Windshield wiper timer (CB6052E)

This windshield wiper timer was obtained in an 80's Hands On. The transistor can be the BC548 and the relay is 12 V sensitive. The time is set to R3.

| Clique na imagem para ampliar |

Resistance to voltage converter (CB5092E)
We found this circuit in an American 80's documentation. The circuit can be adapted to function as a...
Door Open Alarm (CB6367E)
This 80's circuit, suggested in Texas Insrtruments documentation, uses a Hall effect sensor. The...
Pulse and Ramp Generator XR2206 (CB24510E)
This interesting benchtop circuit was found in the May 1977 issue of Radio Electronics magazine. The...