This interface shield circuit is from the 1983 Intersil Databook. The components used are uncommon today. ADCs are low-cost digital converters. The power source voltage must be 5 V.
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...