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4wd: Nothing to Worry About?



 
 
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Old June 3rd 17, 01:07 AM posted to alt.comp.os.windows-10
Brantly
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Posts: 5
Default 4wd: Nothing to Worry About?

Oh, WOW! I can forward copies of my post from my Sent folder right back
to the newsgroup again. How annoying.


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Subject: 4wd: OT: Nothing to Worry About?
References: md5:ZBXxoIvW5/tfjqCd80T8Kw==
Newsgroups: alt.comp.os.windows-10
From: Brantly
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Date: Fri, 2 Jun 2017 17:03:51 -0700
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Subject: OT: Nothing to Worry About?
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Newsgroups: alt.comp.os.windows-10
From: Brantly
Date: Fri, 2 Jun 2017 16:59:19 -0700
User-Agent: Mozilla/5.0 (X11; Linux i686; rv:38.0) Gecko/20100101
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On 06/02/2017 12:55 PM, rickman wrote:
As long as you aren't a corral reef.

https://xkcd.com/1379/


Or a COREL reef. I bought Adobe Illustrator a long time ago, shoulda
bought Corel Draw. But the Student Bookstore didn't have it on the shelf.


Here's some copy/paste from a different post.

I know he has bought a LPF for his application, but this is for kicks.
He had done a 4 resonator BPF design. It had a high spread of inductor
values. It was canonical and had over 80 dB of suppression at the 2nd
harmonic (ignoring loss).
What I have here is a 4 resonator tubular design where all inductors are
10 uH. (Keeping them equal, it is possible for the 50 ohm filter "class"
I made to have the inductors anywhere between 6.8 and 27 uH, using the
Norton transformer and R-scaling.) Tubular filters are not canonical.
The design theoretically has over 90 dB of attenuation at the 2nd
harmonic for the Q values given in the ASC file. It is physically
symmetrical. The heavy bias of poles at infinity was intentional because
the main purpose is harmonic filtering.




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