https://community.element14.com/challenges-projects/element14-presents/thelearningcircuit/w/documents/4790/opamps-project-build-an-amplified-stereo-mic-kit----the-learning-circuit-69en-USTelligent Community 12https://community.element14.com/challenges-projects/element14-presents/thelearningcircuit/w/documents/4790/opamps-project-build-an-amplified-stereo-mic-kit----the-learning-circuit-69Sun, 24 Nov 2024 20:22:10 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:c8965aa7-71f7-4518-91f3-aa848a4f5c90cstantonhttps://community.element14.com/challenges-projects/element14-presents/thelearningcircuit/w/documents/4790/opamps-project-build-an-amplified-stereo-mic-kit----the-learning-circuit-69#commentsCurrent Revision posted to Documents by cstanton on 11/24/2024 8:22:10 PM<br /> <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="image" 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;">OpAmps Project: Build an Amplified Stereo Mic Kit</span> <p style="margin:0;"><span><a class="jivecontainerTT-hover-container jive-link-community-small" href="/challengesprojects/element14-presents/thelearningcircuit/" data-e14adj="t">The Learning Circuit</a></span> <strong>|</strong> <a class="jivecontainerTT-hover-container jive-link-community-small" href="/challengesprojects/element14-presents/" data-e14adj="t">element14 presents</a> <strong>|</strong>&nbsp; <a class="jivecontainerTT-hover-container jive-link-community-small" href="/challengesprojects/element14-presents/project-videos/" data-e14adj="t">Project Videos</a></p> </div> </div> <p style="margin:0;padding:0px;">&nbsp;</p> <p style="margin:0;"></p> <p><span><a href="https://www.youtube.com/watch?v=E1F1Q9milgo">www.youtube.com/watch</a></span></p> <p style="margin:0;"></p> <p style="margin:0;padding:0px;">&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;">In the previous lesson, Karen talked about how op amps work and the many ways they can be used. In this episode, Karen assembles the Velleman MK136, Super Stereo Ear Kit. This kit uses a NE5532 Op Amp to boost the audio input from two onboard microphones to an audio output jack. While a speaker is not included in the kit, there is a potentiometer that acts as volume control. Follow along as Karen walks you through soldering the kit together and then see it in action!</span></p> <p style="margin:0;padding:0px;">&nbsp;</p> <h2 id="mcetoc_1idfthl3r0"><span style="color:#3334ca;">Bill of Material:</span></h2> <p style="margin:0;padding:0px;">&nbsp;</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 id="addProduct-6ha0fLcc-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=NA~1,2984795~1,2344023~3&amp;nsku=74R3040~1,85AC0734~1,68Y6408~3&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=NA~1,2984795~1,2344023~3&amp;nsku=74R3040~1,85AC0734~1,68Y6408~3&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-6ha0fLcc-unlinked" class="e14-init-hidden">Buy Kit</span></span></th> </tr> </thead> <tbody> <tr> <td style="border:1px solid #C6C6C6;padding:6px;"><a href="https://www.velleman.eu/products/view/?id=347865&amp;lang=en" rel="noopener noreferrer nofollow" target="_blank" data-e14adj="t">MK136 -Hobby Project Kit, Super Stereo Ear</a>, Stereo Audio Amplifier, 2 x Microphones</td> <td style="border:1px solid #C6C6C6;padding:6px;">Velleman</td> <td style="border:1px solid #C6C6C6;padding:6px;">1</td> <td style="border:1px solid #C6C6C6;padding:6px;"><span><span id="addProduct-IkaGrFEG-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=NA~1&amp;nsku=74R3040~1&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=NA~1&amp;nsku=74R3040~1&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-IkaGrFEG-unlinked" class="e14-init-hidden">Buy Now</span></span></td> </tr> <tr> <td style="border:1px solid #C6C6C6;padding:6px;">DSOX1204G -Digital Oscilloscope, InfiniiVision 1000 X-Series, 4 Channel, 70 MHz, 2 GSPS, 1 Mpts, 5 ns</td> <td style="border:1px solid #C6C6C6;padding:6px;">Keysight</td> <td style="border:1px solid #C6C6C6;padding:6px;">1</td> <td style="border:1px solid #C6C6C6;padding:6px;"><span><span id="addProduct-l0XZnznE-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=2984795~1&amp;nsku=85AC0734~1&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=2984795~1&amp;nsku=85AC0734~1&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-l0XZnznE-unlinked" class="e14-init-hidden">Buy Now</span></span></td> </tr> <tr> <td style="border:1px solid #C6C6C6;padding:6px;">AA Batteries</td> <td style="border:1px solid #C6C6C6;padding:6px;">Pro Elec</td> <td style="border:1px solid #C6C6C6;padding:6px;">3</td> <td style="border:1px solid #C6C6C6;padding:6px;"><span><span id="addProduct-uthAGmRd-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=2344023~3&amp;nsku=68Y6408~3&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=2344023~3&amp;nsku=68Y6408~3&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-uthAGmRd-unlinked" class="e14-init-hidden">Buy Now</span></span></td> </tr> </tbody> </table> <p style="margin:0;padding:0px;">&nbsp;</p> <h2 id="mcetoc_1idfthl3r1"><span style="color:#3334ca;">Additional Parts:</span></h2> <p style="margin:0;padding:0px;">&nbsp;</p> <table class="jiveBorder" style="border:1px solid #000000;width:100%;" border="1"> <thead> <tr> <th style="background-color:#6690bc;border:1px solid #000000;color:#ffffff;padding:2px;text-align:left;" valign="middle"><strong>Product Name</strong></th> </tr> </thead> <tbody> <tr> <td style="border:1px solid #000000;padding:2px;"> <p style="margin:0;"><strong>Speaker with 3.5mm audio cable</strong></p> </td> </tr> </tbody> </table> <p style="margin:0;padding:0px;">&nbsp;</p> <p style="margin:0;"><br /><a href="https://community.element14.com/cfs-file/__key/communityserver-wikis-components-files/00-00-00-03-35/manual_5F00_mk136.pdf">community.element14.com/.../manual_5F00_mk136.pdf</a></p><div style="clear:both;"></div> <div style="font-size: 90%;">Tags: opampsch, audio, aa batteries, amplifier, e14presents_makerkaren, the learning circuit, oscilloscope, microphones, stereo</div> https://community.element14.com/challenges-projects/element14-presents/thelearningcircuit/w/documents/4790/opamps-project-build-an-amplified-stereo-mic-kit----the-learning-circuit-69/revision/2Wed, 23 Feb 2022 16:24:13 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:c8965aa7-71f7-4518-91f3-aa848a4f5c90tariq.ahmadhttps://community.element14.com/challenges-projects/element14-presents/thelearningcircuit/w/documents/4790/opamps-project-build-an-amplified-stereo-mic-kit----the-learning-circuit-69#commentsRevision 2 posted to Documents by tariq.ahmad on 2/23/2022 4:24:13 PM<br /> <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="image" 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;">OpAmps Project: Build an Amplified Stereo Mic Kit</span> <p style="margin:0;"><span><a class="jivecontainerTT-hover-container jive-link-community-small" href="/challengesprojects/element14-presents/thelearningcircuit/">The Learning Circuit</a></span> <strong>|</strong> <a class="jivecontainerTT-hover-container jive-link-community-small" href="/challengesprojects/element14-presents/">element14 presents</a> <strong>|</strong>&nbsp; <a class="jivecontainerTT-hover-container jive-link-community-small" href="/challengesprojects/element14-presents/project-videos/">Project Videos</a></p> </div> </div> <p style="margin:0;padding:0px;">&nbsp;</p> <p style="margin:0;"></p> <p><span><a href="https://www.youtube.com/watch?v=E1F1Q9milgo">www.youtube.com/watch</a></span></p> <p style="margin:0;"></p> <p style="margin:0;padding:0px;">&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;">In the previous lesson, Karen talked about how op amps work and the many ways they can be used. In this episode, Karen assembles the Velleman MK136, Super Stereo Ear Kit. This kit uses a NE5532 Op Amp to boost the audio input from two onboard microphones to an audio output jack. While a speaker is not included in the kit, there is a potentiometer that acts as volume control. Follow along as Karen walks you through soldering the kit together and then see it in action!