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Ian Jackson[_2_] Ian Jackson[_2_] is offline
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Default How long can a TV extension cable be?

In message ,
Terry Casey writes
In message on Sun, 10 Apr 2011 16:06:39 +
0100
Ian Jackson wrote:

In message , Alan
writes
In message ,
Terry Casey wrote
but,
if your amp uses 'Belling' style connectors (like an ordinary aerial
plug/socket on a TV, find a local shop that sells components - or
to Maplin
- and buy a 75 ohm resistor (the old fashioned kind with wire
connections) and
a plug. (If you can't get a 75 ohm resistor, 82 ohms is acceptable.)

Or fit a F type 75 ohm termination to a F to a Belling Lee converter
http://www.admac.myzen.co.uk/F_coax/
A few quid for the lot from Ebay.

If you're not 'into' electronics, that's by far the easiest way to do
it.

I've been in the electronics industry since the 1960s and, surprisingly,
I've never come across any commercial Belling Lee 75 ohm terminations.


Teleste used IEC (belling) connectors on their CATV kit and I'm sure they also
provided a 75 ohm termination ...

In contrast, F terminations are everywhere. [I presume that that is
because they are used on professional equipment in the cable TV
industry.] I've always had to make my own B&Ls, or do as suggested
above.


A resistor and Belling plug would be much cheaper though!

I did have a bit 'contact' with the Teleste headend equipment. I
remember the short purpose-made jumpers, but I don't recall finding any
IEC/B&L terminations being used with it. While I'd be surprised if
Teleste didn't supply them (for use where required), I've never seen
them offered in any vendors' catalogues etc (although 'The Natural
Philosopher' has).
--
Ian