Audio Precision System One Dual Domani Measuirement Systems

[Dave Plowman (News)]

In article <pPadnSTUSMSaELDSnZ2dnUVZ_vCdnZ2d@earthlink.com>,
Michael A. Terrell <mike.terrell@earthlink.net> wrote:

Oh, but *I* have. Did some work on an American Optical installation that
used these some time ago - and just assumed the design had been changed
for something better by now.

Why change it? They have a damn good safety record, and there are over
a billion in use. Just because someone outside the US dislikes them is
no reason to change. There are multiple grades, from what I linked, to
medical grade with extreme low leakage. There are commercial grade,
intended for heavy usage. Think about it. Most plugs are rarely
inserted or removed, and the standard duty is fine.

The fact there are multiple grades says much. Better to use an entirely
different connector for arduous duty. Then there is no danger of mixing
them up.

Some items are only
plugged in one time, and used till the item is worn out. From what I've
seen of European connectors, I wouldn't use one anywhere. We had to use
them in the Earth Stations we built for the European Space Agency. We
had them ship us what they wanted used, then had to fight with it to
find enough usable hardware. The outlets we used on US turnkey were
steel Wiremold outlet strips. They sent us pairs of sockets that had to
be wired and mounted inside the racks. It looked like the crap imported
from China for flea markets. No inspect for US use, and the connectors
are incompatible with the US market. Some had a tiny expanded scale 250
voltmeter that displayed 200 to 250 volts. They wondered why only
foreign tourist were buying the crap.

I'd say exactly the same of that fitting you pictured. It looks like it
would be impossible to make something cheaper or nastier.

--
*Why is it that to stop Windows 95, you have to click on "Start"?

Dave Plowman dave@davenoise.co.uk London SW
To e-mail, change noise into sound.

 

[Dave Plowman (News)]

In article <a9ydndpv9tTzPbDSnZ2dnUVZ_uadnZ2d@giganews.com>,
Arny Krueger <arnyk@cocmast.net> wrote:

The UK outlet is actually slightly less well-accepted than the US
outlet.

You could say the same about analogue TV. Doesn't make 525/60 NTSC better
than 625/50 PAL, though. ;-)

--
*The fact that no one understands you doesn't mean you're an artist

Dave Plowman dave@davenoise.co.uk London SW
To e-mail, change noise into sound.

 

[Dave Plowman (News)]

In article <9p5nfnFucrU1@mid.individual.net>,
David Looser <david.looser@btinternet.com> wrote:

This all seems as pointless as Dave's slagging-off of US sockets.

Simply that I did get involved with using them many years ago, and assumed
the design had improved by now.

You'd really need to install some and be familiar with installing UK ones
too to make a true comparison.

--
*Many hamsters only blink one eye at a time *

Dave Plowman dave@davenoise.co.uk London SW
To e-mail, change noise into sound.

 

[Ron]

On 05/02/2012 10:30, Dave Plowman (News) wrote:

In article<a9ydndpv9tTzPbDSnZ2dnUVZ_uadnZ2d@giganews.com>,
Arny Krueger<arnyk@cocmast.net> wrote:
The UK outlet is actually slightly less well-accepted than the US
outlet.

You could say the same about analogue TV. Doesn't make 525/60 NTSC better
than 625/50 PAL, though. ;-)

♫ Betcha' goin' fishing, all the time ♫

You swine, pissing myself laughing at this exchange...

Ron

 

[Rheilly Phoull]

On 1/3/2012 1:53 AM, Arny Krueger wrote:

"Phil Allison"<phil_a@tpg.com.au> wrote in message
news:9m6vbjFi0vU1@mid.individual.net...

"Arny Krueger"

I'm part of group that is readying two Audio Precision System One Dual
Domain measurement systems for market.

The units have exceptional provenance. They were owned by Stereo Review
Magazine and were the personal tools of Julian Hirsch. They still have
Hachette Publications property stickers on them.