</span></p> <p style="margin:0;padding:0px;">&nbsp;</p> <h2><span style="color:#3334ca;">Bill of Material:</span></h2> <p style="margin:0;padding:0px;">&nbsp;</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 id="addProduct-6ha0fLcc-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=NA~1,2984795~1,2344023~3&amp;nsku=74R3040~1,85AC0734~1,68Y6408~3&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=NA~1,2984795~1,2344023~3&amp;nsku=74R3040~1,85AC0734~1,68Y6408~3&amp;COM=noscript" rel="noopener noreferrer" target="_blank">Buy Kit</a></span><span id="addProduct-6ha0fLcc-unlinked" class="e14-init-hidden">Buy Kit</span></span></th> </tr> </thead> <tbody> <tr> <td style="border:1px solid #C6C6C6;padding:6px;">MK136 -Hobby Project Kit, Super Stereo Ear, Stereo Audio Amplifier, 2 x Microphones</td> <td style="border:1px solid #C6C6C6;padding:6px;">Velleman</td> <td style="border:1px solid #C6C6C6;padding:6px;">1</td> <td style="border:1px solid #C6C6C6;padding:6px;"><span><span id="addProduct-IkaGrFEG-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=NA~1&amp;nsku=74R3040~1&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=NA~1&amp;nsku=74R3040~1&amp;COM=noscript" rel="noopener noreferrer" target="_blank">Buy Now</a></span><span id="addProduct-IkaGrFEG-unlinked" class="e14-init-hidden">Buy Now</span></span></td> </tr> <tr> <td style="border:1px solid #C6C6C6;padding:6px;">DSOX1204G -Digital Oscilloscope, InfiniiVision 1000 X-Series, 4 Channel, 70 MHz, 2 GSPS, 1 Mpts, 5 ns</td> <td style="border:1px solid #C6C6C6;padding:6px;">Keysight</td> <td style="border:1px solid #C6C6C6;padding:6px;">1</td> <td style="border:1px solid #C6C6C6;padding:6px;"><span><span id="addProduct-l0XZnznE-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=2984795~1&amp;nsku=85AC0734~1&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=2984795~1&amp;nsku=85AC0734~1&amp;COM=noscript" rel="noopener noreferrer" target="_blank">Buy Now</a></span><span id="addProduct-l0XZnznE-unlinked" class="e14-init-hidden">Buy Now</span></span></td> </tr> <tr> <td style="border:1px solid #C6C6C6;padding:6px;">AA Batteries</td> <td style="border:1px solid #C6C6C6;padding:6px;">Pro Elec</td> <td style="border:1px solid #C6C6C6;padding:6px;">3</td> <td style="border:1px solid #C6C6C6;padding:6px;"><span><span id="addProduct-uthAGmRd-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=2344023~3&amp;nsku=68Y6408~3&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=2344023~3&amp;nsku=68Y6408~3&amp;COM=noscript" rel="noopener noreferrer" target="_blank">Buy Now</a></span><span id="addProduct-uthAGmRd-unlinked" class="e14-init-hidden">Buy Now</span></span></td> </tr> </tbody> </table> <p style="margin:0;padding:0px;">&nbsp;</p> <h2><span style="color:#3334ca;">Additional Parts:</span></h2> <p style="margin:0;padding:0px;">&nbsp;</p> <table class="jiveBorder" style="border:1px solid #000000;width:100%;" border="1"> <thead> <tr> <th style="background-color:#6690bc;border:1px solid #000000;color:#ffffff;padding:2px;text-align:left;" valign="middle"><strong>Product Name</strong></th> </tr> </thead> <tbody> <tr> <td style="border:1px solid #000000;padding:2px;"> <p style="margin:0;"><strong>Speaker with 3.5mm audio