Step 8: Led Dimmer Circuit...

For the dimmer circuit of _one_ lamp, you will need:
- 2x capacitors 10 nF
- 1x transistor BC547(B)
- 1x transistor BC557(B)
- Resistor 5k6 (or 4k6, if you want to dim the leds to zero)
- Resistor 10k
- Resistor 330k
- Potentiometer 50k

- Jumper wire
- Nuts, bolts and spacers to mount the pcb in the casing.

Since we're making a red, green and blue lamp, three times this bill of materials is needed :-s

<p>Can you add specific links for the LEDs and other items that you got?</p>
<p>I used these LED's: <a href="http://www.farnell.com/datasheets/1677197.pdf" rel="nofollow">http://www.farnell.com/datasheets/1677197.pdf</a></p><p>The other components are commonly available. If you starting with electronics, you might want to get assortment kits with resistors and capacitors like these:</p><p><a href="http://www.vellemanusa.com/products/view/?id=500317" rel="nofollow">http://www.vellemanusa.com/products/view/?id=50031...</a> (resistors) and</p><p>http://www.vellemanusa.com/products/view/?id=521756 (capacitors).</p>
<p>Alright! Thanks for the links! </p>
This is really awesome!
This is really awesome!
I love that dimming circuit.
Me too, and it works great! Extra fun: when you attach a loudspeaker instead of a LED, it becomes a totally funny mini-organ (the frequency range of of the pulses is about 300 - 4000 Hz: audible! :-))
Fascinating! <br>It is so coool,dude!~
Thanks :-)

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