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 |

FET preamplifier and equalizer (CB8162E)
Found in an Electronics World of 1966, this circuit makes use of FETs of the time. Modern...
Adjustable Range Pass Filter (CB6730E)
This setting that applies to any operational amplifier was found in an old documentation. For the indicated...
Full Comparator (CB6548E)
Applying an operational of the time, this circuit of an old documentation can be elaborated with modern...