We found this circuit in a 1998 documentation. It tests common household appliances to see if they are shorted by lighting an incandescent lamp.
The regulation of high voltages through common semiconductor circuits, such as integrated circuits and...
The LM2904 is not very common today, but common comparators and operationals can be used in the...
This amplifier circuit was found in a Radio Electronics from April 1959. The circuit needs only 20 mV...