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Old 23rd February 2013, 01:49 PM   #551
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more turns - more stray capacitance yukyuk

keep it at bay - saying that you need entire core covered with wire , so one layer is minimum

sort of gamble - will you go to use 1KW5 , 2KW or 3

whatever you choose - I see no reason to cry later ;

btw. capacitance can be somewhat lowered with connecting small chokes in series with each winding
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Old 23rd February 2013, 02:07 PM   #552
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So ordering 3 KVAs with only the primarys wound for 2*115 V would be a fair gamble? The audiogrades will be with epoxy filled centers so I can not unwind it.
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Old 23rd February 2013, 02:31 PM   #553
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yup - just primaries ;

if you can , say that your goal is rather fully covered core than exact number of turns (needed for any voltage )

they don't care - that's just few clicks on machine control panel
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Old 23rd February 2013, 02:41 PM   #554
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Well as far as I know the primarys for 2*115 V usually goes in some layers on toroids so it should cover the core all righty.
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Old 24th February 2013, 08:54 PM   #555
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anybody has recommendations what to use for the 47 uF input caps?
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Old 24th February 2013, 09:16 PM   #556
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nothing wrong with Elna Silmics , bypassed with small MKC
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Old 25th February 2013, 08:33 AM   #557
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So you dont think I should go straight on those stuff?

B32526T1476K EPCOS | Mouser

B32678G3476K EPCOS | Mouser

FFB44E0476K AVX | Mouser

/Staffan
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Old 25th February 2013, 11:33 AM   #558
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you're wasting your moony , not mine

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Old 25th February 2013, 01:03 PM   #559
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No, I'm mooning your waist

Ok, It was the word waste anyway that I needed.

Thanks
Staffan
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Old 25th March 2013, 03:18 PM   #560
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Hi

I'm on some early projecting here and had a lookie in my closets. I had some 400 VA 2*12 VAC that I could use one per monoblock with dual graetz. Then I could do with dual 25 V caps per rail and RC. Or I also had some 400 VA 2*24 VAC that i could use. Then I need single 50 V caps. What would you prefere here? And what values on the filtercaps per RC?

Best regards
Staffan
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