Memory transistor

A memory transistor is a miscellaneous quest item in Fallout 76.

Locations
It can be found near a Mr. Messenger during The Messenger quest.

Behind the scenes
Although the label refers to it as a transistor, it resembles and the designation of "6Ж4" refers to an enclosed octal pin vacuum tube. "6AC7" is a functional equivalent to 6Ж4.
 * Ж is Cyrillic or Russian script for Zhe.