<html><head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;"><div>Andrew</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>There are a lots of analog computers that one could build Perhaps the simplest would be to use 741 op aps to solve differential equation problems. They are not that hard to build if you have a circuits lab and know the basic of circuit theory. Needless to say, the IEEE has a number of articles about how to build them. For Example there is: IEEE TRANSACTIONS ON EDUCATION, VOL. 54, NO. 4, NOVEMBER 2011
An Analog Computer for Electronic Engineering
Education
Andrew L. Fitch, Herbert H. C. Iu, </div><div><br></div><div>DAG</div><br><div apple-content-edited="true">
<span class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px;"><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div>--------------------------------</div><div>David Alan Grier</div><div>Past President, IEEE Computer Society </div><div><a href="http://video.dagrier.net">http://video.dagrier.net</a></div><div><br></div><div>Center for International Science and Technology Policy </div><div>George Washington University</div><div><a href="mailto:grier@gwu.edu">grier@gwu.edu</a></div><div><br></div></div></span><br class="Apple-interchange-newline"></div></span><br class="Apple-interchange-newline"></div></span><br class="Apple-interchange-newline"></div></span><br class="Apple-interchange-newline"></span><br class="Apple-interchange-newline">
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<br><div><div>On May 13, 2014, at 9:02 PM, Andrew Meade McGee <<a href="mailto:amm5ae@virginia.edu">amm5ae@virginia.edu</a>> wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div dir="ltr"><div><div><div><div><div>Dear List Folks,<br><br></div>First, a thanks
and update. Last fall I e-mailed this list seeking input on course
design for a four week computer history class and received many
wonderful, instructive answers. Shortly after writing I was sidelined
with some unexpected kidney surgeries and never got to respond with
thanks. I'm all healed up now and am glad to report that the class is in
progress and makes use of many group members' suggestions. It's going
smashingly well. <br>
<br></div>Which leads to another call for guidance: some of my students
have expressed interest in building an analog computer for their final
project, and have approached me because they can't find instructions on
how to do it. I've scoured the web, and while I have access to plenty of
50s- and 60s-era textbooks on principles of analog computing, I can't
seem t find a simple wiring schema/set of blueprints suitable for
humanities undergrads with limited workshop experience.<br>
<br></div>Have any of you ever had students build a simple analog
computer? Any suggestions on guidance or instructions or templates I
might provide the eager but inexperienced students? <br><br></div>Thank you,<br></div>
Andrew</div>
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