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<a accesskey="3" href="page.php?w=thyratron&amp;p=2">3.Next</a>
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<p><a href="page.php?w=Image%3Athyratronsmall.jpg">thumb</a>A <b>thyratron</b> is a type of <a href="page.php?w=gas-filled_tube">gas-filled tube</a> used as a high-power electrical <a href="page.php?w=switch">switch</a> and controlled <a href="page.php?w=rectifier">rectifier</a>. Thyratrons can handle much greater currents than similar hard-vacuum tubes. Electron multiplication occurs when the gas becomes ionized, producing a phenomenon known as a <a href="page.php?w=Townsend_discharge">Townsend discharge</a>. Gases used include <a href="page.php?w=Mercury_%28element%29">mercury</a></p><p>
<a accesskey="3" href="page.php?w=thyratron&amp;p=2">3.Next</a>
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