Multimeter set to measure voltage.
Dennis G German, aka <a href="https://en.wikipedia.org/wiki/User:DGerman" class="extiw" title="wikipedia:User:DGerman">DGerman</a> at <a href="https://en.wikipedia.org/wiki/" class="extiw" title="wikipedia:">English Wikipedia</a>
2011-07-03
<span class="int-own-work" lang="en">Own work</span>