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Post by dhoggan on Apr 17, 2007 13:57:48 GMT
Hi,
I'm sure that I've read somewhere here about recommendations as to which LEDs can be used in an X-Can 2, but after a morning of searching......
All I would like to do is swap the stock red LED for a nice blue one. I see mike does a purple one, but everything else on my desk is blue and I crave uniformity :-) I have a Maplin's local to me, so was hoping to pop in and pick something up, but am sure I read that I'd have to fit a resistor...
So, can anyone suggest what I would need to do? Maplin's sell a blue 3mm LED (part JA27E) - would this be good?
Any help gratefully appreciated!
Regards,
Dave
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Post by dhoggan on Apr 17, 2007 22:45:35 GMT
Well, after a bit of a journey, I've found a an LED that will do the job. If anyone else ever feels the need to go blue, the LED you need is an L-53MBD with a 5K1 resistor on the anode (long lead). Maplin sell the LED as part code JA24B.
Regards.
Dave
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Deleted
Deleted Member
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Post by Deleted on Apr 17, 2007 23:14:13 GMT
Dave
Have you looked at the blue LED at nightime ?
Many of the blue LEDs are so bright that they will just about light up a dark room at night !
You may need to increase the resistance value quite a bit to avoid the blue "circle" on the back wall at night. I find very bright blue LEDs on equipment can be quite distracting.
Purple LEDs like Mike suggested, aren't nearly as bright to the human eye, and aren't overpowering, but do the job intended. That is, let you know that the unit is switched on.
SandyK
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Post by dhoggan on Apr 20, 2007 14:30:14 GMT
Sandy,
Yes, the blue is a pretty piercing colour, but it has to be blue to conform. The resistor should kill off the worst of it, but if still too bright, it's value can always be raised as you suggest.
Dave
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Post by PinkFloyd on Apr 20, 2007 20:58:08 GMT
For an X-CAN v2 you're looking for a 5mm blue LED housed in a water clear package (you can also use a diffused type) 5K1 resistor in series with the long lead (anode) should be a good starting point resistor but if you like your LED to be really subdued then work up the way with the series resistor... 5K1 suits me fine. BTW I sent you a blue LED assembly along with your other bits and bobs Dave  |
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Post by dhoggan on Apr 20, 2007 22:09:18 GMT
Mike,
Yes and with a 5K1 it fits (almost) perfectly with the other 'blue' things on my desk. I can see how it may be considered too bright in a more relaxed setting, by in my study it's not an issue.
Also have the diodes, socket and pot fitted. Now just looking at re-doing all the caps, starting with the power circuit.
One question... do the diodes need burn-in? Sound pretty good to me at the moment...
Dave
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Post by PinkFloyd on Apr 20, 2007 22:24:29 GMT
No.
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marcm09
100+
Audio Monster
Posts: 119
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Post by marcm09 on Jun 15, 2007 16:49:32 GMT
I now use a diffused blue LED from Jaycar with a 12K resistor. The shop where I got it had a LED tester with about 6 different slots so you can just pop your chosen LED into them to see how bright it will be and what value resistor to use ! This will give you a nice dim but 'I'm on' glow that many factory manufacturers use on there equipment...  |
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