We found this circuit in the October 1994 issue of Electronics Now magazine. The circuit uses a now-uncommon 4046 PLL and the gates of a CMOS 4001.
The frequency of this unijunction oscillator is determined by the crystal whose maximum frequency is...
This interesting sound effect circuit that produces the sound of bulls or Bull Horn was found in...
This PLL circuit includes a small amplification stage. We found it in the December 1989 Radio...