Re: Audio Precision System One Dual Domani Measuirement Systems

[hwh]

Yes, but don't forget the Belgian system H with 1.25MHz vsb ...

http://stjarnhimlen.se/tv/tv.html

A list of systems is one of the many facts on this page.

gr, hwh

 

[hwh]

Dutch cable tv provider Casema used a scheme like 24 28 31 35 38 42 etc.
Interference products tended to be out of the used channels.

When tv sets became better over time many more channels were used,
including most VHF channels.

gr, hwh

 

[J G Miller]

tankloads of really radioactive crap that's still there, 65 years later

Some people in the UK newsgroups may think you are just talking about
a dozen or less tankloads, nothing really significant.

It is budgetwise and timewise the World's Biggest Environmental Cleanup.

<http://www.kuow.ORG/northwestnews.php?storyID=145321419>

QUOTE

Hanford officials had estimated there were about 10 kilograms
of plutonium in the site's 56 million gallons of radioactive sludge.

UNQUOTE

<http://www.loe.ORG/shows/segments.html?programID=12-P13-00005&segmentID=4>

QUOTE

Hanford - a 580 square mile complex along the Columbia River.

...

270 billion gallons of contaminated ground water and 53 million gallons
of waste in 177 storage underground tanks.

This waste is the legacy of more than 5 decades of plutonium production making

UNQUOTE

All because of the perceived need to produce weapons of mutual annihilation.

 

[J G Miller]

QUOTE

Hanford officials had estimated there were about 10 kilograms of
plutonium in the site's 56 million gallons of radioactive sludge.

UNQUOTE

Sorry, I missed out the important update --

QUOTE

Now, that 10-kilogram estimate has risen to at least 30 kilograms
and as much as 130 kilograms of plutonium.

UNQUOTE

Do not forget that plutonium is not only highly radioactive,
it is also highly toxic.

 

[Ian Jackson]

http://stjarnhimlen.se/tv/tv.html

A list of systems is one of the many facts on this page.

That is a most excellent website!

 

[J. P. Gilliver (John)]

In message <[email protected]>, David Looser

Well it might, but in practice there don't seem to have been many problems
caused by not harmonising spectrum use with the the continent. To be honest
I think the government made the right decision, the limited VHF spectrum
available in Bands 1 & 3 would only just have been enough for one extra
625-line TV channel.

[]
? - one on band I and at least one on band III, surely? I lived in
(West) Germany in the 1960s and '70s, and I'm sure we could get at least
two channels on band III (yes, I know B and G channels are narrower, but
not that much).

Were both channels available nationwide or just in densely populated
areas?

I can't remember, I'm afraid. I was only 10 +/- at the time! ISTR
"German one" - ARD - was the one on band I, and was pickable-up where we
were (Dortmund, then Muelheim) on the proverbial wet string, and was a
painfully clear picture. I _think_ we could get more than one on band
III.

Or is German topography more amenable to providing large area coverage
with fewer transmitters?

It has as varied topography as the UK, I would say.

(I'm thinking here of the German plains that we were told for many years
provided ease of access for Soviet tanks ...)

There were indeed such plains east of Dortmund; our lot* went there a
lot for exercises. I think they were (are) fairly sparsely populated,
though, so less germane to these discussions: big agriculture area,
IIRR.

(* My dad was a civilian [language lecturer] attached to the British
army there.)

 

[J. P. Gilliver (John)]

IIRC, it was to make it easier for colour-blind people to identify.

Yes - green/red being the commonest form of colourblindness. Though
making one stripy meant anyone could get it. (A physics master - I think
it was - once told me: brown is what you'll go if you touch it, green
and yellow think buttercups on grass i. e. earth.)

Old German (flex - I don't know about house) colours were red, black,
and grey - I can't remember which was which. I have an old globe with
these colours.

There's also been another change: the cores in T&E (=romex) used to be
red and black for phase and neutral, now it's been harmonised with
Europe to brown and blue.

