Dastari Creel Posted July 21, 2017 Share Posted July 21, 2017 Most of the systems of the 70's and early 80's used a type of banana lead plug to go to an RF switch. Then you'd just connect the RF switch to the TV by screwing in the dual-lead attachments. Now, there are baluns now that allow you to convert that dual lead attachment to standard coax, but is there any way to cut out the middle man and just convert straight from the banana lead to coax? I don't need a switchbox because there's nothing connected to the coax of my TV, so this would be better for me. Any assistance would be greatly appreciated. Quote Link to comment Share on other sites More sharing options...
Osgeld Posted July 21, 2017 Share Posted July 21, 2017 https://www.amazon.com/RiteAV-Female-F-Type-Coax-Adapter/dp/B000V1O1LM Quote Link to comment Share on other sites More sharing options...
Dastari Creel Posted July 21, 2017 Author Share Posted July 21, 2017 https://www.amazon.com/RiteAV-Female-F-Type-Coax-Adapter/dp/B000V1O1LM No extra conversion is required to make the signals match? That's the easiest thing out there then. Quote Link to comment Share on other sites More sharing options...
Osgeld Posted July 21, 2017 Share Posted July 21, 2017 nope, plug n go Quote Link to comment Share on other sites More sharing options...
thecrypticodor Posted July 22, 2017 Share Posted July 22, 2017 (edited) The original switch boxes were meant for televisions of the time that mostly only had 300 ohm antenna input terminals so the switch box had a balun in it for impedance matching. Newer TV’s have a 75 ohm input so a matching transformer is not necessary. You’ll see a lot of old switch boxes that have a 300 ohm to 75 ohm F-type matching transformer attached to them for when televisions made the switch over to 75 ohm F-type RF inputs. So they were now converting 75 to 300 and than back to 75 again. Edited July 22, 2017 by thecrypticodor Quote Link to comment Share on other sites More sharing options...
7800fan Posted July 25, 2017 Share Posted July 25, 2017 The banana plus is usually called RCA plug. https://en.wikipedia.org/wiki/RCA_connector Both the RF signal from 2600 and the F-type (twist on) from antenna or cable boxes are 75 ohms while older antenna cable (flat ribbon) are 300 ohms. Quote Link to comment Share on other sites More sharing options...
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