Re: PC port question
- From: Randy Day <randy.day@xxxxxxxx>
- Date: Sat, 11 Nov 2006 13:35:31 GMT
Gareth wrote:
[snip]
PC parallel ports are NOT open collector.
I didn't know if they were or not; I was kinda
hoping...
Are you saying that you want to use 1k resistors just because you don't
have 330 ohms? You could try the original schematic with 1k resistors
in series with the LED in place of 330 ohm. The LEDs wont be as bright,
but probably still visible. Another thing you could try is paralleling
up the resistors - 3 X 1k in parallel would give 333 Ohms.
That's what I'll be doing. I found an old 7805,
and I have lots of 1k resistors. Thanks.
.
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