[Boatanchors] is it a Choke or a Filter Reactor?

George KB2Z Thermionic_Emission at earthlink.net
Fri Oct 29 09:14:02 EDT 2004


In the "Illustrated Dictionary of Electronics" under filter reactor, and 
filter inductor it says, See filter choke.

At 08:28 AM 10/29/04 -0400, you wrote:

>Greg,
>"Reactor" refers to the inductor's positive reactive AC circuit 
>impedance.  "Choke" whether for a DC power supply filter or for higher 
>frequencies ("RF choke") refers to the blocking effect of the inductor for 
>higher frequencies, that is, DC currents are passed with little loss, 
>while higher frequencies are diminished or "choked" off.   That said, I 
>don't know of any industry standard technical distinction between the 
>terms "Filter Choke" and "Filter Reactor" when referring to big, heavy, 
>iron core inductors used in DC power supply filter circuits.  I believe 
>these are just two interchangeable terms used to refer to the same thing.
>
>Bob
>WB4TGG
>
>Greg Mijal wrote:
>
>>Is there a substantial  difference between the terms: Choke and Filter 
>>Reactor?
>>I have a Thordarson T20C57 10h @ 500 ma monster stamped "Filter Reactor" 
>>So why not mark it "Choke" ?
>>Could "Filter Reactor" be a bygone term for swinging choke?
>>Thanks
>>Greg
>>WA7LYO
>>in rainy feenix
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>
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