Question for the Brits here, what do you call a Belling-Lee

[Bob Villa]

On Jul 26, 4:39 am, "Geoffrey S. Mendelson" <g...@mendelson.com>
wrote:

N_Cook wrote:
I assume RS cannot use a "trade name" for generic (Hoover for vacuum cleaner
etc) even if defunct company name

Not defunct:

http://www.belling-lee.com/

Maybe not the same company, but not defunct.

Geoff.

--
Geoffrey S. Mendelson N3OWJ/4X1GM
To help restaurants, as part of the "stimulus package", everyone must order
dessert. As part of the socialized health plan, you are forbidden to eat it.

He meant, I believe, that "Hoover" was defunct. Has anyone tried a
Google image search for "Belling-Lee connector"?

 

[Ian Jackson]

In message <1jm7f5y.11544j0xo7lzgN%adrian@poppyrecords.invalid.invalid>,
Adrian Tuddenham <adrian@poppyrecords.invalid.invalid> writes

Geoffrey S. Mendelson <gsm@mendelson.com> wrote:

What do you call a Belling-Lee connector?

Belling-Lee coax plug/socket.

I might be able to find the manufacturer's original part number for you
if I searched through the back-issues of Wireless World; but if it is
that difficult to find, I don't suppose anyone will recognise it.

The characteristic impedance of those connectors was 75 ohms. The last
batch I had from R.S. Components, about two years ago, had sub-standard
insulation and were mechanically unsound (they fell apart at about the
fifth time of use). Needless to say, they hadn't been made by Belling &
Lee.

Interestingly, Wikipedia says:

"The IEC-169-2 connector is recognised as a source of signal distortion
and has become a particular concern with digital signal reception,
specifically UHF HDTV."

I recall that my own measurements (in the 1960s) indicated that a
genuine B&L connector was actually a pretty good match at UHF TV
frequencies (well, up to 500MHz or so) - certainly not enough to give me
any concerns that the whole of the TV industry had made a bad choice of
connector.
--
Ian