There is an embedded device in the package 14-DIP (0.300, 7.62mm). The case Tube contains it. Mounting of this component is indicated by Through Hole. Similar parts can be found using the 4006 family.
CD4006BCN Features
Mounted in Through Hole type. Based on 4006 family
CD4006BCN Applications
There are a lot of ON Semiconductor CD4006BCN Shift Registers applications.