https://community.element14.com/challenges-projects/element14-presents/workbenchwednesdays/w/documents/5189/measuring-a-555-on-an-oscilloscope---workbench-wednesdays-33en-USTelligent Community 12https://community.element14.com/challenges-projects/element14-presents/workbenchwednesdays/w/documents/5189/measuring-a-555-on-an-oscilloscope---workbench-wednesdays-33Wed, 20 Jan 2021 08:24:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:e335ef57-ba86-42d5-94f4-2f9b45f740ecMatthttps://community.element14.com/challenges-projects/element14-presents/workbenchwednesdays/w/documents/5189/measuring-a-555-on-an-oscilloscope---workbench-wednesdays-33#commentsCurrent Revision posted to Documents by Matt on 1/20/2021 8:24:00 AM<br /> <p><span><a href="https://www.youtube.com/watch?v=4r7zwNKQvn0">www.youtube.com/watch</a></span></p> <p style="margin:0;">&nbsp;</p> <p style="background-color:#e9f6fc;border:1px solid #b8d7e5;margin:0;max-width:744px;padding:8px;"><span style="color:#000000;font-family:&#39;Open Sans&#39;, Arial, sans-serif;text-align:justify;">The 555 is a very popular chip, and for good reason. It is such a versatile timer. Learn about 555 measurements like how to measure the voltage divider inside the chip and what is going on with the signals in an astable multivibrator (clock) circuit. The key to the 555 circuit is connecting the threshold and trigger pins together. But, until you see the schematic and waveforms it may not be obvious why. </span></p> <p style="margin:0;padding:0px;">&nbsp;</p> <p style="margin:0;">This video started out as me just wanting to learn more about the 555. I&rsquo;ve read the datasheet, built a discrete 555 kit, and watched the TLC episode multiple times on the 555. It was not until I saw the waveforms on an oscilloscope that I finally &ldquo;got&rdquo; what was going on!</p> <p style="margin:0;padding:0px;">&nbsp;</p> <h2 id="mcetoc_1fl78jjng0"><span style="color:#3334ca;">Supplemental Content:</span></h2> <ul> <li><a class="jive-link-wiki-small" href="/challenges-projects/element14-presents/thelearningcircuit/w/documents/4615/the-learning-circuit-62-how-555-timers-work" data-e14adj="t">The Learning Circuit: 62: How 555 Timers Work</a></li> <li><a class="jive-link-wiki-small" href="/challenges-projects/element14-presents/workbenchwednesdays/w/documents/5079/workbench-wednesday-29-what-active-components-do-you-need" data-e14adj="t">Workbench Wednesday 29: What Active Components Do You Need?</a></li> <li><a class="jive-link-blog-small" href="/challenges-projects/project14/backtoanalog/b/blog/posts/555-timer-voltage-inverter" data-e14adj="t">555 Timer Voltage Inverter</a> by <span><a href="/members/fmilburn">fmilburn</a></span></li> </ul> <p style="margin:0;"><span style="color:#3334ca;font-size:20px;font-weight:bold;">Bill of Material:</span></p> <table class="jiveBorder" style="border:1px solid #C6C6C6;" border="1"> <thead> <tr> <th style="background-color:#f2f2f2;border:1px solid #C6C6C6;color:#505050;padding:6px;text-align:left;">Product Name</th> <th style="background-color:#f2f2f2;border:1px solid #C6C6C6;color:#505050;padding:6px;text-align:left;">Manufacturer</th> <th style="background-color:#f2f2f2;border:1px solid #C6C6C6;color:#505050;padding:6px;text-align:left;">Quantity</th> <th style="background-color:#f2f2f2;border:1px solid #C6C6C6;color:#505050;padding:6px;text-align:left;"><span><span class="e14-init-shown e14-product-link-buynow" style="white-space:nowrap;">Buy Now</span></span></th> <th style="background-color:#f2f2f2;border:1px solid #C6C6C6;color:#505050;padding:6px;text-align:left;"><span><span id="addProduct-Zy1d8ky1-linked" class="e14-init-shown e14-product-link-buynow" style="white-space:nowrap;"><a class="jive-link-product-addtolist" href="https://www.element14.com/community/view-product.jspa?fsku=2293786~1,9663762~1&amp;nsku=75R5336~1,57K3903~1&amp;COM=noscript&amp;CMP=e14c-direct-ugc&amp;osetc=e14c-direct-ugc" target="_blank" data-e14adj="t"><span class="pf-widget-map pf-productlink-cart-icon"></span></a><a class="jive-link-product pf-embedded-product-link" href="https://www.element14.com/community/view-product.jspa?fsku=2293786~1,9663762~1&amp;nsku=75R5336~1,57K3903~1&amp;COM=noscript&amp;CMP=e14c-direct-ugc&amp;osetc=e14c-direct-ugc" target="_blank" data-e14adj="t">Buy Kit</a></span><span id="addProduct-Zy1d8ky1-unlinked" class="e14-init-hidden">Buy Kit</span></span></th> </tr> </thead> <tbody> <tr> <td style="border:1px solid #C6C6C6;padding:6px;">S1751-46R PCB Test Point (Surface Mount)</td> <td style="border:1px solid #C6C6C6;padding:6px;">Harwin</td> <td style="border:1px solid #C6C6C6;padding:6px;">1</td> <td style="border:1px solid #C6C6C6;padding:6px;"><span><span class="e14-init-shown e14-product-link-buynow" style="white-space:nowrap;"><a id="e14-product-link-afc59" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=2293786&nsku=75R5336&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-link" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('afc59'));" data-farnell="2293786" data-newark="75R5336" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></span></td> <td style="border:1px solid #C6C6C6;padding:6px;"><span><span id="addProduct-qOe1PYMq-linked" class="e14-init-shown e14-product-link-buynow" style="white-space:nowrap;"><a