Three-phase wiring has been harmonised from red, blue and yellow for the

Or, a _long_ time ago, red, blue, and white. (I did my apprenticeship
with Reyrolle Switchgear, where Really old came up all the time ...)

phases and black neutral to brown, black, black and blue neutral. Yeah,
I know...

It _does_ seem odd. Not only the change keeping black but for a
different purpose, but also having _two_ of the phases the same colour.
(If that _is_ truly the case and not one of them grey, as some have
claimed in this thread.)

Though on the subject of motors turning the wrong way etc.: is it
definitely true that you always get the same phase relationship between
red, blue, and yellow? (And what happens at star-delta or delta-star
transformers: are the outputs still coloured red, blue, and yellow?)

 

[David Looser]

It _does_ seem odd. Not only the change keeping black but for a different
purpose, but also having _two_ of the phases the same colour. (If that
_is_ truly the case and not one of them grey, as some have claimed in this
thread.)

Its hardly a "claim", its there in Black & White in Appendix 7 of BS7671:
(Table 7A on page 342 of the 2008 edition)

L1 Brown
L2 Black
L3 Grey

I can't see how it could be clearer.

David.

 

[David Looser]

That's very easy to do with film. I should know. I loaded and ran
truckloads of 16 mm film on a pair of RCA TP66 projectors in the '70s.

I'm sure it is, but as we've already established that the "exact point in
the same broadcast" bit isn't true its not relevant.

The myth that the engineers simply ceased transmission half-way through a
programme and left the station like a sort of Mary Celeste has been
widespread, but it is a myth. In fact there was an orderly shut down and the
film in the machines would have been rewound and put into storage before the
staff left. It would have been 35mm film (the BBC didn't have facilities for
transmitting from 16mm film pre-war) and thus on nitrate stock. NOT putting
it into proper storage would have constituted a fire hazard and been in
contravention of fire regulations.

David.

 

[Dave Plowman (News)]

How do you confuse the bright orange medical grade with the ivory
white or brown consumer hardware?

You expect a cleaner or whatever to know the difference? If the plug fits
someone will manage to get it wrong.

 

[Geoffrey S. Mendelson]

I'll beleive that when pigs fly, and I'm not talking about 'PIGS IN
SPACE!!!' ;-)

Pink Floyd album cover:

<http://en.wikipedia.org/wiki/File:Pink_Floyd-Animals-Frontal.jpg>

Flying pig over the Battersea Power Station.

Geoff.

 

[David Looser]

We wouldn't need to do it, if you Europeans would stop starting World
Wars.

According to the history books the US entered WW2 because it was attacked by
the Japanese. It seems that Michael A. Terrell thinks that Japan is in
Europe.

David.

 

[David Looser]

They had UK outlets, and the 'voltmeter was about 1/2" * 3/4" like the
tiny VU meters that were popular 30 years ago in battery powered tape
recorders.

Now that I *would* like to see a photo of, because I cannot imagine what
they look like from that description. Wherabouts on the socket faceplate is
the meter fitted? You say they have UK outlets, so why are they not
available here? Why would the Chinese make UK sockets and only sell them in
Florida? it makes no sense.

I'm also still puzzled by the claim that "tourists" are buying socket
outlets in flea markets in the US to bring home with them. Socket outlets
are simply far too cheap here to make it worth the bother and expense of
purchasing with foreign currency and then having to pack in one's
weight-limited luggage.

"Look what I've brought you as a souvenir of my holiday in Florida, its a
cheaply made Chinese copy of a BS1363 outlet",

I can't see it somehow!

David.

 

[Mike Tomlinson]

According to the history books the US entered WW2 because it was attacked by
the Japanese. It seems that Michael A. Terrell thinks that Japan is in
Europe.

Wouldn't surprise me, seeing the average American's knowledge of
geography. A very insular country.

Also, what about the current sabre-rattling over Iraq? There's some
right-wing American pols very keen on another war in the Middle East.

 

[Terry Casey]

I'm also still puzzled by the claim that "tourists" are buying socket
outlets in flea markets in the US to bring home with them. Socket outlets
are simply far too cheap here to make it worth the bother and expense of
purchasing with foreign currency and then having to pack in one's
weight-limited luggage.

