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 Post subject: hens teeth, impossible to find. 300 ohm connects-difficult
PostPosted: Feb Sun 10, 2019 11:04 pm 
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Joined: Jan Thu 29, 2009 9:10 pm
Posts: 605
Location: central wisconsin, 54449
Hi to everyone. I am trying to find some old 300 ohm twinlead wall mount sockets and plugs.
I have looked on the net, put a ad here, but to no avail. these were very popular in the 50's, 60's
for tv cabling or for fm radio wiring. If anyone could offer any suggestion, I would appreciate it
I am looking for 3 units. I am running shielded twin lead for fm tuner hook up


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 Post subject: Re: hens teeth, impossible to find. 300 ohm connects-difficu
PostPosted: Feb Sun 10, 2019 11:08 pm 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 30517
Location: SoCal, 91387
RG56 or 59 coax would give great shielding, and finding connectors would be easy. Why not just use that instead? It could be terminated by a 300 ohm balun on each end.

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 Post subject: Re: hens teeth, impossible to find. 300 ohm connects-difficu
PostPosted: Feb Mon 11, 2019 1:24 am 
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Lemmme look tomorrow , I may have the male plugs.

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Tom


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 Post subject: Re: hens teeth, impossible to find. 300 ohm connects-difficu
PostPosted: Feb Mon 11, 2019 2:42 am 
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Joined: Jan Thu 29, 2009 9:10 pm
Posts: 605
Location: central wisconsin, 54449
Thanks, Tom.


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 Post subject: Re: hens teeth, impossible to find. 300 ohm connects-difficu
PostPosted: Feb Mon 11, 2019 3:17 am 
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Joined: Jan Thu 01, 1970 1:00 am
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Location: S. Dartmouth MA 02748-1225 USA
Both Mosley and Winegard made them, Radio-Shack, maybe. Mosley plug looks a lot like the HC6/U to FT-243 crystal adapters except set screws are there to lock in the twin lead wires. The Winegard plug was at 90 deg, to put cable flat with the wall...

I installed this stuff in my home in '77. Had problems with ghosting and FM reflections as someone walked around the house. I was using two 4-way broadband amps to deliver individual signals one lead each to each room in the home. Some rooms had two drops. I think that was part of the problem, the twin lead was re-radiating the signals...

It sucked... When cable came in '81, I pulled in new 75 coax and changed out all the plates, tossed the mess into a box in the attic.

If you can't come up with what you need I will fish this crap out of the attic, I have to reduce the attic inventory the joists are groaning every-time the wind blows... :roll:

Chas

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