DIY experimental board for running water lamps and electronic doorbells, mainly used to describe the three functions of conduction, cutoff and amplification of triodes
Material description:
1. The light-emitting diode can be 3mm or 5mm.
2. The resistor type can be metal film or carbon film
3. The transistor models are 9012 and 9013
4. The capacitor uses 5X11mm aluminum electrolytic capacitor and ceramic capacitor
5. The tact switch adopts 6X6X8.5mm specifications.
6. The buzzer is a 5V, 16 ohm passive buzzer with a specification of 9X5.5mm.
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