This very low frequency circuit was found in a 1964 Electronic Design. Transistors may be modern equivalents. The filter is low pass type.
This circuit is from a1970 documentation. R1 may have 10k and P1 47k. The transistors can be BC558...
This series sensor circuit is from 1995 Popular Electronics. The circuit can use any SCR and the...
January 2017 - Mouser Electronics already has to supply the INA240 evaluation modules for current...