class="jive-link-product-addtolist" href="https://www.element14.com/community/view-product.jspa?fsku=2293786~1&amp;nsku=75R5336~1&amp;COM=noscript&amp;CMP=e14c-direct-ugc&amp;osetc=e14c-direct-ugc" target="_blank" data-e14adj="t"><span class="pf-widget-map pf-productlink-cart-icon"></span></a><a class="jive-link-product pf-embedded-product-link" href="https://www.element14.com/community/view-product.jspa?fsku=2293786~1&amp;nsku=75R5336~1&amp;COM=noscript&amp;CMP=e14c-direct-ugc&amp;osetc=e14c-direct-ugc" target="_blank" data-e14adj="t">Buy Now</a></span><span id="addProduct-qOe1PYMq-unlinked" class="e14-init-hidden">Buy Now</span></span></td> </tr> <tr> <td style="border:1px solid #C6C6C6;padding:6px;"><span><span id="addProduct-ID1eBwTw-linked" class="e14-init-shown" style="white-space:nowrap;"><a class="jive-link-product-addtolist" href="https://www.element14.com/community/view-product.jspa?fsku=9663762&amp;nsku=57K3903&amp;COM=noscript&amp;CMP=e14c-direct-ugc&amp;osetc=e14c-direct-ugc" target="_blank" data-e14adj="t"><span class="pf-widget-map pf-productlink-cart-icon"></span></a><a class="jive-link-product pf-embedded-product-link" href="https://www.element14.com/community/view-product.jspa?fsku=9663762&amp;nsku=57K3903&amp;COM=noscript&amp;CMP=e14c-direct-ugc&amp;osetc=e14c-direct-ugc" target="_blank" data-e14adj="t">ICM7555IPAZ</a></span><span id="addProduct-ID1eBwTw-unlinked" class="e14-init-hidden">ICM7555IPAZ</span></span> - CMOS 555</td> <td style="border:1px solid #C6C6C6;padding:6px;">Renesas</td> <td style="border:1px solid #C6C6C6;padding:6px;">1</td> <td style="border:1px solid #C6C6C6;padding:6px;"><span><span class="e14-init-shown e14-product-link-buynow" style="white-space:nowrap;"><a id="e14-product-link-82907" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=9663762&nsku=57K3903&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-link" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('82907'));" data-farnell="9663762" data-newark="57K3903" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></span></td> <td style="border:1px solid #C6C6C6;padding:6px;"><span><span id="addProduct-N6QQgdKV-linked" class="e14-init-shown e14-product-link-buynow" style="white-space:nowrap;"><a class="jive-link-product-addtolist" href="https://www.element14.com/community/view-product.jspa?fsku=9663762~1&amp;nsku=57K3903~1&amp;COM=noscript&amp;CMP=e14c-direct-ugc&amp;osetc=e14c-direct-ugc" target="_blank" data-e14adj="t"><span class="pf-widget-map pf-productlink-cart-icon"></span></a><a class="jive-link-product pf-embedded-product-link" href="https://www.element14.com/community/view-product.jspa?fsku=9663762~1&amp;nsku=57K3903~1&amp;COM=noscript&amp;CMP=e14c-direct-ugc&amp;osetc=e14c-direct-ugc" target="_blank" data-e14adj="t">Buy Now</a></span><span id="addProduct-N6QQgdKV-unlinked" class="e14-init-hidden">Buy Now</span></span></td> </tr> </tbody> </table> <p style="margin:0;padding:0px;">&nbsp;</p> <div style="background:#ffffff;border:1px solid #dadada;margin:0;padding:14px 16px 16px 18px;vertical-align:top;"> <div style="display:inline-block;float:left;padding:0px 25px 8px 0px;"><a href="/challengesprojects/element14-presents/" data-e14adj="t"><img alt="Workbench Wednesday" src="/e14/assets/main/2021/e14pWorkbench%20Wednesdays_2021.png" width="180px" /></a></div> <div style="display:inline-block;vertical-align:top;width:70%;"></div> <div style="display:inline-block;vertical-align:top;width:70%;"></div> <div style="display:inline-block;vertical-align:top;width:70%;"><span><a class="jivecontainerTT-hover-container jive-link-community-small" href="/challengesprojects/element14-presents/" data-e14adj="t">element14 presents</a></span>&nbsp; <strong>|</strong>&nbsp; <a class="jive-link-wiki-small" href="/challenges-projects/element14-presents/vcp-program/w/documents/3704/vcp-biography-james" data-e14adj="t">About James</a>&nbsp;<strong>|</strong>&nbsp; <a class="jivecontainerTT-hover-container jive-link-community-small" style="color:#007fac;font-family:Arial, &#39;Lucida Grande&#39;, sans-serif;" href="/challengesprojects/element14-presents/workbenchwednesdays/" data-e14adj="t">Workbench Wednesdays</a></div> <div style="display:inline-block;vertical-align:top;width:70%;"> <p style="margin:5;"></p> <p style="margin:0;"></p> <p style="margin:0;"></p> <p style="margin:0;"></p> </div> </div><div style="clear:both;"></div> <div style="font-size: 90%;">Tags: 555 circuit, workbench_wednesdays, e14presents_baldengineer, 555 timer, 555 measurements, workbench, astable multivibrator measurements</div> https://community.element14.com/challenges-projects/element14-presents/workbenchwednesdays/w/documents/5189/measuring-a-555-on-an-oscilloscope---workbench-wednesdays-33/revision/3Tue, 23 Nov 2021 20:44:36 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:e335ef57-ba86-42d5-94f4-2f9b45f740eckellyhensenhttps://community.element14.com/challenges-projects/element14-presents/workbenchwednesdays/w/documents/5189/measuring-a-555-on-an-oscilloscope---workbench-wednesdays-33#commentsRevision 3 posted to Documents by kellyhensen on 11/23/2021 8:44:36 PM<br /> <p><span><a href="https://www.youtube.com/watch?v=4r7zwNKQvn0">www.youtube.com/watch</a></span></p> <p style="margin:0;">&nbsp;</p> <p style="background-color:#e9f6fc;border:1px solid #b8d7e5;margin:0;max-width:744px;padding:8px;"><span style="color:#000000;font-family:&#39;Open Sans&#39;, Arial, sans-serif;text-align:justify;">The 555 is a very popular chip, and for good reason. It is such a versatile timer. Learn about 555 measurements like how to measure the voltage divider inside the chip and what is going on with the signals in an astable multivibrator (clock) circuit. The key to the 555 circuit is connecting the threshold and trigger pins together. But, until you see the schematic and waveforms it may not be obvious why. </span></p> <p style="margin:0;padding:0px;">&nbsp;</p> <p style="margin:0;">This video started out as me just wanting to learn more about the 555. I&rsquo;ve read the datasheet, built a discrete 555 kit, and watched the TLC episode multiple times on the 555. It was not until I saw the waveforms on an oscilloscope that I finally &ldquo;got&rdquo; what was going on!