Alarm siren (CB26231E)

This circuit with two 555s was found in the Encyclopedia of Electronic Circuits volume 5 of 1995. The power is high due to the use of 2N3055.

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Isolated AC Switch with Triac (CB25867E)
This high-power shield is isolated from the control. The circuit was found in the June 1995...
LM3914 with expanded scale (CB24652E)
This LED bar graph circuit was found in the October 1980 issue of Radio Electronics magazine. The...
Automotive Fuse Monitor (CB26299E)
We found this simple car fuse monitor circuit in a William Sheets. The LED lights up when the fuse...