HELP ME BRANDY!... (or other Chieftain owners)

Brandy (or anyone),
I need to know if anyone knows what fits into the sockets on the back of the speaker (looks like vac tube sockets) if anyone has a picture....or could take on that would help a lot. If they are tubes can someone tell me what tubes are needed?


thanks in advance

 

yeah... those old speakers had tubes on them, but I don't know what kind.
maybe swing by south austin music , and see if they know who still deals in tubes/repair. I remember an old shop there that sold tubes...