</p> <p style="margin:0;padding:0px;">&nbsp;</p> <h2 id="mcetoc_1fl78jjng0"><span style="color:#3334ca;">Supplemental Content:</span></h2> <ul> <li><a class="jive-link-wiki-small" href="/challenges-projects/element14-presents/thelearningcircuit/w/documents/4615/the-learning-circuit-62-how-555-timers-work">The Learning Circuit: 62: How 555 Timers Work</a></li> <li><a class="jive-link-wiki-small" href="/challenges-projects/element14-presents/workbenchwednesdays/w/documents/5079/workbench-wednesday-29-what-active-components-do-you-need">Workbench Wednesday 29: What Active Components Do You Need?</a></li> <li><a class="jive-link-blog-small" href="/challenges-projects/project14/backtoanalog/b/blog/posts/555-timer-voltage-inverter">555 Timer Voltage Inverter</a> by <span><a href="/members/fmilburn">fmilburn</a></span></li> </ul> <p style="margin:0;"><span style="color:#3334ca;font-size:20px;font-weight:bold;">Bill of Material:</span></p> <table class="jiveBorder" style="border:1px solid #C6C6C6;" border="1"> <thead> <tr> <th style="background-color:#f2f2f2;border:1px solid #C6C6C6;color:#505050;padding:6px;text-align:left;">Product Name</th> <th style="background-color:#f2f2f2;border:1px solid #C6C6C6;color:#505050;padding:6px;text-align:left;">Manufacturer</th> <th style="background-color:#f2f2f2;border:1px solid #C6C6C6;color:#505050;padding:6px;text-align:left;">Quantity</th> <th style="background-color:#f2f2f2;border:1px solid #C6C6C6;color:#505050;padding:6px;text-align:left;"><span><span class="e14-init-shown e14-product-link-buynow" style="white-space:nowrap;">Buy Now</span></span></th> <th style="background-color:#f2f2f2;border:1px solid #C6C6C6;color:#505050;padding:6px;text-align:left;"><span><span id="addProduct-Zy1d8ky1-linked" class="e14-init-shown e14-product-link-buynow" style="white-space:nowrap;"><a class="jive-link-product-addtolist" href="https://www.element14.com/community/view-product.jspa?fsku=2293786~1,9663762~1&amp;nsku=75R5336~1,57K3903~1&amp;COM=noscript" rel="noopener noreferrer" target="_blank"><span class="pf-widget-map pf-productlink-cart-icon"></span></a><a class="jive-link-product pf-embedded-product-link" href="https://www.element14.com/community/view-product.jspa?fsku=2293786~1,9663762~1&amp;nsku=75R5336~1,57K3903~1&amp;COM=noscript" rel="noopener noreferrer" target="_blank">Buy Kit</a></span><span id="addProduct-Zy1d8ky1-unlinked" class="e14-init-hidden">Buy Kit</span></span></th> </tr> </thead> <tbody> <tr> <td style="border:1px solid #C6C6C6;padding:6px;">S1751-46R PCB Test Point (Surface Mount)</td> <td style="border:1px solid #C6C6C6;padding:6px;">Harwin</td> <td style="border:1px solid #C6C6C6;padding:6px;">1</td> <td style="border:1px solid #C6C6C6;padding:6px;"><span><span class="e14-init-shown e14-product-link-buynow" style="white-space:nowrap;"><a id="e14-product-link-872ab" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=2293786&nsku=75R5336&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-link" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('872ab'));" data-farnell="2293786" data-newark="75R5336" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></span></td> <td style="border:1px solid #C6C6C6;padding:6px;"><span><span id="addProduct-qOe1PYMq-linked" class="e14-init-shown e14-product-link-buynow" style="white-space:nowrap;"><a class="jive-link-product-addtolist" href="https://www.element14.com/community/view-product.jspa?fsku=2293786~1&amp;nsku=75R5336~1&amp;COM=noscript" rel="noopener noreferrer" target="_blank"><span class="pf-widget-map pf-productlink-cart-icon"></span></a><a class="jive-link-product pf-embedded-product-link" href="https://www.element14.com/community/view-product.jspa?fsku=2293786~1&amp;nsku=75R5336~1&amp;COM=noscript" rel="noopener noreferrer" target="_blank">Buy Now</a></span><span id="addProduct-qOe1PYMq-unlinked" class="e14-init-hidden">Buy Now</span></span></td> </tr> <tr> <td style="border:1px solid #C6C6C6;padding:6px;"><span><span id="addProduct-ID1eBwTw-linked" class="e14-init-shown" style="white-space:nowrap;"><a class="jive-link-product-addtolist" href="https://www.element14.com/community/view-product.jspa?fsku=9663762&amp;nsku=57K3903&amp;COM=noscript" rel="noopener noreferrer" target="_blank"><span class="pf-widget-map pf-productlink-cart-icon"></span></a><a class="jive-link-product pf-embedded-product-link" href="https://www.element14.com/community/view-product.jspa?fsku=9663762&amp;nsku=57K3903&amp;COM=noscript" rel="noopener noreferrer" target="_blank">ICM7555IPAZ</a></span><span