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Date: 11/25/02 at 8:56 PM
Posted by: Russ Kincaid
E-mail: russlk@netzero.com

In Reply to: controlling leds posted by Richard Astley on 11/25/02 at 2:08 PM:

Put 390 ohms in series with each LED to limit the current to 20 mA, connect all these to the emitter of a TIP31 transistor. Connect the collector to the voltage source and connect the base to a 10K pot that is connected from the voltage source to common negative.

Follow Ups:

  Re: controlling leds Richard Astley   Posted at: 11/26/02 (7)

  Re: controlling leds Russ Kincaid   Posted at: 11/26/02 (6)

  Re: controlling leds Richard Astley   Posted at: 11/26/02 (5)

  Re: controlling leds Russ Kincaid   Posted at: 11/26/02 (4)

  Re: controlling leds Richard Astley   Posted at: 11/27/02 (2)

  Re: controlling leds David Ashby   Posted at: 11/27/02 (1)

  Re: controlling leds Richard Astley   Posted at: 01/06/03 (0)

  Re: controlling leds Richard Astley   Posted at: 11/27/02 (0)

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