** Has this unit got more value because of its provenance ?

Anyhow - here's a pic of one:

http://www.nessales.com/ebay/13318/Audio%20Precision%20System%20One%20Optical%20IO%20Pic%20(0).JPG


That looks very much like one of the two units I have been working with. It
is the later model with optical digital I/O. The earlier version is
coax-based and used RCA jacks.

WOW, what a great thread. We could have a record here, just as long as
we don't keep on subject. I think DB's are nonsense, what's wrong with a
massive ring and sliced taps ??

Rheilly

 

[Andy Champ]

On 04/02/2012 15:47, Dave Plowman (News) wrote:

Aluminium cable was tried here briefly many years ago - but I've never
come across it. Only used by those who put money before safety and
longevity.

We had aluminium (note UK spelling!) telephone cable until recently.
It's been replaced with copper, and it's noticeably better.

Andy

 

[Ron]

On 05/02/2012 15:31, Andy Champ wrote:

On 04/02/2012 15:47, Dave Plowman (News) wrote:
Aluminium cable was tried here briefly many years ago - but I've never
come across it. Only used by those who put money before safety and
longevity.

We had aluminium (note UK spelling!) telephone cable until recently.
It's been replaced with copper, and it's noticeably better.

Andy
Hoover use/used aluminium wire for field coils in their washing machine

motors, it was always giving trouble with fractures and poor connections
at the crimps.

Ron

 

[Arny Krueger]

"Dave Plowman (News)" <dave@davenoise.co.uk> wrote in message
news:525cb4ae19dave@davenoise.co.uk...

In article <a9ydndpv9tTzPbDSnZ2dnUVZ_uadnZ2d@giganews.com>,
Arny Krueger <arnyk@cocmast.net> wrote:
The UK outlet is actually slightly less well-accepted than the US
outlet.

You could say the same about analogue TV. Doesn't make 525/60 NTSC better
than 625/50 PAL, though. ;-)

????

Analog TV, what's that? ;-)

AFAIK, we haven't had analog TV broadcast anywhere in the US since June
2009. I know that in theory, US broadcasters have into 2015 to make the
switch, but in reality the switchover was highly pervasive on the first day
possible, not the last.

 

[Ron]

On 05/02/2012 17:54, Arny Krueger wrote:

"Dave Plowman (News)"<dave@davenoise.co.uk> wrote in message
news:525cb4ae19dave@davenoise.co.uk...
In article<a9ydndpv9tTzPbDSnZ2dnUVZ_uadnZ2d@giganews.com>,
Arny Krueger<arnyk@cocmast.net> wrote:
The UK outlet is actually slightly less well-accepted than the US
outlet.

You could say the same about analogue TV. Doesn't make 525/60 NTSC better
than 625/50 PAL, though. ;-)

????

Analog TV, what's that? ;-)

AFAIK, we haven't had analog TV broadcast anywhere in the US since June
2009. I know that in theory, US broadcasters have into 2015 to make the
switch, but in reality the switchover was highly pervasive on the first day
possible, not the last.


Surely you remember analogue TV Arny, it's when we had five channels of

rubbish, now we have 900 channels and it's still rubbish

Ron

 

[J. P. Gilliver (John)]

In message <O8qdnf1gBp3VX7PSnZ2dnUVZ_qWdnZ2d@giganews.com>, Arny Krueger
<arnyk@cocmast.net> writes:

"Dave Plowman (News)" <dave@davenoise.co.uk> wrote in message
news:525cb4ae19dave@davenoise.co.uk...
In article <a9ydndpv9tTzPbDSnZ2dnUVZ_uadnZ2d@giganews.com>,
Arny Krueger <arnyk@cocmast.net> wrote:
The UK outlet is actually slightly less well-accepted than the US
outlet.

You could say the same about analogue TV. Doesn't make 525/60 NTSC better
than 625/50 PAL, though. ;-)

(Nor worse, though it sometimes was.)

????

Analog TV, what's that? ;-)

AFAIK, we haven't had analog TV broadcast anywhere in the US since June
2009. I know that in theory, US broadcasters have into 2015 to make the
switch, but in reality the switchover was highly pervasive on the first day
possible, not the last.