id="addProduct-ID1eBwTw-unlinked" class="e14-init-hidden">ICM7555IPAZ</span></span> - CMOS 555</td> <td style="border:1px solid #C6C6C6;padding:6px;">Renesas</td> <td style="border:1px solid #C6C6C6;padding:6px;">1</td> <td style="border:1px solid #C6C6C6;padding:6px;"><span><span class="e14-init-shown e14-product-link-buynow" style="white-space:nowrap;"><a id="e14-product-link-f585e" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=9663762&nsku=57K3903&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-link" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('f585e'));" data-farnell="9663762" data-newark="57K3903" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></span></td> <td style="border:1px solid #C6C6C6;padding:6px;"><span><span id="addProduct-N6QQgdKV-linked" class="e14-init-shown e14-product-link-buynow" style="white-space:nowrap;"><a class="jive-link-product-addtolist" href="https://www.element14.com/community/view-product.jspa?fsku=9663762~1&amp;nsku=57K3903~1&amp;COM=noscript" rel="noopener noreferrer" target="_blank"><span class="pf-widget-map pf-productlink-cart-icon"></span></a><a class="jive-link-product pf-embedded-product-link" href="https://www.element14.com/community/view-product.jspa?fsku=9663762~1&amp;nsku=57K3903~1&amp;COM=noscript" rel="noopener noreferrer" target="_blank">Buy Now</a></span><span id="addProduct-N6QQgdKV-unlinked" class="e14-init-hidden">Buy Now</span></span></td> </tr> </tbody> </table> <p style="margin:0;padding:0px;">&nbsp;</p> <div style="background:#ffffff;border:1px solid #dadada;margin:0;padding:14px 16px 16px 18px;vertical-align:top;"> <div style="display:inline-block;float:left;padding:0px 25px 8px 0px;"><a href="/challengesprojects/element14-presents/"><img alt="Workbench Wednesday" src="/e14/assets/main/2021/e14pWorkbench%20Wednesdays_2021.png" width="180px" /></a></div> <div style="display:inline-block;vertical-align:top;width:70%;"></div> <div style="display:inline-block;vertical-align:top;width:70%;"></div> <div style="display:inline-block;vertical-align:top;width:70%;"><span><a class="jivecontainerTT-hover-container jive-link-community-small" href="/challengesprojects/element14-presents/">element14 presents</a></span>&nbsp; <strong>|</strong>&nbsp; <a class="jive-link-wiki-small" href="/challenges-projects/element14-presents/vcp-program/w/documents/3704/vcp-biography-james">About James</a>&nbsp;<strong>|</strong>&nbsp; <a class="jivecontainerTT-hover-container jive-link-community-small" style="color:#007fac;font-family:Arial, &#39;Lucida Grande&#39;, sans-serif;" href="/challengesprojects/element14-presents/workbenchwednesdays/">Workbench Wednesdays</a></div> <div style="display:inline-block;vertical-align:top;width:70%;"> <p style="margin:5;"></p> <p style="margin:0;"></p> <p style="margin:0;"></p> <p style="margin:0;"></p> </div> </div><div style="clear:both;"></div> <div style="font-size: 90%;">Tags: 555 circuit, workbench_wednesdays, e14presents_baldengineer, 555 timer, 555 measurements, workbench, astable multivibrator measurements</div> https://community.element14.com/challenges-projects/element14-presents/workbenchwednesdays/w/documents/5189/measuring-a-555-on-an-oscilloscope---workbench-wednesdays-33/revision/1Wed, 14 Apr 2021 14:00:31 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:e335ef57-ba86-42d5-94f4-2f9b45f740ectariq.ahmadhttps://community.element14.com/challenges-projects/element14-presents/workbenchwednesdays/w/documents/5189/measuring-a-555-on-an-oscilloscope---workbench-wednesdays-33#commentsRevision 1 posted to Documents by tariq.ahmad on 4/14/2021 2:00:31 PM<br /> <div style="background:#ffffff;padding:14px 16px 16px 18px;margin:0;vertical-align:top;border:1px solid #dadada;"><div style="float:left;display:inline-block;padding:0px 25px 8px 0px;"><a href="/challengesprojects/element14-presents/"><img alt="element14 presents" src="/e14/assets/legacy/2018/e14PresentsJune818.png" width="180px" /></a></div><div style="display:inline-block;vertical-align:top;width:70%;"><span style="font-size:18px;font-weight:bold;">Measuring A 555 On An Oscilloscope</span><p style="margin:0;"><span><a class="jivecontainerTT-hover-container jive-link-community-small" href="/challengesprojects/element14-presents/">element14 Presents</a></span>&nbsp; <strong>|</strong>&nbsp; <a class="jive-link-wiki-small" href="/challenges-projects/element14-presents/vcp-program/w/documents/3704/vcp-biography-james">Bald Engineer: James Lewis&#39; VCP Profile </a> <span style="padding-right:5px;"> </span><strong>|</strong>&nbsp; <a class="jivecontainerTT-hover-container jive-link-community-small" href="/challengesprojects/element14-presents/workbenchwednesdays/" style="font-family:Arial, &#39;Lucida Grande&#39;, sans-serif;color:#007fac;">Workbench Wednesdays</a></p></div></div><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;"></p><span><a href="https://www.youtube.com/watch?v=4r7zwNKQvn0">www.youtube.com/watch</a></span><p style="margin:0;"></p><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;border:1px solid #b8d7e5;background-color:#e9f6fc;padding:8px;max-width:744px;"><span style="color:#000000;font-family:&#39;Open Sans&#39;, Arial, sans-serif;text-align:justify;">The 555 is a very popular chip, and for good reason. It is such a versatile timer. Learn about 555 measurements like how to measure the voltage divider inside the chip and what is going on with the signals in an astable multivibrator (clock) circuit. The key to the 555 circuit is connecting the threshold and trigger pins together. But, until you see the schematic and waveforms it may not be obvious why. </span></p><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;">This video started out as me just wanting to learn more about the 555. I’ve read the datasheet, built a discrete 555 kit, and watched the TLC episode multiple times on the 555. It was not until I saw the waveforms on an oscilloscope that I finally “got” what was going on!