Power zener (CB21503E)

In the figure we have the way to implement a power zener diode. The voltage depends on the zener, and the maximum current of the transistor.

| Clique na imagem para ampliar |

Mini-Buzzer (CB459)
This circuit uses a piezoelectric transducer to produce sounds like a buzzer. Frequency is...
Wien Bridge Generator (CB39010E)
This sophisticated sinusoidal audio signal generator uses a Wien bridge configuration with an...
Logic Probe with Memory (CB5909E)
This 7400 TTL circuit has a memory, keeping the LED on when a pulse is detected. The circuit must be...