This low frequency sinusoidal oscillator was obtained in documentation from the 1970s. Operational equivalents can be used. The FET is a general-purpose type.
The two circuits are from Motorola's Linear Databook from 1990. The resistors depend on the gain...
January 2017 - Texas Instruments' new TLVx376 series precision operational amplifiers can now be...
Suggested for use in cars and motorcycles, this circuit was found in a 90s Popular Electronics. The...