazine. The circuit is based on the 566 PLL and generates signals up to about 200 kHz.
The deviation of characteristics of this circuit normally referred to the temperature is very low....
Found in a 1969 Electronics World, this circuit generates low frequency signals with two...
Suggested by Texas Instruments in 1968 documentation, this circuit uses components from the era....