<?xml version='1.0' encoding='UTF-8'?><?xml-stylesheet href="http://www.blogger.com/styles/atom.css" type="text/css"?><feed xmlns='http://www.w3.org/2005/Atom' xmlns:openSearch='http://a9.com/-/spec/opensearchrss/1.0/' xmlns:georss='http://www.georss.org/georss' xmlns:gd='http://schemas.google.com/g/2005' xmlns:thr='http://purl.org/syndication/thread/1.0'><id>tag:blogger.com,1999:blog-2905184371447028954</id><updated>2012-02-16T11:06:05.593+01:00</updated><title type='text'>About Electronic</title><subtitle type='html'></subtitle><link rel='http://schemas.google.com/g/2005#feed' type='application/atom+xml' href='http://electro-sys.blogspot.com/feeds/posts/default'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/2905184371447028954/posts/default?max-results=100'/><link rel='alternate' type='text/html' href='http://electro-sys.blogspot.com/'/><link rel='hub' href='http://pubsubhubbub.appspot.com/'/><author><name>دفتر بی‌معنی</name><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='16' height='16' src='http://img2.blogblog.com/img/b16-rounded.gif'/></author><generator version='7.00' uri='http://www.blogger.com'>Blogger</generator><openSearch:totalResults>3</openSearch:totalResults><openSearch:startIndex>1</openSearch:startIndex><openSearch:itemsPerPage>100</openSearch:itemsPerPage><entry><id>tag:blogger.com,1999:blog-2905184371447028954.post-8946723921080885164</id><published>2011-01-31T18:29:00.000+01:00</published><updated>2011-01-31T18:29:38.035+01:00</updated><title type='text'>The LED scope schematics</title><content type='html'>Here I post the original&amp;nbsp;schematics of LED oscilloscope, there&amp;nbsp;are a few mistakes regarding to some ICs +/- connections, and also at the connections from U3, U4&amp;nbsp;toward U6 and U8&amp;nbsp;which they not make any sense!&lt;br /&gt;I did not had time to check these mistakes, so&amp;nbsp;please look for your self before you connect any power source to the circuit. If it is too confusing, you can always&amp;nbsp;email or PM me&amp;nbsp;here, I will try to help ASAP. &lt;br /&gt;&lt;br /&gt;U1 LF353 (op amp)&amp;nbsp;didn't work for me, I had to change it&amp;nbsp;with some other op amp ICs, like LM1458/1558 or&amp;nbsp;LM158/258/358&amp;nbsp;which all are Pin compatible with LF353.&lt;br /&gt;&lt;br /&gt;&lt;div class="separator" style="clear: both; text-align: center;"&gt;&lt;a href="http://4.bp.blogspot.com/_Z0pdnXjfZIQ/TUbrRh4EJaI/AAAAAAAAACg/L85SzrIRRd4/s1600/New+Scope+A.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"&gt;&lt;img border="0" height="241" s5="true" src="http://4.bp.blogspot.com/_Z0pdnXjfZIQ/TUbrRh4EJaI/AAAAAAAAACg/L85SzrIRRd4/s320/New+Scope+A.JPG" width="320" /&gt;&lt;/a&gt;&lt;/div&gt;&lt;br /&gt;&lt;div class="separator" style="clear: both; text-align: center;"&gt;&lt;a href="http://1.bp.blogspot.com/_Z0pdnXjfZIQ/TUbrbjaRLBI/AAAAAAAAACk/hTZ6Q_gGAYs/s1600/New+Scope+B.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"&gt;&lt;img border="0" height="241" s5="true" src="http://1.bp.blogspot.com/_Z0pdnXjfZIQ/TUbrbjaRLBI/AAAAAAAAACk/hTZ6Q_gGAYs/s320/New+Scope+B.JPG" width="320" /&gt;&lt;/a&gt;&lt;/div&gt;&lt;div class="blogger-post-footer"&gt;&lt;img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/2905184371447028954-8946723921080885164?l=electro-sys.blogspot.com' alt='' /&gt;&lt;/div&gt;</content><link rel='replies' type='application/atom+xml' href='http://electro-sys.blogspot.com/feeds/8946723921080885164/comments/default' title='Post Comments'/><link rel='replies' type='text/html' href='http://www.blogger.com/comment.g?blogID=2905184371447028954&amp;postID=8946723921080885164&amp;isPopup=true' title='2 Comments'/><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/2905184371447028954/posts/default/8946723921080885164'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/2905184371447028954/posts/default/8946723921080885164'/><link