This sensor circuit for currents of the order of nanoamperes was found in an American documentation from the 1980s. The components are from that time.
This circuit was found in the February 1980 issue of Radio Electronics magazine. The digital...
This emitter follower simulator circuit was obtained in a 1964 documentation. The circuit can be...
This timer for long time intervals is from the 1990 Motorola Linear Databook. The setting applies...