David Nebenzahl wrote:

On 5/20/2010 11:36 AM Jim Yanik spake thus:

"William Sommerwerck" wrote in
:

I think this is a troll, but...

To make a long story short... Almost all TVs have inputs for analog audio
and video. By that I mean "baseband" (not RF) signals, such as composite
NTSC or component 1080p. With high-quality cabling, you should be able to
run these signals to multiple sets.

I don't know if those outputs are made to drive -multiple- sets.
I believe they are only 1:1.

They still require impedance matching,too.

Just curious: what *is* the impedance of such cables? I'm guessing it's
not the 50 or 75 ohms of RF cabling.


They have to be made to drive a 75 ohm load to work with a standard
video input. If you can turn off the 75 ohm termination in all but the
last monitor, you can drive multiple monitors. I used the tuner & power
supply from a damaged VCR 20+ years ago as a secondary demodulator at
the TV station I worked at. I looped it back into a spare input on the
3M video router so the director could see what our views saw, instead of
our in hose video. That cost be $2, instead of over $3,000 for a
commercial demodulator like the one we used at our transmitter site.


--
Anyone wanting to run for any political office in the US should have to
have a DD214, and a honorable discharge.