Symbol for an air-core step down <a href="https://en.wikipedia.org/wiki/transformer" class="extiw" title="w:transformer">transformer</a>
<a href="//commons.wikimedia.org/w/index.php?title=User:Jjbeard&amp;action=edit&amp;redlink=1" class="new" title="User:Jjbeard (page does not exist)">jjbeard</a>
2006-06-02
<span class="int-own-work" lang="en">Own work</span>