We found this range of LEDs with the UAA180 in the 1976 Siemens Integrated Circuits manual. The maximum supply voltage is 18 V.
We found this circuit in the April 1975 Radio Electronics magazine. The circuit has a latch and...
We found this sophisticated home alarm in a 1994 documentation. The circuit supports sensors of...
This circuit was found in the 1991 Electronics Experimenter's Handbook. It activates a relay when...