I would agree with that but then, 'tourists' are a peculiar breed! If
they've never looked further than the local High Street or shed they
might expect to pay around £5 (or more)

http://www.diy.com/nav/fix/electrical/switches-sockets/white-switches-
sockets/mk_white_range/MK-Double-Socket-White-13A-9289618

or http://tinyurl.com/7fkucwo

rather than a little over a pound:

http://www.toolstation.com/shop/Electrical/White+Wiring+Accessories/Cont
ractors+Twin+Switched+Socket+5+Pack+Single+Pole/d190/sd2633/p33287

or http://tinyurl.com/65bp6m7

although the price in dollars - $1.85 each - looks much higher.

How cheap do they need to be to persuade 'tourists' to buy them ...?

"Look what I've brought you as a souvenir of my holiday in Florida, its a
cheaply made Chinese copy of a BS1363 outlet",

Of course it is quite likely that many that are sold in the UK also
originate in China ...!

 

[Geoffrey S. Mendelson]

According to the history books the US entered WW2 because it was attacked by
the Japanese. It seems that Michael A. Terrell thinks that Japan is in
Europe.

The US was already active in the war, but not officially. US volunter pilots
were flying missions against both Japan and Germany. THe US was providing
equipment and supplies on a "lend lease" program that allowed them to do it
for free, without violating the official neutrality polices.

US ships were acting as "human shields" to shipping convoys in hope that
a U-Boat would miss their target and hit one, allowing the US to enter into
the war.

Bear in mind that although Roosevelt was pro-war, a lot of people in the US
supported Hitler or wanted to remain neutral. He was just waiting for
an excuse to enter the war.

It was just a matter of time, and a fortunate one. If Japan had not attacked
on Dec 7, 1941 and the US did not enter the war until 1943 or 1944, it would
not of gone the way it did.

Looking back in hindsight, it would have been very likely that if Europe was
not invaded in 1994, by 1946 the Luftwaffe would of had a jet engine
bomber that was undetectable until 20 miles of the coast, able to
fly to New York and an atomic bomb to drop from it.

There was a Discovery Channel show where they built a mock up of the design,
you can find it on the internet.

But you are right, the history books, as least as everyone remembers them
says that the US entered the war because the Japanese attacked.

Geoff.

 

[Geoffrey S. Mendelson]

Looking back in hindsight, it would have been very likely that if Europe was
not invaded in 1994, by 1946 the Luftwaffe would of had a jet engine
bomber that was undetectable until 20 miles of the coast, able to
fly to New York and an atomic bomb to drop from it.

Serves me right for not having my morning coffee BEFORE I type anything.

It should say 1944 not 1994.

Geoff.

 

[Mike Tomlinson]

No, the phases are *NOT* brown, black & black, they are brown, black and
grey - with blue as neutral.

I refer you to the photo I posted a link to elsewhere.

 

[Terry Casey]

Old German (flex - I don't know about house) colours were red, black,
and grey - I can't remember which was which.

Well, you had a better reason for remembering than most! The important
one was the red one!

See here ...

http://www.vintage-radio.net/forum/showpost.php?p=387010&postcount=1

 

[Terry Casey]

Looking back in hindsight, it would have been very likely that if Europe was
not invaded in 1994, by 1946 the Luftwaffe would of had a jet engine
bomber that was undetectable until 20 miles of the coast, able to
fly to New York and an atomic bomb to drop from it.

Not a bomber - it would have been the A10 rocket.

The A10 was a prosed development of the A4 rocket that was the basis
for the V2 bombs that fell on London (as opposed to the jet engined V1
flying bomb known colloquially as the 'doodlebug' - I think the US term
is buzz-bomb).

To bring this back 'on course' - at least, for uk.tech.broadcast readers
- the A10 rocket is mentioned in this historic article:

http://lakdiva.org/clarke/1945ww/1945ww_oct_305-308.html