Ferrite Toroids and Baluns. Help

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Article #15804

#15804

From: Daniel Say
Date: Fri, 18 Dec 1992 05:01

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Passing on a message.  Can anyone here help?
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 Ferrite Toroids and Baluns                     15 Dec 92 00:34
I'm posting these questions for a more technologically astute friend who
doesn't have Internet access.  I hope you can help him, because I don't even
understand the questions!

1) Could ferrite toroids by Amidon (FT-82-75) with high permeability
(5000) be used to build a low pass audio filter with cut-off frequency of
3 kHz (-3dB)?  Specified resonant circut frequency is 1 kHz - 1 MHz for
this material.

2.) What kind of balun is used in professional dipole set-up, for
listening only?  Is it voltage or current 1:1 type?

                            Cheers, Rob
--
Robert Fargher  fargher@unixg.ubc.ca |  The number of things that I know
Dept. of Physiology, UBC             |  absolutely nothing about is increasing
Vancouver, BC, Canada, V6T 1Z3       |  at an alarming rate!

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From: say@monashee.sfu.ca (Daniel Say)
Subject: Ferrite Toroids and Baluns. Help
Message-ID: <say.724654912@sfu.ca>
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Organization: Simon Fraser University, Burnaby, B.C., Canada
Date: Fri, 18 Dec 1992 05:01:52 GMT
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