This circuit uses a transistor to trigger the alarm from a low quiescent current sensor. The relay is 12 V. The circuit is from Radio Electronics magazine, April 1975.
Random pulses are produced by this multiple oscillator using unijuncion Transistors. The...
This watch was found in 2001 documentation. The watch is powered by 4 batteries. To save energy, the...
This circuit with the PA7601 was found in a 1967 Philco-Ford documentation. The circuit has a pass...