We found this range of LEDs with the UAA180 in the 1976 Siemens Integrated Circuits manual. The maximum supply voltage is 18 V.
Found in American documentation from the 1970s, this circuit employs an integrated circuit from...
This circuit was obtained in the publication 101 Electronics Projects of 1979. The circuit can be...
This assembly circuit using a small motor as a generator was found in Radio Electroics magazine from...