This circuit was taken from the 1976 Siemens Integrated Circuits Manual. The TCA106 is an operational amplifier similar to the 741.
This sequential circuit drives 6 SCRs that control incandescent lamps. Other types of lamps should...
The circuit illustrated in Figure allows external loads (8) to be driven from parallel port...
This circuit that emits siren sound can be used in a fire alarm. We found it in an old American...