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-   -   transformer needed? (http://www.videokarma.org/showthread.php?t=257592)

radio nut 03-10-2013 03:05 PM

transformer needed?
 
Do I really need a matching transformer to hook a 1962 RCA New Haven up to a vcr using a coax. cable?I have using jumper wires to the ant. hook up. the tv is puuting a pic on the screen but the sound hums very quietly and the picture will not hold horiz. sync so far. I still have 5 original caps to replace, just need to pick them up at Fair Radio first

electroking 03-10-2013 03:18 PM

Do invest in a transformer. You may find it still attached at the back of a junked TV.

radio nut 03-10-2013 03:30 PM

Bought a new one on the way home earlier. Why do they need one?

ChrisW6ATV 03-12-2013 11:02 PM

For a VCR or digital tuner going to a TV, you could probably get away with just kluge-ing the coax onto the 300-ohm screw terminals. With a real antenna signal from a long piece of cable, it would make a bigger difference.

old_coot88 03-13-2013 01:02 PM

Quote:

Originally Posted by ChrisW6ATV (Post 3064079)
For a VCR or digital tuner going to a TV, you could probably get away with just kluge-ing the coax onto the 300-ohm screw terminals.

Been there, done that occasionally.
:o:o
Quote:

With a real antenna signal from a long piece of cable, it would make a bigger difference.
Yup. Gotta concur.

Reece 03-13-2013 04:50 PM

However those little transformers are cheap and available at RS, Lowe's etc. Makes a neater and more secure installation as well as satisfying impedances.

ChrisW6ATV 03-13-2013 11:43 PM

Yes, indeed. I keep plenty of spares around here, of both "genders", for hookup activities with older TVs and antennas.

Geist 03-14-2013 10:52 AM

Hi All;
I didn't know You could get them in either Gender !! I have seen only female..
THANK YOU Marty

ChrisW6ATV 03-16-2013 12:50 AM

Marty-

There are transformers with two screws for the 300 ohm connection, that push onto a female 75 ohm F connector. Those are the "opposite gender" to me.


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