This circuit makes use of an unusual Analog Devices component today. The circuit is from a 90's documentation. The amplifier has 80 dB gain.
The frequency of this circuit can be controlled by a voltage applied to the Vin input. The output...
A configuration using three of the four voltage comparators on the LM339 is shown in the figure and...
Suggested by Amperex in a 1968 documentation, this circuit is based on TAA370, an integrated circuit...