Sequential Arrow (CB6377E)

We found this circuit in an Electronics World of 1967. The components are of the time and incandescent lamps are used.

| 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...
Bicycle speedometer (CB7066E)
Using an analog microamperimeter this circuit has a phototransistor adapted to the wheel as a...
Optical Coupler Shield - I (CB1325E)
This shield can be used both to interface TTL circuits and microcontrollers. The resistor in...