</p><p style="margin:0;padding:0px;">&nbsp;</p><h2><span style="color:#3334ca;">Supplemental Content:</span></h2><p style="margin:0;padding:0px;">&nbsp;</p><ul><li><a class="jive-link-wiki-small" href="/challengesprojects/element14-presents/thelearningcircuit/w/documents/4615/the-learning-circuit-62-how-555-timers-work">The Learning Circuit: 62: How 555 Timers Work</a></li><li><a class="jive-link-wiki-small" href="/challenges-projects/element14-presents/workbenchwednesdays/w/documents/5079/workbench-wednesday-29-what-active-components-do-you-need">Workbench Wednesday 29: What Active Components Do You Need?</a></li><li><a class="jive-link-blog-small" href="/challengesprojects/project14/backtoanalog/b/blog/posts/555-timer-voltage-inverter">555 Timer Voltage Inverter</a> by <span><a href="/members/fmilburn">fmilburn</a></span></li></ul><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;"><span style="color:#3334ca;font-size:20px;font-weight:bold;">Bill of Material:</span></p><p style="margin:0;padding:0px;">&nbsp;</p><table border="1" class="jiveBorder mce-item-table" style="border:1px solid #C6C6C6;"><thead><tr><th style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;color:#505050;background-color:#f2f2f2;text-align:left;">Product Name</th><th style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;color:#505050;background-color:#f2f2f2;text-align:left;">Manufacturer</th><th style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;color:#505050;background-color:#f2f2f2;text-align:left;">Quantity</th><th style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;color:#505050;background-color:#f2f2f2;text-align:left;"><span><span><a id="e14-product-link-a433e" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=2293786,9663762&nsku=75R5336,57K3903&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_BUY_KIT" class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('a433e'));" data-farnell="2293786~1,9663762~1" data-newark="75R5336~1,57K3903~1" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Kit</a> </span></span></th></tr></thead><tbody><tr><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">S1751-46R PCB Test Point (Surface Mount)</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">Harwin</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">1</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;"><span><span><a id="e14-product-link-e0090" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=2293786&nsku=75R5336&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('e0090'));" data-farnell="2293786~1" data-newark="75R5336~1" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></span></td></tr><tr><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;"><span><span><a id="e14-product-link-10acb" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=9663762&nsku=57K3903&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-link" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('10acb'));" data-farnell="9663762" data-newark="57K3903" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >ICM7555IPAZ</a> </span></span> - CMOS 555</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">Renesas</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">1</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;"><span><span><a id="e14-product-link-69fab" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=9663762&nsku=57K3903&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('69fab'));" data-farnell="9663762~1" data-newark="57K3903~1" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></span></td></tr></tbody></table><div style="clear:both;"></div> <div style="font-size: 90%;">Tags: 555 circuit, 555 measurements, astable multivibrator measurements</div> https://community.element14.com/challenges-projects/element14-presents/workbenchwednesdays/w/documents/5189/measuring-a-555-on-an-oscilloscope---workbench-wednesdays-33/revision/2Wed, 14 Apr 2021 14:00:31 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:e335ef57-ba86-42d5-94f4-2f9b45f740ectariq.ahmadhttps://community.element14.com/challenges-projects/element14-presents/workbenchwednesdays/w/documents/5189/measuring-a-555-on-an-oscilloscope---workbench-wednesdays-33#commentsRevision 2 posted to Documents by tariq.ahmad on 4/14/2021 2:00:31 PM<br /> <div style="background:#ffffff;padding:14px 16px 16px 18px;margin:0;vertical-align:top;border:1px solid #dadada;"><div style="float:left;display:inline-block;padding:0px 25px 8px 0px;"><a href="/challengesprojects/element14-presents/"><img alt="element14 presents" src="/e14/assets/legacy/2018/e14PresentsJune818.png" width="180px" /></a></div><div style="display:inline-block;vertical-align:top;width:70%;"><span style="font-size:18px;font-weight:bold;">Measuring A 555 On An Oscilloscope</span><p style="margin:0;"><span><a