TubesGlo Posted February 16, 2022 Share Posted February 16, 2022 (edited) I need 2.5uf for the mid circuit and 4uf for the tweeter. I'm experimenting with NOS PIO caps. 1)Should I use a single 4uf or 2x 2uf in parallel? Also I can't get a cap in the 2.5uf value so I can use a 2uf and a .5uf or 2x 1uf and a .5uf paralleled, recommendations? 2)Is bypassing either of these caps with a small value poly-film considered necessary? Edited February 16, 2022 by TubesGlo spelling Quote Link to comment Share on other sites More sharing options...
Dave A Posted February 16, 2022 Share Posted February 16, 2022 A 1uf and 1.5uf in parallel will work fine. I have started stocking caps I can add together for various values a while back as it works fine and cuts down on the amount of stock I have to keep on hand. Plus the ESR will be lower that way too. I am sure since this is a capacitor topic you will get a variety of opinions shortly. This however is what I do and no complaints from anyone. I have never bypassed caps and have no opinion on that. 1 Quote Link to comment Share on other sites More sharing options...
TubesGlo Posted February 16, 2022 Author Share Posted February 16, 2022 8 minutes ago, Dave A said: A 1uf and 1.5uf in parallel will work fine. I have started stocking caps I can add together for various values a while back as it works fine and cuts down on the amount of stock I have to keep on hand. Plus the ESR will be lower that way too. I am sure since this is a capacitor topic you will get a variety of opinions shortly. This however is what I do and no complaints from anyone. I have never bypassed caps and have no opinion on that. Thanks Dave, With these particular caps to make up the 2.5uf I can only get 2uf and .5 or 1uf x 2 and .5 (no 1.5) I'm assuming as long as the voltage of the three are the same, summing three caps to get the value I need shouldn't be a problem. Quote Link to comment Share on other sites More sharing options...
boom3 Posted February 17, 2022 Share Posted February 17, 2022 The same or more...100vDC is a minimum rating and there are lots of film caps that meet that 1 Quote Link to comment Share on other sites More sharing options...
JohnA Posted February 22, 2022 Share Posted February 22, 2022 Paralleling caps works just fine. It is likely cheaper to use one rather than 2, but ya gotta get the values correct. Quote Link to comment Share on other sites More sharing options...
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