This circuit was suggested by Signetics in 1980s documentation. The circuit makes use of the hard-to-obtain component of our day. It is for reference only.
This circuit is from Motorola's 1990 Linear Databook. We can implement it with other operational...
This 3-decade operating range VCO was found in a 90s Popular Electronics. The circuit uses...
This circuit is used to generate pattern bars on an analog television screen for calibration...