This circuit with the ULN3784B appeared in the October 1984 issue of Radio Electronics magazine. It can typically be powered from 9 to 24 V.
This interesting op-amp signal generator circuit was found in a 1977 documentation. The circuit has...
This circuit is from an English technical documentation and can be implemented with BC558...
We found this circuit for increasing the sensitivity of an instrument in a 1960 documentation. The transistors...