rel='alternate' type='text/html' href='http://electro-sys.blogspot.com/2011/01/led-scope-schematics.html' title='The LED scope schematics'/><author><name>دفتر بی‌معنی</name><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='16' height='16' src='http://img2.blogblog.com/img/b16-rounded.gif'/></author><media:thumbnail xmlns:media='http://search.yahoo.com/mrss/' url='http://4.bp.blogspot.com/_Z0pdnXjfZIQ/TUbrRh4EJaI/AAAAAAAAACg/L85SzrIRRd4/s72-c/New+Scope+A.JPG' height='72' width='72'/><thr:total>2</thr:total></entry><entry><id>tag:blogger.com,1999:blog-2905184371447028954.post-3166014746086288597</id><published>2010-02-10T11:27:00.002+01:00</published><updated>2010-02-10T11:33:12.682+01:00</updated><title type='text'>LED Oscilloscope</title><content type='html'>&lt;div class="separator" style="clear: both; text-align: center;"&gt;&lt;a href="http://2.bp.blogspot.com/_Z0pdnXjfZIQ/S2xI0KkDQlI/AAAAAAAAACI/j21S55ZAGnU/s1600-h/Billede(26).jpg" imageanchor="1" style="clear: right; cssfloat: right; float: right; margin-bottom: 1em; margin-left: 1em;"&gt;&lt;img border="0" height="150" kt="true" src="http://2.bp.blogspot.com/_Z0pdnXjfZIQ/S2xI0KkDQlI/AAAAAAAAACI/j21S55ZAGnU/s200/Billede(26).jpg" width="200" /&gt;&lt;/a&gt;&lt;a href="http://4.bp.blogspot.com/_Z0pdnXjfZIQ/S2xITUacvRI/AAAAAAAAAB4/PGk0BID5jxo/s1600-h/P4.jpg" imageanchor="1" style="clear: left; cssfloat: left; float: left; margin-bottom: 1em; margin-right: 1em;"&gt;&lt;img border="0" height="150" kt="true" src="http://4.bp.blogspot.com/_Z0pdnXjfZIQ/S2xITUacvRI/AAAAAAAAAB4/PGk0BID5jxo/s200/P4.jpg" width="200" /&gt;&lt;/a&gt;&lt;/div&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;-&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; &lt;br /&gt;&lt;div class="separator" style="border-bottom: medium none; border-left: medium none; border-right: medium none; border-top: medium none; clear: both; text-align: center;"&gt;&lt;/div&gt;&lt;div class="separator" style="clear: both; text-align: center;"&gt;&lt;/div&gt;For sometimes ago I have made a LED &lt;a href="http://en.wikipedia.org/wiki/Oscilloscope"&gt;Oscilloscope&lt;/a&gt;&amp;nbsp;and after awilde&amp;nbsp;I made a (not quite good looking) short&amp;nbsp;video&amp;nbsp;for broadcast on&amp;nbsp;the Youtube, as you can see it here. &lt;br /&gt;I have got some comments at the Youtube,&amp;nbsp;which&amp;nbsp;has asking about the Schematics for this project.&amp;nbsp;I have to say that I have got these&amp;nbsp;schematics from a friend&amp;nbsp;and&amp;nbsp;I also made&amp;nbsp;my own adaptations&amp;nbsp;and some&amp;nbsp;other changes to them... that's why I will try to&amp;nbsp;draw some new schematics with all my changes&amp;nbsp;and&amp;nbsp;adaptations&amp;nbsp;for all you who like to make this LED Oscilloscope.&lt;br /&gt;&lt;span style="color: #444444;"&gt;Wait to my next post!&lt;/span&gt;&lt;br /&gt;&lt;br /&gt;&lt;br /&gt;&lt;div style="border-bottom: medium none; border-left: medium none; border-right: medium none; border-top: medium none;"&gt;&lt;object height="344" width="425"&gt;&lt;param name="movie" value="http://www.youtube.com/v/27fKdfP_lc0&amp;amp;hl=en_US&amp;amp;fs=1&amp;amp;"&gt;&lt;/param&gt;&lt;param name="allowFullScreen" value="true"&gt;&lt;/param&gt;&lt;param name="allowscriptaccess" value="always"&gt;&lt;/param&gt;&lt;embed src="http://www.youtube.com/v/27fKdfP_lc0&amp;amp;hl=en_US&amp;amp;fs=1&amp;amp;" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"&gt;&lt;/embed&gt;&lt;/object&gt;&amp;nbsp;&lt;/div&gt;&lt;div class="separator" style="border-bottom: medium none; border-left: medium none; border-right: medium none; border-top: medium none; clear: both; text-align: center;"&gt;&lt;/div&gt;&lt;div class="separator" style="border-bottom: medium none; border-left: medium none; border-right: medium none; border-top: medium none; clear: both; text-align: center;"&gt;&lt;/div&gt;&lt;div class="separator" style="border-bottom: medium none; border-left: medium none; border-right: medium none; border-top: