6P1P (Russian: 6П1П); 
<p>Soviet-made miniature 9-pin beam tetrode vacuum tube; 
Manufactured in former Soviet Union, 1980s; 
</p>
All the electrodes have been removed from the vacuum tube. In the center is the cathode heated by a tungsten filament wire;
<a href="//commons.wikimedia.org/wiki/User:Mister_rf" title="User:Mister rf">Mister rf</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>