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Old 18th February 2010, 10:10 AM   #921
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Quote:
Originally Posted by tinitus View Post
I also have a build guide v4.4(2)....dont know the difference
I think it is the same as mine. Yours is 4.1 too.


Merlin, I'm going to use an old telecom equipment case. Quite robust and heavy, and fits everything nicely inside. Curiosly, this are the only ones where I work that are made in Spain:
http://www.dycec.com/pdf/ADI-SG.pdf

I have tons of router's cases at work, from all diferent sizes and shapes, but almost none of them are suitable for doing casework. Too much plastic, strange shapes and pre-drilled holes The older ones are the better ones, period.
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Old 18th February 2010, 11:20 AM   #922
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Originally Posted by regiregi22 View Post
I have tons of router's cases at work, from all diferent sizes and shapes, but almost none of them are suitable for doing casework. Too much plastic, strange shapes and pre-drilled holes The older ones are the better ones, period.
That's what I used, an old WAN router. I cut out some of it and placed in a sheet of aluminum for some RCAs. It's galvanized steel, but it seems to work without issue.
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Old 18th February 2010, 01:55 PM   #923
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How about one of those larger hard drive enclosures?

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Old 18th February 2010, 02:09 PM   #924
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In fact, isn't steel a magnetic "insulator", and protect from electrical interference too?
like mu-metal?
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Old 18th February 2010, 08:47 PM   #925
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As long as its ferrous it has that property.
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Old 19th February 2010, 11:00 AM   #926
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I have -10.56 and 11.81, is this OK? Output DC offset is below 3mV though.
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Old 19th February 2010, 11:12 AM   #927
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I would prefer it under 11V for both in general. Are your JFETs under the LEDs a bit strong for IDSS? Maybe you could put there your weakest ones and both Vouts shall drop if the LEDs are in a current area that gain Vf fast now.
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Old 19th February 2010, 01:20 PM   #928
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I have what it seems to be quite enthusiastic leds. They are the ones from the BOM. I've measured 50 of them, and the vast majority are matched at 1,92v.
Seems some kind of pre-matched leds

So the question is, does it matter if the whole Vf is 1,92 x 5 = 9.6v? A bit more above the recommended 9v.

Thanks
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Old 19th February 2010, 01:39 PM   #929
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Originally Posted by Salas View Post
I would prefer it under 11V for both in general. Are your JFETs under the LEDs a bit strong for IDSS? Maybe you could put there your weakest ones and both Vouts shall drop if the LEDs are in a current area that gain Vf fast now.
So I try to put 2 weaker K170s for the positive reg? What's a easy way to test Idss for the K170 pls? Should I even fiddle around with the LEDs?
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Old 19th February 2010, 02:01 PM   #930
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Originally Posted by regiregi22 View Post
I have what it seems to be quite enthusiastic leds. They are the ones from the BOM. I've measured 50 of them, and the vast majority are matched at 1,92v.
Seems some kind of pre-matched leds

So the question is, does it matter if the whole Vf is 1,92 x 5 = 9.6v? A bit more above the recommended 9v.

Thanks
Same here. Almost every one measured the same as you are suggesting.
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