medium none; clear: both; text-align: center;"&gt;&lt;br /&gt;&lt;/div&gt;&lt;div class="separator" style="border-bottom: medium none; border-left: medium none; border-right: medium none; border-top: medium none; clear: both; text-align: center;"&gt;____________________________________________________________________________&lt;/div&gt;&lt;div class="blogger-post-footer"&gt;&lt;img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/2905184371447028954-3166014746086288597?l=electro-sys.blogspot.com' alt='' /&gt;&lt;/div&gt;</content><link rel='replies' type='application/atom+xml' href='http://electro-sys.blogspot.com/feeds/3166014746086288597/comments/default' title='Post Comments'/><link rel='replies' type='text/html' href='http://www.blogger.com/comment.g?blogID=2905184371447028954&amp;postID=3166014746086288597&amp;isPopup=true' title='0 Comments'/><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/2905184371447028954/posts/default/3166014746086288597'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/2905184371447028954/posts/default/3166014746086288597'/><link rel='alternate' type='text/html' href='http://electro-sys.blogspot.com/2010/02/about-led-oscilloscope.html' title='LED Oscilloscope'/><author><name>دفتر بی‌معنی</name><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='16' height='16' src='http://img2.blogblog.com/img/b16-rounded.gif'/></author><media:thumbnail xmlns:media='http://search.yahoo.com/mrss/' url='http://2.bp.blogspot.com/_Z0pdnXjfZIQ/S2xI0KkDQlI/AAAAAAAAACI/j21S55ZAGnU/s72-c/Billede(26).jpg' height='72' width='72'/><thr:total>0</thr:total></entry><entry><id>tag:blogger.com,1999:blog-2905184371447028954.post-6480751942377901338</id><published>2010-02-10T11:20:00.001+01:00</published><updated>2010-02-10T11:23:29.734+01:00</updated><title type='text'>The Forrest Mims</title><content type='html'>The Forrest Mims circuit book&lt;br /&gt;The Forrset Mims book has some circuit about LED Oscilloscope, the idea for making a LED oscilloscope has generally come from his circuit.&lt;br /&gt;Here&amp;nbsp;is a link for his &lt;a href="http://books.google.dk/books?id=STzitya5iwgC&amp;amp;lpg=PA66&amp;amp;ots=Ld6pNDhHxP&amp;amp;dq=%22LED%20Oscilloscope%22&amp;amp;hl=en&amp;amp;pg=PA66#v=onepage&amp;amp;q=&amp;amp;f=false"&gt;circuit scrapbook, volume 1&lt;/a&gt;, from Google&lt;br /&gt;&lt;br /&gt;&lt;br /&gt;&lt;br /&gt;&lt;iframe frameborder="0" height="500" scrolling="no" src="http://books.google.dk/books?id=STzitya5iwgC&amp;amp;lpg=PA66&amp;amp;ots=Ld6pNDhHxP&amp;amp;dq=%22LED%20Oscilloscope%22&amp;amp;hl=en&amp;amp;pg=PA69&amp;amp;output=embed" style="border-bottom: 0px; border-left: 0px; border-right: 0px; border-top: 0px; height: 500px; width: 670px;" width="500"&gt;&lt;/iframe&gt;&lt;br /&gt;&lt;br /&gt;__________________________________________________________________________________&lt;div class="blogger-post-footer"&gt;&lt;img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/2905184371447028954-6480751942377901338?l=electro-sys.blogspot.com' alt='' /&gt;&lt;/div&gt;</content><link rel='replies' type='application/atom+xml' href='http://electro-sys.blogspot.com/feeds/6480751942377901338/comments/default' title='Post Comments'/><link rel='replies' type='text/html' href='http://www.blogger.com/comment.g?blogID=2905184371447028954&amp;postID=6480751942377901338&amp;isPopup=true' title='0 Comments'/><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/2905184371447028954/posts/default/6480751942377901338'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/2905184371447028954/posts/default/6480751942377901338'/><link rel='alternate' type='text/html' href='http://electro-sys.blogspot.com/2010/02/forrest-mims.html' title='The Forrest Mims'/><author><name>دفتر بی‌معنی</name><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='16' height='16' src='http://img2.blogblog.com/img/b16-rounded.gif'/></author><thr:total>0</thr:total></entry></feed>
