[Heathkit] help needed

[Jim Shorney]

On Sun, 16 Dec 2007 01:50:37 -0600, Revcom wrote:

>Plain ole' cable TV splitters, cheap ones, use adapters to get to
>BNC/RCA or whatever. RadioShack as well as many sources have
>them.

I'm skeptical of this approach. I'm not saying that it doesn't work, but it
doesn't follow intuitively. The OP's wording suggests that he is looking for
a solution for composite video, not video modulated RF. What you are talking
about sounds like RF splitters.

I haven't seen resistive TV splitters since the 300-ohm twinlead days. All of
the 75-ohm splitters I've cracked open are inductive, with broadband
transformers inside to do the work. These are designed for RF from low VHF
up, and most of the energy in composite video is below about 6 MHz. I would
be concerned that the RF splitters don't have the low-frequency response to
do the job properly.


--
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