http://www.davidsonfirealarms.com/wiki/index.php?title=Special:RecentChanges&feed=atom 2010-09-11T02:07:18Z Track the most recent changes to the wiki in this feed. MediaWiki 1.15.1 http://www.davidsonfirealarms.com/wiki/index.php?title=User:Joemaurice&diff=0&oldid=prev 2010-09-06T10:41:56Z

<p>New user account</p> <p><b>New page</b></p><div></div>

Joemaurice http://www.davidsonfirealarms.com/wiki/index.php?title=Electromechanical_Horns&diff=620&oldid=prev 2010-09-04T03:06:04Z

<p></p> <table style="background-color: white; color:black;"> <col class='diff-marker' /> <col class='diff-content' /> <col class='diff-marker' /> <col class='diff-content' /> <tr valign='top'> <td colspan='2' style="background-color: white; color:black;">← Older revision</td> <td colspan='2' style="background-color: white; color:black;">Revision as of 03:06, 4 September 2010</td> </tr> <tr><td colspan="2" class="diff-lineno">Line 1:</td> <td colspan="2" class="diff-lineno">Line 1:</td></tr> <tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>Electromechanical horns are the low-pitched horns. These loud horns use an electromagnet and a switching mechanism which vibrate a metal plate, producing the noise. The magnet moves a piece of metal back and fourth, alternated by a control mechanism, to make the metal plate vibrate. These vibrations are what produce the noise. If the metal plate is touching something, the volume changes. Many electromechanical horns have an adjustment screw which adjusts the volume by turning the screw. Tightening it makes it absorb more vibrations, making it softer. Loosening it makes it absorb less vibrations, making it louder.</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>Electromechanical horns are the low-pitched horns. These loud horns use an electromagnet and a switching mechanism which vibrate a metal plate, producing the noise. The magnet moves a piece of metal back and fourth, alternated by a control mechanism, to make the metal plate vibrate. These vibrations are what produce the noise. If the metal plate is touching something, the volume changes. Many electromechanical horns have an adjustment screw which adjusts the volume by turning the screw. Tightening it makes it absorb more vibrations, making it softer. Loosening it makes it absorb less vibrations, making it louder<ins class="diffchange diffchange-inline">. These horns are very similar to the ones used in most automobiles</ins>.</div></td></tr> <tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr> <tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>== Type 1 Mechanical Horns ==</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>== Type 1 Mechanical Horns ==</div></td></tr> <tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr> <tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>4040, <del class="diffchange diffchange-inline">874-N5</del>, 4050<del class="diffchange diffchange-inline">, </del>4051<del class="diffchange diffchange-inline">, basically all the horns that sound raspier</del>. &lt;br /&gt;</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">The older Federal Vibratones (Simplex </ins>4040<ins class="diffchange diffchange-inline">)</ins>, <ins class="diffchange diffchange-inline">Edwards 870 series</ins>, <ins class="diffchange diffchange-inline">and the Faraday knockoffs of the older Vibratones (Simplex </ins>4050 <ins class="diffchange diffchange-inline">and </ins>4051<ins class="diffchange diffchange-inline">)</ins>. &lt;br /&gt;</div></td></tr> <tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Here is a diagram of one that is not sounding.&lt;br /&gt;</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Here is a diagram of one that is not sounding.&lt;br /&gt;</div></td></tr> <tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[File:Type 1- Off.png]] &lt;br /&gt;</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[File:Type 1- Off.png]] &lt;br /&gt;</div></td></tr> <tr><td colspan="2" class="diff-lineno">Line 14:</td> <td colspan="2" class="diff-lineno">Line 14:</td></tr> <tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>== Type 2 Mechanical Horns ==</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>== Type 2 Mechanical Horns ==</div></td></tr> <tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr> <tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>9806, <del class="diffchange diffchange-inline">9833</del>, 9838, <del class="diffchange diffchange-inline">4030 (possibly</del>), <del class="diffchange diffchange-inline">9840</del>, <del class="diffchange diffchange-inline">9845</del>, <del class="diffchange diffchange-inline">9846</del>, <del class="diffchange diffchange-inline">34T</del>, <del class="diffchange diffchange-inline">7002T etc, basically all </del>the <del class="diffchange diffchange-inline">mechanical </del>horns <del class="diffchange diffchange-inline">with </del>a smoother sound.<del class="diffchange diffchange-inline">&lt;br /&gt;</del></div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">This type includes newer style Federal Vibratone/Simplex 2901-</ins>9806, <ins class="diffchange diffchange-inline">newer Faraday electromechanical horns (FOS 6120</ins>, <ins class="diffchange diffchange-inline">U-HNH series, Simplex 4903-9219, Simplex 2901-</ins>9838, <ins class="diffchange diffchange-inline">and Gentex GMH/GMS</ins>), <ins class="diffchange diffchange-inline">Wheelock 3X</ins>, <ins class="diffchange diffchange-inline">700X</ins>, <ins class="diffchange diffchange-inline">3XT</ins>, <ins class="diffchange diffchange-inline">700XT series</ins>, <ins class="diffchange diffchange-inline">and </ins>the <ins class="diffchange diffchange-inline">Amseco BZ series. These </ins>horns <ins class="diffchange diffchange-inline">generally have </ins>a smoother sound <ins class="diffchange diffchange-inline">than the type 1 horns</ins>.</div></td></tr> <tr><td colspan="2">&nbsp;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>&#160;</div></td></tr> <tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Here is a diagram of one that is not sounding.&lt;br /&gt;</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Here is a diagram of one that is not sounding.&lt;br /&gt;</div></td></tr> <tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[File:Type 2- Off.png]]&lt;br /&gt;</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[File:Type 2- Off.png]]&lt;br /&gt;</div></td></tr> <!-- diff generator: internal 2010-09-11 02:07:18 --> </table>

66.30.237.152