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	<id>https://lavryengineering.com/wiki/index.php?action=history&amp;feed=atom&amp;title=1%2F4%22</id>
	<title>1/4&quot; - Revision history</title>
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	<updated>2026-05-19T07:07:31Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://lavryengineering.com/wiki/index.php?title=1/4%22&amp;diff=1322&amp;oldid=prev</id>
		<title>Brad Johnson at 23:41, 26 August 2016</title>
		<link rel="alternate" type="text/html" href="https://lavryengineering.com/wiki/index.php?title=1/4%22&amp;diff=1322&amp;oldid=prev"/>
		<updated>2016-08-26T23:41:08Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left diff-editfont-monospace&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 23:41, 26 August 2016&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l2&quot; &gt;Line 2:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 2:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;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;&quot;&gt;&lt;div&gt;The term &amp;quot;&amp;lt;nowiki&amp;gt;1/4&amp;quot;&amp;lt;/nowiki&amp;gt;&amp;quot; is used in audio to describe a 1/4&amp;quot; &amp;quot;phone&amp;quot; plug similar to a headphone plug. There are [[T.R.S.]] three-conductor versions used for [[balanced]] audio connections and [[T.S.]] two-conductor versions used for [[unbalanced]] audio connections.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;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;&quot;&gt;&lt;div&gt;The term &amp;quot;&amp;lt;nowiki&amp;gt;1/4&amp;quot;&amp;lt;/nowiki&amp;gt;&amp;quot; is used in audio to describe a 1/4&amp;quot; &amp;quot;phone&amp;quot; plug similar to a headphone plug. There are [[T.R.S.]] three-conductor versions used for [[balanced]] audio connections and [[T.S.]] two-conductor versions used for [[unbalanced]] audio connections.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;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;&quot;&gt;&lt;div&gt;==History==&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;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;&quot;&gt;&lt;div&gt;==History==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The &amp;lt;nowiki&amp;gt;1/4&amp;quot;&amp;lt;/nowiki&amp;gt; connector is similar to the T.R.S. connector originally developed for use in telephone switchboards &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;except that it has only &lt;/del&gt;two conductors.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;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;&quot;&gt;&lt;div&gt;The &amp;lt;nowiki&amp;gt;1/4&amp;quot;&amp;lt;/nowiki&amp;gt; connector is similar to the T.R.S. connector originally developed for use in telephone switchboards&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;. There are two variations; one with three conductors and one with &lt;/ins&gt;two conductors.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;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;&quot;&gt;&lt;div&gt;==Basics==&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;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;&quot;&gt;&lt;div&gt;==Basics==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;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;&quot;&gt;&lt;div&gt;The ¼” connector is commonly used for headphone outputs found in HiFi and professional audio equipment. A headphone plug typically has three conductors similar to the T.R.S. connector, but with a different wiring scheme because it carries two channels of [[unbalanced]] audio.  &lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;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;&quot;&gt;&lt;div&gt;The ¼” connector is commonly used for headphone outputs found in HiFi and professional audio equipment. A headphone plug typically has three conductors similar to the T.R.S. connector, but with a different wiring scheme because it carries two channels of [[unbalanced]] audio.  &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Brad Johnson</name></author>
	</entry>
	<entry>
		<id>https://lavryengineering.com/wiki/index.php?title=1/4%22&amp;diff=1017&amp;oldid=prev</id>
		<title>Brad Johnson: Created page with &quot;==Overview== The term &quot;&lt;nowiki&gt;1/4&quot;&lt;/nowiki&gt;&quot; is used in audio to describe a 1/4&quot; &quot;phone&quot; plug similar to a headphone plug. There are T.R.S. three-conductor versions used for...&quot;</title>
		<link rel="alternate" type="text/html" href="https://lavryengineering.com/wiki/index.php?title=1/4%22&amp;diff=1017&amp;oldid=prev"/>
		<updated>2013-03-12T23:07:06Z</updated>

		<summary type="html">&lt;p&gt;Created page with &amp;quot;==Overview== The term &amp;quot;&amp;lt;nowiki&amp;gt;1/4&amp;quot;&amp;lt;/nowiki&amp;gt;&amp;quot; is used in audio to describe a 1/4&amp;quot; &amp;quot;phone&amp;quot; plug similar to a headphone plug. There are &lt;a href=&quot;/wiki/index.php/T.R.S.&quot; title=&quot;T.R.S.&quot;&gt;T.R.S.&lt;/a&gt; three-conductor versions used for...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;==Overview==&lt;br /&gt;
The term &amp;quot;&amp;lt;nowiki&amp;gt;1/4&amp;quot;&amp;lt;/nowiki&amp;gt;&amp;quot; is used in audio to describe a 1/4&amp;quot; &amp;quot;phone&amp;quot; plug similar to a headphone plug. There are [[T.R.S.]] three-conductor versions used for [[balanced]] audio connections and [[T.S.]] two-conductor versions used for [[unbalanced]] audio connections.&lt;br /&gt;
==History==&lt;br /&gt;
The &amp;lt;nowiki&amp;gt;1/4&amp;quot;&amp;lt;/nowiki&amp;gt; connector is similar to the T.R.S. connector originally developed for use in telephone switchboards except that it has only two conductors.&lt;br /&gt;
==Basics==&lt;br /&gt;
The ¼” connector is commonly used for headphone outputs found in HiFi and professional audio equipment. A headphone plug typically has three conductors similar to the T.R.S. connector, but with a different wiring scheme because it carries two channels of [[unbalanced]] audio. &lt;br /&gt;
Please also see [[T.R.S.]] or [[T.S.]] for details on non-headphone applications of ¼” connectors. &lt;br /&gt;
===Typical Wiring Connections===&lt;br /&gt;
A ¼” plug used for headphones is wired in the following manner:&lt;br /&gt;
* The [[tip]] is connected to the Left channel signal conductor.&lt;br /&gt;
*The [[ring]] is connected to the Right channel signal conductor.&lt;br /&gt;
*The [[sleeve]] is connected to the [[signal return]] conductor for both channels, which is typically [[ground]]. &lt;br /&gt;
Please also see [[T.R.S.]] or [[T.S.]] for details of non-headphone ¼” connector wiring.&lt;br /&gt;
&lt;br /&gt;
==Lavry Products==&lt;br /&gt;
*Lavry Latency Killer [http://www.lavryengineering.com/lk1.html for more information click here]&lt;br /&gt;
*LavryBlack AD11 [http://www.lavryengineering.com/products/pro-audio/ad11.html for more information click here]&lt;br /&gt;
*LavryBlack AD10 [http://www.lavryengineering.com/products/pro-audio/ad10.html for more information click here]&lt;br /&gt;
*LavryBlack DA11 [http://www.lavryengineering.com/products/pro-audio/da11.htmlfor more information click here]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
[[Category:Terminology]]&lt;br /&gt;
[[Category:Connections]]&lt;/div&gt;</summary>
		<author><name>Brad Johnson</name></author>
	</entry>
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