Sequential LED (CB7860E)

The UAA170 integrated circuit is not very common today. This project is for a 303 Circuits from the 90s. The power supply is 12 V.

| Clique na imagem para ampliar |

Divider by N with the 4017 (2) (CB12131E)
With this circuit it is possible to divide the frequency of a rectangular signal by values between 2...
Precision Hysteresis Alarm (CB26242E)
This circuit was obtained from the Encyclopedia of Electronic Circuits volume 5 of 1995. The...
High Voltage Regulator (CB19513E)
This circuit can supply output voltages from 50 to 250 V from an input voltage of 300 V. The...