In case a burglar intrudes your house, you can use this electric shock gun as a weapon for self-protection by giving a mild electric shock to the attacker.
In case a burglar intrudes your house, you can use this electric shock gun as a weapon for self-protection by giving a mild electric shock to the attacker.
Just use 3 components to make a switching indicator
Just use 3 components to make a switching indicator
Soldering Procedures
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This simple plant water alarm circuit indicates when the soil is dry and the plant needs watering. The circuit does not have a current-limiting resistor because the base resistor is very high and the current through the transistor is only 2mA. Replacing 220K resistor with 1M potentiometer will provide adjustment when the alarm should be triggered depending on the moisture left in the soil.
This simple plant water alarm circuit indicates when the soil is dry and the plant needs watering. The circuit does not have a current-limiting resistor because the base resistor is very high and the current through the transistor is only 2mA. Replacing 220K resistor with 1M potentiometer will provide adjustment when the alarm should be triggered depending on the moisture left in the soil.
50 - 555 Circuits More
Step-up, step-down, isolate... Transformers come in all shapes & sizes! Learn about different types & their uses for power delivery, electronics & more.
Different configurations of transistors - Common Base (CB), Common Collector (CC) and Common Emitter (CE) | Input and Output Characteristics.
12v DC Full wave bridge rectifire. Project video submitted by @invention_class
Different configurations of transistors - Common Base (CB), Common Collector (CC) and Common Emitter (CE) | Input and Output Characteristics.
AC Theory, Capacitor construction. Types of capacitor and their uses
