Bipolar Current Level Detector (CB6629E)

The circuit shown was found in an American documentation from 1964. The circuit uses transistors of the time and the indicators are small lamps.

| Clique na imagem para ampliar |

Simple Vibration Alarm (CB15739E)
A ring and pendulum of stripped wires form the sensor for this alarm. Once triggered, to reset, you...
Phase shift oscillator (CB9196E)
Designed for the audio track, this circuit was found in a Popular Electronics from the 90's. Other...
Triangular and Sinusoidal Digital Generator (CB12749E)
An interesting basic circuit for projects is shown in the figure. It consists of a digital...