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Old 7th May 2008, 09:17 PM   #1
tonysherwin is offline tonysherwin  Australia
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Default inductors

forgive my ignorance of electronics but can someone please tell me if inductors can be wired in series to obtain a specific value, ie to obtain 5.7Mh can you combine 4.0Mh and 1.7Mh to obtain the required value.
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Old 7th May 2008, 09:24 PM   #2
sdclc126 is offline sdclc126  United States
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You are correct - inductors in series, capacitors in parallel. Here's an info page:


Scroll down to "Combining Components To Achieve Needed Values"
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Old 7th May 2008, 09:25 PM   #3
gareth is offline gareth  Wales
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Yes inductors add up like resistors when connected in series, capacitors do not.

Obviously though the DC resistance will also change


Edit..there will also be some 'mutual inductance' which need to be taken into account for effective application
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Old 7th May 2008, 10:00 PM   #4
BudP is offline BudP  United States
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Just don't stack the inductors up in a pile. Best to string them out and if they are air coils, orient the coils at 90 degree shift to one another. They will interact otherwise. Also, if you are using large metal sheet capacitors, you want to keep them away from this string of inductors about 4 inches or more.

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