Amperex <a rel="nofollow" class="external text" href="http://www.mif.pg.gda.pl/homepages/frank/sheets/035/0/0A2.pdf">OA2</a> Gas-filled, glow-discharge voltage regulator tube
<a href="//commons.wikimedia.org/wiki/User:Olli_Niemitalo" title="User:Olli Niemitalo">Olli Niemitalo</a>
2012-11-14 23:58:43
<span class="int-own-work" lang="en">Own work</span>