The presented circuit was found in the National Semiconductor FET Databook. The setting applies to other operational amplifiers and other FETs. The power supply must be symmetrical.
This circuit was obtained from a 90s Radio Electronics. The value of R1 determines the scale...
This small signal injector generator was found in the February 1971 issue of Radio Electronics magazine....
This is one of the many versions of cricket that the reader can find on this site. This circuit is...