Found in Philips documentation from 1968 this circuit operates at frequencies up to 10 MHz with 76 dB gain. The double transistor can be replaced by a matched pair.
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...