Cascading the 4017 (CB25913E)

With this circuit any number of 4017 integrated circuits can be connected in series. The circuit is from a Radio Electronics from April 1989.

| Clique na imagem para ampliar |

Comparator With Op. Amp. (MSB069E)
This simulation shows how to use an operational amplifier as a voltage comparator. The sample uses the...
Telephone Conversations Automatic Recording (CB17296E)
This circuit automatically activates the relay when the phone is answered, closing the record...
Vehicle Alarm (CB4867E)
This car alarm was found in an American '80s documentation. The circuit automatically activates...