cable</strong></p> </td> </tr> </tbody> </table> <p style="margin:0;padding:0px;">&nbsp;</p> <p style="margin:0;"><br /><br /></p><div style="clear:both;"></div> <div style="font-size: 90%;">Tags: opampsch, audio, aa batteries, amplifier, e14presents_makerkaren, the learning circuit, oscilloscope, microphones, stereo</div> https://community.element14.com/challenges-projects/element14-presents/thelearningcircuit/w/documents/4790/opamps-project-build-an-amplified-stereo-mic-kit----the-learning-circuit-69/revision/1Wed, 20 May 2020 14:00:55 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:c8965aa7-71f7-4518-91f3-aa848a4f5c90tariq.ahmadhttps://community.element14.com/challenges-projects/element14-presents/thelearningcircuit/w/documents/4790/opamps-project-build-an-amplified-stereo-mic-kit----the-learning-circuit-69#commentsRevision 1 posted to Documents by tariq.ahmad on 5/20/2020 2:00:55 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="image" 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;">OpAmps Project: Build an Amplified Stereo Mic Kit</span><p style="margin:0;"><span><a class="jivecontainerTT-hover-container jive-link-community-small" href="/challengesprojects/element14-presents/thelearningcircuit/">The Learning Circuit</a></span> <strong>|</strong> <a class="jivecontainerTT-hover-container jive-link-community-small" href="/challengesprojects/element14-presents/">element14 presents</a> <strong>|</strong>&nbsp; <a class="jivecontainerTT-hover-container jive-link-community-small" href="/challengesprojects/element14-presents/project-videos/">Project Videos</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=E1F1Q9milgo">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;">In the previous lesson, Karen talked about how op amps work and the many ways they can be used. In this episode, Karen assembles the Velleman MK136, Super Stereo Ear Kit. This kit uses a NE5532 Op Amp to boost the audio input from two onboard microphones to an audio output jack. While a speaker is not included in the kit, there is a potentiometer that acts as volume control. Follow along as Karen walks you through soldering the kit together and then see it in action!</span></p><p style="margin:0;padding:0px;">&nbsp;</p><h2><span style="color:#3334ca;">Bill of Material:</span></h2><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-6ha0fLcc-linked" style="white-space:nowrap;"><a class="jive-link-product-addtolist" href="https://www.element14.com/community/view-product.jspa?fsku=NA~1,2984795~1,2344023~3&amp;nsku=74R3040~1,85AC0734~1,68Y6408~3&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=NA~1,2984795~1,2344023~3&amp;nsku=74R3040~1,85AC0734~1,68Y6408~3&amp;COM=noscript" target="_blank">Buy Kit</a></span><span class="e14-init-hidden" id="addProduct-6ha0fLcc-unlinked">Buy Kit</span></span></th></tr></thead><tbody><tr><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">MK136 -Hobby Project Kit, Super Stereo Ear, Stereo Audio Amplifier, 2 x Microphones</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">Velleman</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-IkaGrFEG-linked" style="white-space:nowrap;"><a class="jive-link-product-addtolist" href="https://www.element14.com/community/view-product.jspa?fsku=NA~1&amp;nsku=74R3040~1&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=NA~1&amp;nsku=74R3040~1&amp;COM=noscript" target="_blank">Buy Now</a></span><span class="e14-init-hidden" id="addProduct-IkaGrFEG-unlinked">Buy Now</span></span></td></tr><tr><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">DSOX1204G -Digital Oscilloscope, InfiniiVision 1000 X-Series, 4 Channel, 70 MHz, 2 GSPS, 1 Mpts, 5 ns</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">Keysight</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-l0XZnznE-linked" style="white-space:nowrap;"><a