This circuit is from Mullard 1969 documentation. The circuit operates at a relatively high supply voltage and has a 10 Vpp output. The transistors are of the time, but admit equivalents.
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...