mini project in electronics?

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mini project in electronics?

2006-12-28 20:58:52 · 3 answers · asked by mahe 1 in Science & Mathematics ➔ Engineering

3 answers

You can make an audio-oscillator from 2 transistors, 4 resistors, 2 capacitors and an old speaker from a radio or headphones. You can vary the frequency by using a variable resistor (potentionmeter). Make it oscillate in the audio range from say 100 Hz to 10,000 Hz.

Use the 'astable ocillator' circuit on page 2 of this pdf file. I think you put the speaker in place of one of the LEDs.

Also see link to a variety of projects.

2006-12-28 21:07:09 · answer #1 · answered by ricochet 5 · 0⤊ 0⤋

www.electronics-lab.com

2006-12-30 22:03:39 · answer #2 · answered by IN PURSUIT OF WISDOM 2 · 0⤊ 0⤋

www.electronicsforu.com

2006-12-28 21:28:36 · answer #3 · answered by Ritesh13171 3 · 0⤊ 0⤋