class="jivecontainerTT-hover-container jive-link-community-small" href="/challengesprojects/element14-presents/">element14 Presents</a></span>&nbsp; <strong>|</strong>&nbsp; <a class="jive-link-wiki-small" href="/challenges-projects/element14-presents/vcp-program/w/documents/3704/vcp-biography-james">Bald Engineer: James Lewis&#39; VCP Profile </a> <span style="padding-right:5px;"> </span><strong>|</strong>&nbsp; <a class="jivecontainerTT-hover-container jive-link-community-small" href="/challengesprojects/element14-presents/workbenchwednesdays/" style="font-family:Arial, &#39;Lucida Grande&#39;, sans-serif;color:#007fac;">Workbench Wednesdays</a></p></div></div><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;"></p><span><a href="https://www.youtube.com/watch?v=4r7zwNKQvn0">www.youtube.com/watch</a></span><p style="margin:0;"></p><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;border:1px solid #b8d7e5;background-color:#e9f6fc;padding:8px;max-width:744px;"><span style="color:#000000;font-family:&#39;Open Sans&#39;, Arial, sans-serif;text-align:justify;">The 555 is a very popular chip, and for good reason. It is such a versatile timer. Learn about 555 measurements like how to measure the voltage divider inside the chip and what is going on with the signals in an astable multivibrator (clock) circuit. The key to the 555 circuit is connecting the threshold and trigger pins together. But, until you see the schematic and waveforms it may not be obvious why. </span></p><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;">This video started out as me just wanting to learn more about the 555. I’ve read the datasheet, built a discrete 555 kit, and watched the TLC episode multiple times on the 555. It was not until I saw the waveforms on an oscilloscope that I finally “got” what was going on!</p><p style="margin:0;padding:0px;">&nbsp;</p><h2><span style="color:#3334ca;">Supplemental Content:</span></h2><p style="margin:0;padding:0px;">&nbsp;</p><ul><li><a class="jive-link-wiki-small" href="/challenges-projects/element14-presents/thelearningcircuit/w/documents/4615/the-learning-circuit-62-how-555-timers-work">The Learning Circuit: 62: How 555 Timers Work</a></li><li><a class="jive-link-wiki-small" href="/challenges-projects/element14-presents/workbenchwednesdays/w/documents/5079/workbench-wednesday-29-what-active-components-do-you-need">Workbench Wednesday 29: What Active Components Do You Need?</a></li><li><a class="jive-link-blog-small" href="/challenges-projects/project14/backtoanalog/b/blog/posts/555-timer-voltage-inverter">555 Timer Voltage Inverter</a> by <span><a href="/members/fmilburn">fmilburn</a></span></li></ul><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;"><span style="color:#3334ca;font-size:20px;font-weight:bold;">Bill of Material:</span></p><p style="margin:0;padding:0px;">&nbsp;</p><table border="1" class="jiveBorder mce-item-table" style="border:1px solid #C6C6C6;"><thead><tr><th style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;color:#505050;background-color:#f2f2f2;text-align:left;">Product Name</th><th style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;color:#505050;background-color:#f2f2f2;text-align:left;">Manufacturer</th><th style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;color:#505050;background-color:#f2f2f2;text-align:left;">Quantity</th><th style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;color:#505050;background-color:#f2f2f2;text-align:left;"><span><span class="e14-init-shown e14-product-link-buynow" id="addProduct-Zy1d8ky1-linked" style="white-space:nowrap;"><a class="jive-link-product-addtolist" href="https://www.element14.com/community/view-product.jspa?fsku=2293786~1,9663762~1&amp;nsku=75R5336~1,57K3903~1&amp;COM=noscript" target="_blank"><span class="pf-widget-map pf-productlink-cart-icon"></span></a><a class="jive-link-product pf-embedded-product-link" href="https://www.element14.com/community/view-product.jspa?fsku=2293786~1,9663762~1&amp;nsku=75R5336~1,57K3903~1&amp;COM=noscript" target="_blank">Buy Kit</a></span><span class="e14-init-hidden" id="addProduct-Zy1d8ky1-unlinked">Buy Kit</span></span></th></tr></thead><tbody><tr><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">S1751-46R PCB Test Point (Surface Mount)</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">Harwin</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">1</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;"><span><span class="e14-init-shown e14-product-link-buynow" id="addProduct-qOe1PYMq-linked" style="white-space:nowrap;"><a class="jive-link-product-addtolist" href="https://www.element14.com/community/view-product.jspa?fsku=2293786~1&amp;nsku=75R5336~1&amp;COM=noscript" target="_blank"><span class="pf-widget-map pf-productlink-cart-icon"></span></a><a class="jive-link-product pf-embedded-product-link" href="https://www.element14.com/community/view-product.jspa?fsku=2293786~1&amp;nsku=75R5336~1&amp;COM=noscript" target="_blank">Buy Now</a></span><span class="e14-init-hidden" id="addProduct-qOe1PYMq-unlinked">Buy Now</span></span></td></tr><tr><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;"><span><span class="e14-init-shown" id="addProduct-ID1eBwTw-linked" style="white-space:nowrap;"><a class="jive-link-product-addtolist" href="https://www.element14.com/community/view-product.jspa?fsku=9663762&amp;nsku=57K3903&amp;COM=noscript" target="_blank"><span