Hi all, I’m trying to run a Ethernet cable to my home office in a house built in the 60s. This connection is unlabeled and I’m not sure what it is. Can I somehow replace it with an Ethernet cable? I’m new to all of this and did some poking around in the sub but I’m not really sure what I’m looking at or what I’m in for. I don’t have any coaxial cables that I can utilize (unless they are hidden behind a wall? Any easy way to find those?). Thank you.
Old Bell System/AT&T phone wiring and any technician that worked for them would have been fired making that mess. They would never use electrical tape. They would use crimp splices that had an insulating "goo" in them. This looks like an amateur job.
The old Western Electric Princess and Trimline phones would use the black/yellow pair in the jack to be used with a "wall wart" transformer that plugged into an AC outlet to power the dial/touch tone lamps on those phones. When the later models of those phones were converted to LEDs for the dial/touch tone illumination, the black/yellow pair in the jack could be used for a two line phone that used one jack for both lines.