class="jive-link-product-addtolist" href="https://www.element14.com/community/view-product.jspa?fsku=2984795~1&amp;nsku=85AC0734~1&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=2984795~1&amp;nsku=85AC0734~1&amp;COM=noscript" target="_blank">Buy Now</a></span><span class="e14-init-hidden" id="addProduct-l0XZnznE-unlinked">Buy Now</span></span></td></tr><tr><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">AA Batteries</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">Pro Elec</td><td style="border:1px solid black;border:1px solid #C6C6C6;padding:6px;">3</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-uthAGmRd-linked" style="white-space:nowrap;"><a class="jive-link-product-addtolist" href="https://www.element14.com/community/view-product.jspa?fsku=2344023~3&amp;nsku=68Y6408~3&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=2344023~3&amp;nsku=68Y6408~3&amp;COM=noscript" target="_blank">Buy Now</a></span><span class="e14-init-hidden" id="addProduct-uthAGmRd-unlinked">Buy Now</span></span></td></tr></tbody></table><p style="margin:0;padding:0px;">&nbsp;</p><h2><span style="color:#3334ca;">Additional Parts:</span></h2><p style="margin:0;padding:0px;">&nbsp;</p><table border="1" class="jiveBorder" style="border:1px solid #000000;width:100%;"><thead><tr><th style="border:1px solid black;border:1px solid #000000;padding:2px;color:#ffffff;background-color:#6690bc;text-align:left;" valign="middle"><strong>Product Name</strong></th></tr></thead><tbody><tr><td style="border:1px solid black;border:1px solid #000000;padding:2px;"><p style="margin:0;"><strong>Speaker with 3.5mm audio cable</strong></p></td></tr></tbody></table><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;"><br /><br /></p><div style="clear:both;"></div> <div style="font-size: 90%;">Tags: audio, aa batteries, amplifier, e14presents_makerkaren, the learning circuit, oscilloscope, microphones, stereo</div> https://community.element14.com/challenges-projects/element14-presents/thelearningcircuit/w/documents/4790/opamps-project-build-an-amplified-stereo-mic-kit----the-learning-circuit-69/revision/3Wed, 25 Dec 2019 08:24:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:c8965aa7-71f7-4518-91f3-aa848a4f5c90Matthttps://community.element14.com/challenges-projects/element14-presents/thelearningcircuit/w/documents/4790/opamps-project-build-an-amplified-stereo-mic-kit----the-learning-circuit-69#commentsRevision 3 posted to Documents by Matt on 12/25/2019 8:24:00 AM<br /> <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="image" 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;">OpAmps Project: Build an Amplified Stereo Mic Kit</span> <p style="margin:0;"><span><a class="jivecontainerTT-hover-container jive-link-community-small" href="/challengesprojects/element14-presents/thelearningcircuit/" data-e14adj="t">The Learning Circuit</a></span> <strong>|</strong> <a class="jivecontainerTT-hover-container jive-link-community-small" href="/challengesprojects/element14-presents/" data-e14adj="t">element14 presents</a> <strong>|</strong>&nbsp; <a class="jivecontainerTT-hover-container jive-link-community-small" href="/challengesprojects/element14-presents/project-videos/" data-e14adj="t">Project Videos</a></p> </div> </div> <p style="margin:0;padding:0px;">&nbsp;</p> <p style="margin:0;"></p> <p><span><a href="https://www.youtube.com/watch?v=E1F1Q9milgo">www.youtube.com/watch</a></span></p> <p style="margin:0;"></p> <p style="margin:0;padding:0px;">&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;">In the previous lesson, Karen talked about how op amps work and the many ways they can be used. In this episode, Karen assembles the Velleman MK136, Super Stereo Ear Kit. This kit uses a NE5532 Op Amp to boost the audio input from two onboard microphones to an audio output jack. While a speaker is not included in the kit, there is a potentiometer that acts as volume control. Follow along as Karen walks you through soldering the kit together and then see it in action!