class="pf-widget-map pf-productlink-cart-icon"></span></a><a class="jive-link-product pf-embedded-product-link" href="https://www.element14.com/community/view-product.jspa?fsku=9663762&amp;nsku=57K3903&amp;COM=noscript" target="_blank">ICM7555IPAZ</a></span><span class="e14-init-hidden" id="addProduct-ID1eBwTw-unlinked">ICM7555IPAZ</span></span> - CMOS 555</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">Renesas</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">1</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;"><span><span class="e14-init-shown e14-product-link-buynow" id="addProduct-N6QQgdKV-linked" style="white-space:nowrap;"><a class="jive-link-product-addtolist" href="https://www.element14.com/community/view-product.jspa?fsku=9663762~1&amp;nsku=57K3903~1&amp;COM=noscript" target="_blank"><span class="pf-widget-map pf-productlink-cart-icon"></span></a><a class="jive-link-product pf-embedded-product-link" href="https://www.element14.com/community/view-product.jspa?fsku=9663762~1&amp;nsku=57K3903~1&amp;COM=noscript" target="_blank">Buy Now</a></span><span class="e14-init-hidden" id="addProduct-N6QQgdKV-unlinked">Buy Now</span></span></td></tr></tbody></table><div style="clear:both;"></div> <div style="font-size: 90%;">Tags: 555 circuit, 555 measurements, astable multivibrator measurements</div> https://community.element14.com/challenges-projects/element14-presents/workbenchwednesdays/w/documents/5189/measuring-a-555-on-an-oscilloscope---workbench-wednesdays-33/revision/4Wed, 10 Feb 2021 08:24:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:e335ef57-ba86-42d5-94f4-2f9b45f740ecMatthttps://community.element14.com/challenges-projects/element14-presents/workbenchwednesdays/w/documents/5189/measuring-a-555-on-an-oscilloscope---workbench-wednesdays-33#commentsRevision 4 posted to Documents by Matt on 2/10/2021 8:24:00 AM<br /> <p><span><a href="https://www.youtube.com/watch?v=4r7zwNKQvn0">www.youtube.com/watch</a></span></p> <p style="margin:0;">&nbsp;</p> <p style="background-color:#e9f6fc;border:1px solid #b8d7e5;margin:0;max-width:744px;padding:8px;"><span style="color:#000000;font-family:&#39;Open Sans&#39;, Arial, sans-serif;text-align:justify;">The 555 is a very popular chip, and for good reason. It is such a versatile timer. Learn about 555 measurements like how to measure the voltage divider inside the chip and what is going on with the signals in an astable multivibrator (clock) circuit. The key to the 555 circuit is connecting the threshold and trigger pins together. But, until you see the schematic and waveforms it may not be obvious why. </span></p> <p style="margin:0;padding:0px;">&nbsp;</p> <p style="margin:0;">This video started out as me just wanting to learn more about the 555. I&rsquo;ve read the datasheet, built a discrete 555 kit, and watched the TLC episode multiple times on the 555. It was not until I saw the waveforms on an oscilloscope that I finally &ldquo;got&rdquo; what was going on!</p> <p style="margin:0;padding:0px;">&nbsp;</p> <h2 id="mcetoc_1fl78jjng0"><span style="color:#3334ca;">Supplemental Content:</span></h2> <ul> <li><a class="jive-link-wiki-small" href="/challenges-projects/element14-presents/thelearningcircuit/w/documents/4615/the-learning-circuit-62-how-555-timers-work" data-e14adj="t">The Learning Circuit: 62: How 555 Timers Work</a></li> <li><a class="jive-link-wiki-small" href="/challenges-projects/element14-presents/workbenchwednesdays/w/documents/5079/workbench-wednesday-29-what-active-components-do-you-need" data-e14adj="t">Workbench Wednesday 29: What Active Components Do You Need?</a></li> <li><a class="jive-link-blog-small" href="/challenges-projects/project14/backtoanalog/b/blog/posts/555-timer-voltage-inverter" data-e14adj="t">555 Timer Voltage Inverter</a> by <span><a href="/members/fmilburn">fmilburn</a></span></li> </ul> <p style="margin:0;"><span style="color:#3334ca;font-size:20px;font-weight:bold;">Bill of Material:</span></p> <table class="jiveBorder" style="border:1px solid #C6C6C6;" border="1"> <thead> <tr> <th style="background-color:#f2f2f2;border:1px solid #C6C6C6;color:#505050;padding:6px;text-align:left;">Product Name</th> <th style="background-color:#f2f2f2;border:1px solid #C6C6C6;color:#505050;padding:6px;text-align:left;">Manufacturer</th> <th style="background-color:#f2f2f2;border:1px solid #C6C6C6;color:#505050;padding:6px;text-align:left;">Quantity</th> <th style="background-color:#f2f2f2;border:1px solid #C6C6C6;color:#505050;padding:6px;text-align:left;"><span><span class="e14-init-shown e14-product-link-buynow" style="white-space:nowrap;">Buy Now</span></span></th> <th style="background-color:#f2f2f2;border:1px solid #C6C6C6;color:#505050;padding:6px;text-align:left;"><span><span id="addProduct-Zy1d8ky1-linked" class="e14-init-shown e14-product-link-buynow" style="white-space:nowrap;"><a class="jive-link-product-addtolist" href="https://www.element14.com/community/view-product.jspa?fsku=2293786~1,9663762~1&amp;nsku=75R5336~1,57K3903~1&amp;COM=noscript" target="_blank" data-e14adj="t"><span class="pf-widget-map pf-productlink-cart-icon"></span></a><a class="jive-link-product pf-embedded-product-link" href="https://www.element14.com/community/view-product.jspa?fsku=2293786~1,9663762~1&amp;nsku=75R5336~1,57K3903~1&amp;COM=noscript" target="_blank" data-e14adj="t">Buy