Found in an Electronic Design of 1964, this circuit is intended to the signal amplification in the 88 to 108 MHz band. The transistor can be a modern equivalent.
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...