Fixed Filter inductors

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rarecomponent
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Joined: Fri Dec 16, 2011 8:17 am
Location: Derbyshire England

Fixed Filter inductors

Post by rarecomponent » Wed Nov 19, 2014 10:34 pm

I need some advice on inductor values. I've never really worked with these and I'm a bit confused over their values . On the 907 schematics values go from 5H to 150 mH. There are some available from Hong Kong but their listed as 100 mH. What I need to know is would say 10 of these in series make 1 H ? Not that I will do it like this I just need to decipher the values as there are milli and micro Henry's ..now are these the same values? There's also u and n values ..all confusing. If any one knows of a supplier of large inductors....that would be pretty good.

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JohnLRice
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Re: Fixed Filter inductors

Post by JohnLRice » Thu Nov 20, 2014 1:57 am

From this site: http://www.allaboutcircuits.com/vol_1/chpt_15/4.html

When inductors are connected in series, the total inductance is the sum of the individual inductors' inductances.

When inductors are connected in parallel, the total inductance is less than any one of the parallel inductors' inductances.
John L Rice
MiniMoog, MinitMoog, MG-1, Sub Phatty, 5U modulars, Eurorack modulars

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