[sdiy] Measuring filter response

Harry Bissell harrybissell at wowway.com
Mon Aug 15 21:55:56 CEST 2011


If you don't use a storage scope its pretty tough to view lower frequencies...

H^) harry

----- Original Message -----
From: David G Dixon <dixon at mail.ubc.ca>
To: 'Neil Johnson' <neil.johnson97 at ntlworld.com>, synth-diy at dropmix.xs4all.nl
Sent: Mon, 15 Aug 2011 15:45:30 -0400 (EDT)
Subject: Re: [sdiy] Measuring filter response

I once read in an old textbook (pre-computer, pre-digital scope) about using
a slow sawtooth to ramp the filter frequency, and also using this saw to
trigger the scope, then just feeding a sine to the filter and looking at the
response.  Has anybody tried that?

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-- 
Harry Bissell & Nora Abdullah 4eva



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