Re: Newbie question: circuit for harddrive indicator

From: cpemma (cpemma_at_mexbro.co.uk)
Date: 01/29/05 

Date: Sat, 29 Jan 2005 16:04:57 -0000

fob wrote:
> cpemma (et al):
>
> I hate to do this to you, but could you draw the circuit with actual
> part numbers and values?

Have a look at this one:
http://forums.bit-tech.net/showpost.php?p=255359&postcount=8

For a few leds, most any small NPN transistor will do, a BC107, BC109 or
2N3904 will take 300mA, a BC547 about 500mA.

You could also use a 5V supply, changing R1 to a 1k.

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