[usconservative]

I played around with this sort of thing, but I thought the conversion used to be from a 300 ohm twin lead antenna line to a 75 ohm coax input line

You're correct. It's a 300 ohm twin lead to a 75 ohm coaxial input. I stated it incorrectly.

[Intolerant in NJ]

Thanks - won’t have to go looking for new parts - probably have what I need in the basement....