50 Ohm to 75/300 ohm balun?

[benmmaddog]

wondering if there is such a thing as a 50 ohm to 75 ohm or 50 ohm to 300 balun?
I have a D3000N antenna , which has an Impedance of 50 ohm
have rtl-sdr v3 and v4 which has an Impedance of 50 ohm
but I would like to run it to my stereo for FM , but its a old 1969 Zenith and only has 300 ohm inputs , even though it only has a FM and Ground connection (saying 300 ohm as the service manual state a dummy antenna of 300 ohms during alignment )
Not going to be transmitting on this antenna
my rtl-sdr scanner (using sdrtrunk) I listen to 155 Mhz and 773-774 Mhz
or just using a 75ohm to 300 ohm transformer be good enough for FM?
and how best to split the line ?

 

[mmckenna]

Yeah, there's a ton of them.

Just go on Amazon and search on 75Ω ti 300Ω matching transformer. These things were as common as hens teeth back in the last century and every TV antenna, video game, TV used them. You can still find them cheap on line, or free just about at any junk show, flea market or ham fest. I've thrown out tons of them.

 

[EAFrizzle]

I wish 300 ohm twin-lead was still at every store for pennies per foot...

 

[CoffeeBrewerGuy]

I wish 300 ohm twin-lead was still at every store for pennies per foot...

You just KNOW there's got a be a Government warehouse somewhere with pallets upon pallets full of the stuff....I regularly browse Goodwill and thrift stores hoping to find an odd lot of it somewhere, and occasionally get lucky.