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i've recently moved into an older updated apartment building and want to connect to the TV outlet but have a connection that i've never seen before. Can someone point me in the right direction of how this connection operates and or new connectors compatible to fix?

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  • \$\begingroup\$ why do you want to connect it? ... what's at the other end of the cable? \$\endgroup\$
    – jsotola
    Commented Nov 22, 2020 at 1:24
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    \$\begingroup\$ I'm not at all familiar with that wall plate outlet. But the \$330\:\Omega\$ resistor is suggestive. Perhaps you can clarify. Can you exclude the idea that this may be a connection to a rooftop antenna? \$\endgroup\$
    – jonk
    Commented Nov 22, 2020 at 1:25
  • \$\begingroup\$ yeah, that looks like the back of one of my 1950's tube radios: the 300 Ω "aerial" connector for the FM bands. I don't think you'll get anything that's useful to you, even if there still was the matching antenna at the other end of the cable (which potentially isn't coax, either, but a ladder line) \$\endgroup\$
    – Marcus Müller
    Commented Nov 22, 2020 at 1:43
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    \$\begingroup\$ it is not a coaxial connector ... it is a twin-lead connector ... use one of these converters to connect a 75 ohm coaxial cable ... i.ebayimg.com/images/g/8DUAAOSw~y9ZH1fU/s-l300.jpg ... cut off the spades off the spade lugs and jam the ends into the two holes ... connect a coaxial cable from the round threaded connector on the converter to your TV ... though I doubt that you will receive anything \$\endgroup\$
    – jsotola
    Commented Nov 22, 2020 at 1:46
  • \$\begingroup\$ @jsotola but OP wants to connect a modern TV to it. I don't think there's digital TV channels anywhere in the bands that these outlets were used for, 50 years ago? \$\endgroup\$
    – Marcus Müller
    Commented Nov 22, 2020 at 1:48

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that's a 300 ohm outlet for connecting ladder-line, it's best to replace it with a co-ax outlet.

it appears to also be a pass-through splitter, so if you need ther other TV outlet(s) to continure to work you'll need a splitter here too.

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