</span></p> <p style="margin:0;padding:0px;">&nbsp;</p> <h2><span style="color:#3334ca;">Bill of Material:</span></h2> <p style="margin:0;padding:0px;">&nbsp;</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 id="addProduct-6ha0fLcc-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=NA~1,2984795~1,2344023~3&amp;nsku=74R3040~1,85AC0734~1,68Y6408~3&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=NA~1,2984795~1,2344023~3&amp;nsku=74R3040~1,85AC0734~1,68Y6408~3&amp;COM=noscript" target="_blank" data-e14adj="t">Buy Kit</a></span><span id="addProduct-6ha0fLcc-unlinked" class="e14-init-hidden">Buy Kit</span></span></th> </tr> </thead> <tbody> <tr> <td style="border:1px solid #C6C6C6;padding:6px;">MK136 -Hobby Project Kit, Super Stereo Ear, Stereo Audio Amplifier, 2 x Microphones</td> <td style="border:1px solid #C6C6C6;padding:6px;">Velleman</td> <td style="border:1px solid #C6C6C6;padding:6px;">1</td> <td style="border:1px solid #C6C6C6;padding:6px;"><span><span id="addProduct-IkaGrFEG-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=NA~1&amp;nsku=74R3040~1&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=NA~1&amp;nsku=74R3040~1&amp;COM=noscript" target="_blank" data-e14adj="t">Buy Now</a></span><span id="addProduct-IkaGrFEG-unlinked" class="e14-init-hidden">Buy Now</span></span></td> </tr> <tr> <td style="border:1px solid #C6C6C6;padding:6px;">DSOX1204G -Digital Oscilloscope, InfiniiVision 1000 X-Series, 4 Channel, 70 MHz, 2 GSPS, 1 Mpts, 5 ns</td> <td style="border:1px solid #C6C6C6;padding:6px;">Keysight</td> <td style="border:1px solid #C6C6C6;padding:6px;">1</td> <td style="border:1px solid #C6C6C6;padding:6px;"><span><span id="addProduct-l0XZnznE-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=2984795~1&amp;nsku=85AC0734~1&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=2984795~1&amp;nsku=85AC0734~1&amp;COM=noscript" target="_blank" data-e14adj="t">Buy Now</a></span><span id="addProduct-l0XZnznE-unlinked" class="e14-init-hidden">Buy Now</span></span></td> </tr> <tr> <td style="border:1px solid #C6C6C6;padding:6px;">AA Batteries</td> <td style="border:1px solid #C6C6C6;padding:6px;">Pro Elec</td> <td style="border:1px solid #C6C6C6;padding:6px;">3</td> <td style="border:1px solid #C6C6C6;padding:6px;"><span><span id="addProduct-uthAGmRd-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=2344023~3&amp;nsku=68Y6408~3&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=2344023~3&amp;nsku=68Y6408~3&amp;COM=noscript" target="_blank" data-e14adj="t">Buy Now</a></span><span id="addProduct-uthAGmRd-unlinked" class="e14-init-hidden">Buy Now</span></span></td> </tr> </tbody> </table> <p style="margin:0;padding:0px;">&nbsp;</p> <h2><span style="color:#3334ca;">Additional Parts:</span></h2> <p style="margin:0;padding:0px;">&nbsp;</p> <table class="jiveBorder" style="border:1px solid #000000;width:100%;" border="1"> <thead> <tr> <th style="background-color:#6690bc;border:1px solid #000000;color:#ffffff;padding:2px;text-align:left;" valign="middle"><strong>Product Name</strong></th> </tr> </thead> <tbody> <tr> <td style="border:1px solid #000000;padding:2px;"> <p style="margin:0;"><strong>Speaker with 3.5mm audio cable</strong></p> </td> </tr> </tbody> </table> <p style="margin:0;padding:0px;">&nbsp;</p> <p style="margin:0;"><br /><br /></p><div style="clear:both;"></div> <div style="font-size: 90%;">Tags: opampsch, audio, aa batteries, amplifier, e14presents_makerkaren, the learning circuit, oscilloscope, microphones, stereo</div>