delorie.com/archives/browse.cgi | search |
X-Authentication-Warning: | delorie.com: mail set sender to geda-user-bounces using -f |
X-Recipient: | geda-user AT delorie DOT com |
X-Original-DKIM-Signature: | v=1; a=rsa-sha256; bh=2EAfpN6qegzDIEpBCXSIJjuzMn3D8UaX7jFmCo |
aOnBg=; c=relaxed/relaxed; d=earthlink.net; h=from:reply-to:subject: | |
date:to:cc:resent-date:resent-from:resent-to:resent-cc:in-reply-to: | |
references:list-id:list-help:list-unsubscribe:list-subscribe:list-post: | |
list-owner:list-archive; q=dns/txt; s=dk12062016; t=1660231996; | |
x=1660836796; b=lXHjw/Y0TkQAFHPjeRkwGGLjFNZObQxRewyxKFT4R3Ucosi7Y3IGC3D | |
9HKfCN0XYeaXeV49s4KhsPUoRoQO4y6vXnwFF2+NdGWS4dnMZB9LPZqC65DxOLaWJOl0cT9 | |
404zX8NDhmcESqjF+85s+bKXa/9UQwKUIKCnoytiXj8UB3KJaoQfgktBKK9cy5uWNUr2IHd | |
Ac3r3cazX8rtnvuIBLwzpK516A2dJmDcSdqSD0yFalbSXAg1jJdhpMdB8BzPzx6fh3H15Cv | |
YqiMISE48wBOU+jdhX3fGkFeAAQGlHnbGIM46iJEP2HVdhGjwX56o9jf5pXffbOgbGqIQ7D | |
DFA== | |
Message-ID: | <8aaff84f-d8cc-6f94-d971-d3f1ded2b47b@earthlink.net> |
Date: | Thu, 11 Aug 2022 10:33:15 -0500 |
MIME-Version: | 1.0 |
User-Agent: | Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 |
Thunderbird/91.12.0 | |
Subject: | Re: [geda-user] Active filter |
To: | geda-user AT delorie DOT com |
References: | <20220811143644 DOT 13DD38248090 AT turkos DOT aspodata DOT se> |
From: | "David W. Schultz (david DOT schultz AT earthlink DOT net) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com> |
Organization: | State of Total Disorganization |
In-Reply-To: | <20220811143644.13DD38248090@turkos.aspodata.se> |
Authentication-Results: | earthlink-vadesecure.net; |
auth=pass smtp.auth=david DOT schultz AT earthlink DOT net smtp.mailfrom=david DOT schultz AT earthlink DOT net; | |
Reply-To: | geda-user AT delorie DOT com |
Errors-To: | nobody AT delorie DOT com |
X-Mailing-List: | geda-user AT delorie DOT com |
X-Unsubscribes-To: | listserv AT delorie DOT com |
On 8/11/22 9:36 AM, karl AT aspodata DOT se [via geda-user AT delorie DOT com] wrote: > I have been looking into active filters and made this: > http://aspodata.se/git/openhw/bin/act_filter.pl > > It seems different sources gives me slightly different values > and most seem to gloss over the theory makeing it somewhat hard > to know if the calculations the program does are correct. > > If you are interested in this, please contact me. > > Regards, > /Karl Hammar > > My go to reference is the "Active Filter Cookbook" by Don Lancaster. (Who else?) If I need something not covered there, then it is time to dust off the ol' college text by Van Valkenburg -- http://davesrocketworks.com David Schultz
webmaster | delorie software privacy |
Copyright © 2019 by DJ Delorie | Updated Jul 2019 |