serious 300ohm mod

10 Nov 2005 2:34 PM

Poly-poly man

I think this is the right newsgroup to post to, if not, direct me to
one better.

I have a little b+w Tv that I'm trying to modify. It's pretty old. I'm
trying to get coax input to it, when it has only a antenna and a little
plug marked "Ext. Ant.", which looks exactly like a headphone plug. I'm
thinking of conneting a run of 300 ohm cable to the antenna plug inside.
I'm unsure of where to go from here. It's a one-wire antenna.

poly-p man

10 Nov 2005 5:52 PM

John F. Miller

Best group(s): sci.electronics.repair and/or sci.electronics.misc.
'Repair' gets a lot of traffic - much more than this one.

--
John Miller
http://www.enosoft.net/
high performance tools for music and video

"Poly-poly man" <pyrophobic***@gmail.com> wrote in message

news:DTIcf.8525$SV1.670@trndny01...
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>I think this is the right newsgroup to post to, if not, direct me to one
>better.
>
> I have a little b+w Tv that I'm trying to modify. It's pretty old. I'm
> trying to get coax input to it, when it has only a antenna and a little
> plug marked "Ext. Ant.", which looks exactly like a headphone plug. I'm
> thinking of conneting a run of 300 ohm cable to the antenna plug inside.
> I'm unsure of where to go from here. It's a one-wire antenna.
>
> poly-p man

10 Nov 2005 9:28 PM

Dimitrios Tzortzakakis

--
Tzortzakakis Dimitrios
major in electrical engineering, freelance electrician
FH von Iraklion-Kreta, freiberuflicher Elektriker
dimtzort AT otenet DOT gr

? "Poly-poly man" <pyrophobic***@gmail.com> ?????? ??? ??????

news:DTIcf.8525$SV1.670@trndny01...

> I think this is the right newsgroup to post to, if not, direct me to
> one better.
>
> I have a little b+w Tv that I'm trying to modify. It's pretty old. I'm
> trying to get coax input to it, when it has only a antenna and a little
> plug marked "Ext. Ant.", which looks exactly like a headphone plug. I'm
> thinking of conneting a run of 300 ohm cable to the antenna plug inside.
> I'm unsure of where to go from here. It's a one-wire antenna.
>
> poly-p man
Hi,

that kind of televisions have a special adapter that plugs into the
"headphone plug" you mention and have a normal 75 ohm coaxial plug on the
other end.As this is probably lost in the meantime, try to find it in
electronic hardware stores.