Kit</a></span><span id="addProduct-Zy1d8ky1-unlinked" class="e14-init-hidden">Buy Kit</span></span></th> </tr> </thead> <tbody> <tr> <td style="border:1px solid #C6C6C6;padding:6px;">S1751-46R PCB Test Point (Surface Mount)</td> <td style="border:1px solid #C6C6C6;padding:6px;">Harwin</td> <td style="border:1px solid #C6C6C6;padding:6px;">1</td> <td style="border:1px solid #C6C6C6;padding:6px;"><span><span class="e14-init-shown e14-product-link-buynow" style="white-space:nowrap;"><a id="e14-product-link-9dbc3" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=2293786&nsku=75R5336&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-link" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('9dbc3'));" data-farnell="2293786" data-newark="75R5336" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></span></td> <td style="border:1px solid #C6C6C6;padding:6px;"><span><span id="addProduct-qOe1PYMq-linked" class="e14-init-shown e14-product-link-buynow" style="white-space:nowrap;"><a class="jive-link-product-addtolist" href="https://www.element14.com/community/view-product.jspa?fsku=2293786~1&amp;nsku=75R5336~1&amp;COM=noscript" target="_blank" data-e14adj="t"><span class="pf-widget-map pf-productlink-cart-icon"></span></a><a class="jive-link-product pf-embedded-product-link" href="https://www.element14.com/community/view-product.jspa?fsku=2293786~1&amp;nsku=75R5336~1&amp;COM=noscript" target="_blank" data-e14adj="t">Buy Now</a></span><span id="addProduct-qOe1PYMq-unlinked" class="e14-init-hidden">Buy Now</span></span></td> </tr> <tr> <td style="border:1px solid #C6C6C6;padding:6px;"><span><span id="addProduct-ID1eBwTw-linked" class="e14-init-shown" style="white-space:nowrap;"><a class="jive-link-product-addtolist" href="https://www.element14.com/community/view-product.jspa?fsku=9663762&amp;nsku=57K3903&amp;COM=noscript" target="_blank" data-e14adj="t"><span class="pf-widget-map pf-productlink-cart-icon"></span></a><a class="jive-link-product pf-embedded-product-link" href="https://www.element14.com/community/view-product.jspa?fsku=9663762&amp;nsku=57K3903&amp;COM=noscript" target="_blank" data-e14adj="t">ICM7555IPAZ</a></span><span id="addProduct-ID1eBwTw-unlinked" class="e14-init-hidden">ICM7555IPAZ</span></span> - CMOS 555</td> <td style="border:1px solid #C6C6C6;padding:6px;">Renesas</td> <td style="border:1px solid #C6C6C6;padding:6px;">1</td> <td style="border:1px solid #C6C6C6;padding:6px;"><span><span class="e14-init-shown e14-product-link-buynow" style="white-space:nowrap;"><a id="e14-product-link-827fd" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="link" href="https://referral.element14.com/OrderCodeView?fsku=9663762&nsku=57K3903&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-link" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('827fd'));" data-farnell="9663762" data-newark="57K3903" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </span></span></td> <td style="border:1px solid #C6C6C6;padding:6px;"><span><span id="addProduct-N6QQgdKV-linked" class="e14-init-shown e14-product-link-buynow" style="white-space:nowrap;"><a class="jive-link-product-addtolist" href="https://www.element14.com/community/view-product.jspa?fsku=9663762~1&amp;nsku=57K3903~1&amp;COM=noscript" target="_blank" data-e14adj="t"><span class="pf-widget-map pf-productlink-cart-icon"></span></a><a class="jive-link-product pf-embedded-product-link" href="https://www.element14.com/community/view-product.jspa?fsku=9663762~1&amp;nsku=57K3903~1&amp;COM=noscript" target="_blank" data-e14adj="t">Buy Now</a></span><span id="addProduct-N6QQgdKV-unlinked" class="e14-init-hidden">Buy Now</span></span></td> </tr> </tbody> </table> <p style="margin:0;padding:0px;">&nbsp;</p> <div style="background:#ffffff;border:1px solid #dadada;margin:0;padding:14px 16px 16px 18px;vertical-align:top;"> <div style="display:inline-block;float:left;padding:0px 25px 8px 0px;"><a href="/challengesprojects/element14-presents/" data-e14adj="t"><img alt="Workbench Wednesday" src="/e14/assets/main/2021/e14pWorkbench%20Wednesdays_2021.png" width="180px" /></a></div> <div style="display:inline-block;vertical-align:top;width:70%;"></div> <div style="display:inline-block;vertical-align:top;width:70%;"></div> <div style="display:inline-block;vertical-align:top;width:70%;"><span><a class="jivecontainerTT-hover-container jive-link-community-small" href="/challengesprojects/element14-presents/" data-e14adj="t">element14 presents</a></span>&nbsp; <strong>|</strong>&nbsp; <a class="jive-link-wiki-small" href="/challenges-projects/element14-presents/vcp-program/w/documents/3704/vcp-biography-james" data-e14adj="t">About James</a>&nbsp;<strong>|</strong>&nbsp; <a class="jivecontainerTT-hover-container jive-link-community-small" style="color:#007fac;font-family:Arial, &#39;Lucida Grande&#39;, sans-serif;" href="/challengesprojects/element14-presents/workbenchwednesdays/" data-e14adj="t">Workbench Wednesdays</a></div> <div style="display:inline-block;vertical-align:top;width:70%;"> <p style="margin:5;"></p> <p style="margin:0;"></p> <p style="margin:0;"></p> <p style="margin:0;"></p> </div> </div><div style="clear:both;"></div> <div style="font-size: 90%;">Tags: 555 circuit, workbench_wednesdays, e14presents_baldengineer, 555 timer, 555 measurements, workbench, astable multivibrator measurements</div>