The incandescent bulb consists of a filament within a glass casing which is filled with inert gas. When current is passed through the filament, which connects to its metal base, the filament glows and emits light.
Small bulbs have generally been superseded by LEDs as those draw lower currents and are easier to control using a PICAXE.
Higher power bulbs are increasingly being replaced by higher power LEDs.
A 4.5V bulb may be connected via the BCX38C darlington transistor create module (buzzer shown here).
Bill of Materials
|Bulb ||? ||1 ||Buy Now |
|Bulb holder ||? ||1 ||Buy Now |
|BCX38C Darlington driver transistor ||TRT002 ||1 ||Buy Now |
|1k resistor (pack 100) ||RES1K ||1 ||Buy Now |
|1N4001 Diode ||RES041 ||1 ||Buy Now |
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