Anti-theft with voltage sensor (CB26166E)

Found in the 1991 Electronics Experimenter Handbook, this circuit detects voltage variations in the circuit when the engine starts.

| Clique na imagem para ampliar |

3 1/2 Digit Multimeter (CB24541E)
This circuit is from a March 1978 Radio Electronics magazine article that showed how to build it....
Amplifier for multimeter (CB23761E)
This circuit was obtained from an article in Radio Electronics magazine in October 1966. It...
Bistable Touch Switch 4093 (CB15522E)
In the figure we have a bistable circuit that activates LEDs from touch rings and turns off data...