Logic test (CB21611E)

Using the LM358 from Texas Instruments, this circuit uses LED indicators and can be powered with voltages of 5V or according to the analyzed logic.

| Clique na imagem para ampliar |

Stabilized Amplifier (CB19901E)
This circuit is temperature stabilized. Modern equivalent transistors can be used, and the power...
Servo control (CB12653E)
The circuit shown in the figure makes possible to control a servomotor from a remote oscillator using a...
Gate dip Meter (CB21046E)
This circuit was found in a Popular Electronics from the 90's. It consists of the solid-state...