An implementation of a <a href="https://en.wikipedia.org/wiki/NOR_gate" class="extiw" title="en:NOR gate">NOR gate</a> using <a href="https://en.wikipedia.org/wiki/Resistor-transistor_logic" class="extiw" title="en:Resistor-transistor logic">Resistor-transistor logic</a>.
<a href="//commons.wikimedia.org/wiki/User:Inductiveload" title="User:Inductiveload">Inductiveload</a>
2009-01-18
<span class="int-own-work" lang="en">Own work</span>