This two-year-80s circuit consists of a solution for a small portable recorder powered by cells, as it was used at the time. The circuit can serve as a reference for the recovery of old equipment.
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...