This variable frequency oscillator with the 4093 was found in a Popular Electronics from the 90s. The table gives the component values for various frequency ranges.
This circuit was found in the April 1993 Electronics Now magazine. With it, it is possible to...
We found this circuit in the February 1983 issue of Radio Electronics magazine. The 4-digit...
This circuit was found in Philips documentation from 1967. The circuit uses components of the...