This circuit was found in the March 1980 issue of Radio Electronics magazine. It is based on the newly released LH2400. The circuit must be powered by a symmetrical power supply.
The transistors of this circuit may be general purpose and the power supply comes from the TTL...
We found this circuit with the CMOS4046 in the August 1994 Electronics Now magazine. The circuit is...
This setting appears with variations at various points on this site. This is from a Motorola...