Hermes Posted April 3, 2004 Report Share Posted April 3, 2004 HelloJust a question about tolerance values:In www.farnell.com I have found 470pF polysterene (Styroflex) caps with 1% tolerance (630V) as well as 470pF poysterene caps with 2,5% tolerance (160V). Which ones are more suitable for the SID module? (There are also different tolerance values (1% and 2,5% for the 6.8nF caps used for the 8580 chip)TK suggests 2,5 tolerance. Would t the 1% tolerance make the filter more accurate? Best regardsDimitrisBest regards Quote Link to comment Share on other sites More sharing options...
pay_c Posted April 3, 2004 Report Share Posted April 3, 2004 For audio stuff (e.g. filter) always prefer the lowest tolerance. 1% should be better.You have to think about following: @ 1000 Hz 2,5 % are meaning *about* 25 Hz up/down (roughly!!!) and 1% 10 Hz. If you want all SIDs in one perfect filter row, prefer the 1% ones. Quote Link to comment Share on other sites More sharing options...
Hermes Posted April 5, 2004 Author Report Share Posted April 5, 2004 thanks pay_cBut what about the voltage differencies (1% tol, 630V v. 2,5% tol. , 160V) Does the voltage value affect the behaviour of the capacitors and consequently the filter?BTW the design of your MBseq is absolutely fantastic!! Quote Link to comment Share on other sites More sharing options...
Guest psytron Posted April 6, 2004 Report Share Posted April 6, 2004 voltage only matters when you start approaching that voltage.electrotic caps go BANG when you exceed their max voltage (by a fair amount). Quote Link to comment Share on other sites More sharing options...
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