Various simple electronics projects for beginners

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Various simple electronics projects circuits diagrams for hobbyist and beginners . Simple circuits, mini projects with diagrams and description from many electronics categories.

Electronic starter for neon tubes

Electronic starter for neon tubes shown in the diagram below , is constructed using triac Y1112 produced by Texas Instruments , which is specially designed to turn a thyristor fluorescent tubes .

Circuit Diagram: 
Electronic starter for neon tubes circuit diagram

Circuit for dimming a fluorescent tube

An electronic circuit for dimming a fluorescent tube can be designed using this circuit diagram. The brightness of a fluorescent tube can not adjust as simple as that of an incandescent bulb because the tube starts only at a much higher voltage than the grid, then stays on mains voltage. The starting voltage level and it depends on the temperature of the tube.

Circuit Diagram: 
Circuit for dimming a fluorescent tube

Electronic lock circuit using 4043 IC

This electronic lock is designed to work with a keyboard with 10 switches being controlled (operated / off) using a four digit code.

Circuit Diagram: 
Electronic lock circuit

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