Jim Brown wrote:
> On Fri, 26 Feb 2010 10:08:45 -0500, Kurt Cathcart, KR2C wrote:
>> Here is a link to the spec sheet for the cable.
>> It appears to me like it's the same as the Times product and the vendor
>> tells me it is made in the same factory. I know it's all just numbers
>> on paper so I'm looking to see if anybody has any experience with it.
> It is a fairly comprehensive spec sheet. The questions are 1) Who is
> Shireen? I've never heard of them.
But Jim, you HAVE heard of them <grin> (but like the rest of us, our
memories aren't as good as google's, especially for back in 2008)
and your post http://lists.contesting.com/_towertalk/2008-03/msg00519.html
So at least we know that Shireen has been in business for 2 years,
minimum (actually longer, since Steve Maki commented that he had used
Comments back then are basically the same as today.. Anyone can publish
a spec sheet or reference a MIL-C-17 slash sheet. Anyone can make
something that resembles the description. What it comes down to is like
any other commodity: consistency of product, convenience and
availability, etc. Small companies can and do produce things better
(and worse) than big companies. Big companies tend to be more
consistent in their products (good bad or indifferent), because that's
how you get to be a big company. If you've got 1000 people making coax,
then if one gets hit by a bus on the way to work, the other 999 pretty
much can continue without any issues. If you've got 3 people making
coax, and one gets hit by a bus, you might have just "lost the recipe".
This applies to semiconductor devices too..There's a particularly low
leakage, low noise JFET available, with a JEDEC 2N number (that I can't
remember,2n4416?). But folks who care want only the ones made by some
smallish company in England, where there's one guy who "knows the
recipe". If he retires/dies/whathaveyou, I doubt anyone else will be
able to duplicate the performance.
Ditto for ultra high performance crystal oscillators. There's a few
folks at Bliley who know how to put the crystal into the holder and seal
it. They learned how back in the 60s when Transit was being developed,
and there's nobody else who can duplicate it. When Bliley gets the
order, these few (now elderly) folks get the call to come in for a few
days, fire up the torches, and do it.,
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