https://www.justus.pw/mediawiki/index.php?action=history&feed=atom&title=Amplifier_circuits 2026-05-25T02:50:06Z Revision history for this page on the wiki MediaWiki 1.44.3 https://www.justus.pw/mediawiki/index.php?title=Amplifier_circuits&diff=106&oldid=prev 2026-03-14T23:16:59Z

<p></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 23:16, 14 March 2026</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1">Line 1:</td> <td colspan="2" class="diff-lineno">Line 1:</td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">As I'm studying for my 3rd class Amateur radio certificate&lt;ref&gt;[https://www.nichimu.or.jp/kshiken/#:~:text=%E7%AC%AC%E4%B8%89%E7%B4%9A%E3%82%A2%E3%83%9E%E3%83%81%E3%83%A5%E3%82%A2%E7%84%A1%E7%B7%9A%E6%8A%80%E5%A3%AB 国家試験 受験案内] ''www.nichimu.org''.jp&lt;/ref&gt; in Japan&lt;ref&gt;I realize writing this resembles "Photo of X -&gt; :|, Photo of X in Japan :O"&lt;/ref&gt;, I wanted to write down some notes on amplifier circuits.</ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Amplifier types ==</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Amplifier types ==</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>=== Common emitter amplifier ===</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>=== Common emitter amplifier ===</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[File:Common emitter amplifier.png|thumb|Common emitter amplifier in the Falstad circuit simulator]]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[File:Common emitter amplifier.png|thumb|Common emitter amplifier in the Falstad circuit simulator]]</div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">In Japanese, this called エミッタ接地増幅回路&lt;ref&gt;第3級ハム国試要点マスター 2026年版発行　CQ出版社　ISBN978-4-7898-1932-9&lt;/ref&gt;.</ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Falstad circuit emulator text&lt;ref&gt;[https://www.falstad.com/circuit/ Circuit Simulator Applet] &#039;&#039;www.falstad.com/circuit&#039;&#039;&lt;/ref&gt;:&lt;pre&gt;</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Falstad circuit emulator text&lt;ref&gt;[https://www.falstad.com/circuit/ Circuit Simulator Applet] &#039;&#039;www.falstad.com/circuit&#039;&#039;&lt;/ref&gt;:&lt;pre&gt;</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>$ 1 0.000005 13.097415321081861 66 5 50 5e-11</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>$ 1 0.000005 13.097415321081861 66 5 50 5e-11</div></td></tr> <tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l31">Line 31:</td> <td colspan="2" class="diff-lineno">Line 35:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* The output voltage is 180 degrees out of phase with the input voltage.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* The output voltage is 180 degrees out of phase with the input voltage.</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* Increasing the AC frequency from 100 Hz to 1000 Hz introduces clipping on the output.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* Increasing the AC frequency from 100 Hz to 1000 Hz introduces clipping on the output.</div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">== Notes ==</ins></div></td></tr> </table>

Justus https://www.justus.pw/mediawiki/index.php?title=Amplifier_circuits&diff=105&oldid=prev 2026-03-14T23:07:47Z

<p>Created page with &quot;== Amplifier types == === Common emitter amplifier === <a href="/wiki/File:Common_emitter_amplifier.png" title="File:Common emitter amplifier.png">thumb|Common emitter amplifier in the Falstad circuit simulator</a> Falstad circuit emulator text&lt;ref&gt;[https://www.falstad.com/circuit/ Circuit Simulator Applet] &#039;&#039;www.falstad.com/circuit&#039;&#039;&lt;/ref&gt;:&lt;pre&gt; $ 1 0.000005 13.097415321081861 66 5 50 5e-11 t 208 208 288 208 0 1 -6.335290598254659 0.6267237961459291 100 default r 288 192 288 96 0 1200 r 208 208 208 96 0 20000 w 208 96 288 96...&quot;</p> <p><b>New page</b></p><div>== Amplifier types ==<br /> <br /> === Common emitter amplifier ===<br /> [[File:Common emitter amplifier.png|thumb|Common emitter amplifier in the Falstad circuit simulator]]<br /> Falstad circuit emulator text&lt;ref&gt;[https://www.falstad.com/circuit/ Circuit Simulator Applet] &#039;&#039;www.falstad.com/circuit&#039;&#039;&lt;/ref&gt;:&lt;pre&gt;<br /> $ 1 0.000005 13.097415321081861 66 5 50 5e-11<br /> t 208 208 288 208 0 1 -6.335290598254659 0.6267237961459291 100 default<br /> r 288 192 288 96 0 1200<br /> r 208 208 208 96 0 20000<br /> w 208 96 288 96 0<br /> v 96 352 96 208 16 1 100 1 0 0 0.5<br /> c 208 208 96 208 4 0.000003 1.3999061550528193 0.001 0<br /> w 96 352 208 352 0<br /> c 336 224 336 352 4 0.0000022999999999999996 1.0340239322574427 0.001 0<br /> w 336 352 416 352 0<br /> p 416 192 416 352 3 0 0 10000000<br /> R 416 96 448 96 0 0 40 12 0 0 0.5<br /> w 288 96 416 96 0<br /> 207 416 192 448 192 4 Vout<br /> g 288 352 288 384 0 0<br /> w 416 192 288 192 0<br /> w 336 352 288 352 0<br /> r 288 224 288 352 0 220<br /> w 288 224 336 224 0<br /> 207 416 352 448 352 4 0v<br /> r 208 208 208 352 0 3600<br /> w 208 352 288 352 0<br /> o 4 64 0 x281012 8.250148878587748 0.0001 0 3 0 20 0 4 3 Infinity 0 9 0 500 0<br /> &lt;/pre&gt;Observations:<br /> <br /> * The output voltage is 180 degrees out of phase with the input voltage.<br /> * Increasing the AC frequency from 100 Hz to 1000 Hz introduces clipping on the output.</div>

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