Another difference between us! Here the analog was/is kept broadcast

until the day of switchover (which is happening region by region, with
the last few regions happening this 2012 year).

But you've got to remember that this is the country that kept 405-line
going for, I think, longer after 625 started than it had been going
before that. (And in Eire - who also kept it going almost as long - the
last few years of 405 were generated in a rather endearing manner.)
--
J. P. Gilliver. UMRA: 1960/<1985 MB++G.5AL-IS-P--Ch++(p)Ar@T0H+Sh0!:`)DNAf

You asking for a slap across the face with a wet pedant?-}

 

[hwh]

On 2/5/12 7:04 PM, J. P. Gilliver (John) wrote:

But you've got to remember that this is the country that kept 405-line
going for, I think, longer after 625 started than it had been going
before that.

Erm, 405 started before the war and was alone until 1964? Then it
continued for another 20 years?

gr, hwh

 

[Don Pearce]

On Sun, 05 Feb 2012 19:13:21 +0100, hwh
<iimeeltje@hotmail.com.invalid> wrote:

On 2/5/12 7:04 PM, J. P. Gilliver (John) wrote:
But you've got to remember that this is the country that kept 405-line
going for, I think, longer after 625 started than it had been going
before that.

Erm, 405 started before the war and was alone until 1964? Then it
continued for another 20 years?

When 405 lines was introduced, its title was "High Definition
Television".

So nothing has changed, eh?

d

 

[J. P. Gilliver (John)]

In message <4f2ec6c1$0$6840$e4fe514c@news2.news.xs4all.nl>, hwh
<iimeeltje@hotmail.com.invalid> writes:

On 2/5/12 7:04 PM, J. P. Gilliver (John) wrote:
But you've got to remember that this is the country that kept 405-line
going for, I think, longer after 625 started than it had been going
before that.

Erm, 405 started before the war and was alone until 1964? Then it
continued for another 20 years?

gr, hwh

OK, so I was wrong about the second period being longer than the first
(though the number of receivers near the beginning of the first period
was tiny). Don't include the war itself - it was turned off during that.
(No TV!)

No, I've looked it up: UK 1936-1985 (fully from 1937, but not during the
war: 1939-9-1, back after in fact, in 1946); Eire 1961-1982 (they had
625-line from 1962). [Hong Kong 405: 1957-1973. Other countries,
experimental only, in 1939.] All from
http://en.wikipedia.org/wiki/405_line.

I was mainly responding to the person who said that in theory USA could
still have analogue TV until (I think he said) 2015, but had switched as
soon as they could; UK, in contrast, keeps old systems going a Long
Time. Less so nowadays - most early digital terrestrial TV boxes will be
killed off by the switchover (a change to the encoding is coming in at
the same time), and those will only have been in use a comparatively low
number of years.
--
J. P. Gilliver. UMRA: 1960/<1985 MB++G.5AL-IS-P--Ch++(p)Ar@T0H+Sh0!:`)DNAf

You asking for a slap across the face with a wet pedant?-}

 

[J. P. Gilliver (John)]

In message <slrnjitic9.n30.gsm@cable.mendelson.com>, Geoffrey S.
Mendelson <gsm@mendelson.com> writes:
[]

Someone said the last two years of 405 line signals were generated by an unusal
method, I think the word they used was "endearing". What was it?

That was me. It was in Eire. For the last few years they, like the BBC,
made programmes in 625 lines, and used a digital standards converter to
produce the 405-line signals for those with old sets. Towards the end of
405 line in Eire (last 5 years I think), their standards converter broke
down, and rather than fix it they used a 405 line camera pointed at a
625 monitor (more or less).

BTW, the BBC shut down TV broadcasts in for World War II, and resumed
them at the exact point in the same broadcast after the war.

Geoff.

--
J. P. Gilliver. UMRA: 1960/<1985 MB++G.5AL-IS-P--Ch++(p)Ar@T0H+Sh0!:`)DNAf

You asking for a slap across the face with a wet pedant?-}

 

[Terry Casey]

In article <4f2ec6c1$0$6840$e4fe514c@news2.news.xs4all.nl>,
iimeeltje@hotmail.com.invalid says...

