This circuit indicates the logical level of a CMOS circuit, extracting the power from the circuit being analyzed. The circuit is from an American magazine from the 90s.
This windshield wiper timer was obtained in an 80's Hands On. The transistor can be the BC548 and...
This circuit was found in a 1977 documentation. It limits the voltage from a source using zener...
This simple circuit found in an American 80's documentation simply blames if there are toxic gases in...