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Old 18th November 2010, 05:41 PM   #31
qusp is offline qusp  Australia
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I have thought it through, have you? I mentioned nothing about the height, the leads are at the diagonal edge/corner, which is longer than across, but the effect i'm mainly worried about is the fact that you are left with a pointy corner sticking out the front and rear, so this may make installing them in tight places meant for rectangles problematic and would also make PCB layout rather inefficient unless the patterns are offset, as a grid would mean quite a bit of wasted space, on a 2d plane
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Old 18th November 2010, 06:34 PM   #32
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OK, you win. Maybe, you can explain why such a cap is made, then? .3" square, remember.
"Condemnation without Examination is Prejudice"
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Old 19th November 2010, 06:05 PM   #33
qusp is offline qusp  Australia
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I dont know why it was made, thats my point. this post above was not even directed at you john, but it seems a visual aid is needed. its really pretty straight forward what i'm saying. for starters, a .3" square cap measured across the diagonal is not 0.3" wide but thats not even my point

Click the image to open in full size.

does this look like an efficient use of space to you? of course if you are able to design your own PCB and dont mind having an offset grid, you can waste only a small amount of space at the edges, but installing them in place of a regular square or rectangular box cap pattern, they wont fit at all unless there has been quite a bit of space wasted on the PCB. the squares above are the same size, in fact the diamond one was a tiny bit smaller. the bottom diagram is the overlap that would be caused if the same vertical spacing was used as the first regular grid, this would also have the same amount of overlap horizontally too, but I couldnt be bothered going that far, it should be easy to see the problem.

like I said mate, i'll still be buying some to try them out, but I just think it was a strange choice, perhaps the performance will make up for it and yeah if you can make your own PCB, or build on perf, its not such a problem.
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Old 20th February 2011, 02:43 AM   #34
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polystyrene caps is very well
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Old 7th March 2013, 10:03 PM   #35
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Sorry for thread necroing, but being in the process of rebuilding the linestage of my Buffalo DAC, I could really use some more input.

Please share if you have personal experience with the RTEs, LCR EXFS PS boxes, or Amtrans Polypropelene (or whatever caps that works best). Thank you!
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