On 2/5/12 7:04 PM, J. P. Gilliver (John) wrote:
But you've got to remember that this is the country that kept 405-line
going for, I think, longer after 625 started than it had been going
before that.

Erm, 405 started before the war and was alone until 1964? Then it
continued for another 20 years?

gr, hwh

405:

1936 - 1939
1946 - 1985

625:
1964 - 2012 (BBC2 only until Nov. 69)

--

Terry

 

[Don Pearce]

On Sun, 5 Feb 2012 18:38:40 +0000, "J. P. Gilliver (John)"
<G6JPG@soft255.demon.co.uk> wrote:

In message <slrnjitic9.n30.gsm@cable.mendelson.com>, Geoffrey S.
Mendelson <gsm@mendelson.com> writes:
[]
Someone said the last two years of 405 line signals were generated by an unusal
method, I think the word they used was "endearing". What was it?

That was me. It was in Eire. For the last few years they, like the BBC,
made programmes in 625 lines, and used a digital standards converter to
produce the 405-line signals for those with old sets. Towards the end of
405 line in Eire (last 5 years I think), their standards converter broke
down, and rather than fix it they used a 405 line camera pointed at a
625 monitor (more or less).

I know all about telecine, but teletele? That's a new one.

d

 

[Clive]

In message <4f2ec6c1$0$6840$e4fe514c@news2.news.xs4all.nl>, hwh
<iimeeltje@hotmail.com.invalid> writes

Erm, 405 started before the war and was alone until 1964? Then it
continued for another 20 years?
I know colour came in, in 1967 on BBC2 but I thought that broadcasting

on BBC2 started in 1962. I know it was never on 405 lines.
--
Clive

 

[Geoffrey S. Mendelson]

hwh wrote:

On 2/5/12 7:04 PM, J. P. Gilliver (John) wrote:
But you've got to remember that this is the country that kept 405-line
going for, I think, longer after 625 started than it had been going
before that.

Erm, 405 started before the war and was alone until 1964? Then it
continued for another 20 years?

Someone said the last two years of 405 line signals were generated by an unusal
method, I think the word they used was "endearing". What was it?

BTW, the BBC shut down TV broadcasts in for World War II, and resumed
them at the exact point in the same broadcast after the war.

Geoff.


--
Geoffrey S. Mendelson, N3OWJ/4X1GM
My high blood pressure medicine reduces my midichlorian count. :-(

 

[David Looser]

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

Someone said the last two years of 405 line signals were generated by an
unusal
method, I think the word they used was "endearing". What was it?

No idea what that's supposed to mean!

BTW, the BBC shut down TV broadcasts in for World War II, and resumed
them at the exact point in the same broadcast after the war.

Not really. The last actual programme pre-war was a transmission of a Mickey

Mouse film; post war TV started with a transmission of the same film. So if
you'd been glued to your TV from Sept 1939 to June 1946 you'd have seen the
film twice, thus not "resumed at the exact point"

David.

 

[David Looser]

"J. P. Gilliver (John)" <G6JPG@soft255.demon.co.uk> wrote in message
news:ynIsUNpwysLPFwal@soft255.demon.co.uk...

In message <slrnjitic9.n30.gsm@cable.mendelson.com>, Geoffrey S. Mendelson
gsm@mendelson.com> writes:
[]
Someone said the last two years of 405 line signals were generated by an
unusal
method, I think the word they used was "endearing". What was it?

That was me. It was in Eire. For the last few years they, like the BBC,
made programmes in 625 lines, and used a digital standards converter to
produce the 405-line signals for those with old sets. Towards the end of
405 line in Eire (last 5 years I think), their standards converter broke
down, and rather than fix it they used a 405 line camera pointed at a 625
monitor (more or less).

That technique was used used by the BBC from the early 1950s until the mid
1960s to convert to and from continental standards. I've never heard it
called "endearing" before, this bizzare word must be Irish!

David.