This 1969 Mullar circuit appears elsewhere on this site. The circuit uses germanium diodes and the indicator is microammeter with zero in the center of the scale.
This circuit amplifies signals from 0.5 Hz to 300 kHz. We found it in an old documentation. Equivalent...
In the figure we have a constant current source for Shape Memory Alloy or (Nitinol). The value of...
This filtered High Side sensor circuit was found in a 2005 Linear Technology application manual....