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Still not clear what exactly broke. The orange glow inside the tube neck is PERFECTLY NORMAL. This is the heater that warms up the cathode. The fact that it is present shows that at least the 2 heater leads are making contact inside the socket, and the CRT is still under vacuum (you didn't break the glass seal). The locating key (at least the part we can see) looks intact. this is the plastic piece on the tube base between the pins. It serves to make sure that the socket is installed in the proper orientation. The fact that the heater is lit shows that the socket is indeed oriented correctly.
The larger diameter portion of the tube base assembly with the colored wires going into the side of it is the CRT socket. If this is what got broken, it can be replaced easily enough with one salvaged from a junked set.
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