Audio Precision System One Dual Domani Measuirement Systems

[Terry Casey]

In article <jgmkfr$esp$3@dont-email.me>, miller@yoyRG says...

From <http://www.hywel.org.UK/bbc2launch/

QUOTE

When BBC2 launched on April 20th 1964, ...


UNQUOTE

<panto mode.

Oh no it didn't!

</panto mode>

The launch of BBC2 was PLANNED for April 20th 1964 but a fire at
Battersea Power Station blacked out large areas of west London -
including the Television Centre - shortly before BBC2 was due to start.

As a result, BBC2 opened at 1130 on April 21st 1964 and the first
programme was Play School.

Nine years earlier, the BBC had wiped all news of the start of ITV off
the front pages by killing off Grace Archer in The Archers. Of course,
there was only one ITA transmitter in 1955, so only a small proportion
of the population could see it anyway.

But BBC2 started off with only one transmitter in exactly the same way
but still managed to get the 'non-event' on every front page the
following day!

I've always wondered if somebody might have been seen furtively slipping
out of the back door of Broadcasting House that Monday afternoon before
setting off to walk down to Battersea Bridge with a box of matches in
his coat pocket ...

--

Terry

 

[Mike Tomlinson]

In article <R09UAAllSsLPFweM@soft255.demon.co.uk>, J. P. Gilliver (John)
<G6JPG@soft255.demon.co.uk> writes

(Nor worse, though it sometimes was.)

NTSC = Never Twice the Same Colour. NTSC TVs had (still have?) a "Hue"
control for the user to twiddle when skin tones started looking a bit
green.

--
(\__/)
(='.'=)
(")_(")

 

[Mike Tomlinson]

In article <Wdmdnffl5IsuA7DSnZ2dnUVZ_qmdnZ2d@giganews.com>, Arny Krueger
<arnyk@cocmast.net> writes

http://hostedmedia.reimanpub.com/TFH/Step-By-Step/display/FH01NOV_OUTLET_03.jpg

The ground wires in that picture appear to be in bare copper, borne out
by the person using a multimeter with a probe resting on the ground
wire. If so, that's pretty shoddy. What's to stop it coming into
contact with the exposed hot and neutral screws on the outlet body as
the outlet is pushed back into the box?

UK wiring regulations require earth (ground) wires to be sheathed in
green and yellow sleeving where it is exposed.

--
(\__/)
(='.'=)
(")_(")

 

[Ron]

On 06/02/2012 11:56, Mike Tomlinson wrote:

In article<Wdmdnffl5IsuA7DSnZ2dnUVZ_qmdnZ2d@giganews.com>, Arny Krueger
arnyk@cocmast.net> writes

http://hostedmedia.reimanpub.com/TFH/Step-By-Step/display/FH01NOV_OUTLET_03.jpg

The ground wires in that picture appear to be in bare copper, borne out
by the person using a multimeter with a probe resting on the ground
wire. If so, that's pretty shoddy. What's to stop it coming into
contact with the exposed hot and neutral screws on the outlet body as
the outlet is pushed back into the box?

UK wiring regulations require earth (ground) wires to be sheathed in
green and yellow sleeving where it is exposed.

Also, the screws are pretty well recessed (on decent quality sockets
anyway) It's difficult to touch them with a finger accidentally.

ron

 

[David Looser]

"hwh" <iimeeltje@hotmail.com.invalid> wrote in message
news:4f2fbb11$0$6901$e4fe514c@news2.news.xs4all.nl...

On 2/6/12 11:47 AM, Ian Jackson wrote:
The UK 405-line system was almost certainly kept going for far longer
than it really needed to be. There was probably only a handful of people
who could not receive the 625-line service. At the time, I recall that
many of us said that it would be cheaper simply to buy that last little
old lady, living in a remote valley in the middle of nowhere, a new TV
set and aerial.

Maybe it would have been better to have one 625 line network on VHF,
like most other countries used until analog closedown.
Of course going from 405 to 625 would have meant ther was no room for
two networks there.

The original plan, drawn up in the early '60s, was to re-engineer Bands 1

and 3 for 625-line operation once the 405-line service was switched off; but
it never happened. I guess that the powers that be thought that the spectrum
could be more usefully used for other purposes.

David.

 

[David Looser]

"Terry Casey" <k.type@example.invalid> wrote in message
news:MPG.2999cd28172b513298970b@news.eternal-september.org...

In article <jgmkfr$esp$3@dont-email.me>, miller@yoyRG says...


From <http://www.hywel.org.UK/bbc2launch/

QUOTE

When BBC2 launched on April 20th 1964, ...


UNQUOTE


panto mode.

Oh no it didn't!

/panto mode

OK, two can play at this game:

<panto mode>

Oh yes it did!

</panto mode>

The launch of BBC2 was PLANNED for April 20th 1964 but a fire at
Battersea Power Station blacked out large areas of west London -
including the Television Centre - shortly before BBC2 was due to start.

In fact BBC2 *did* launch on April 20th, from a news studio at Alexandra
Palace, I've seen the recording. Not suprisingly the headline news item was
the power cut!

OK so a brief news programme wasn't what the BBC had in mind for the 'Grand
Opening' of BBC2, but a programme was broadcast on BBC2 on April 20th.

As a result, BBC2 opened at 1130 on April 21st 1964 and the first
programme was Play School.

No, the first programme on BBC2 was a news bulletin, on April 20th.

David.

 

[Arny Krueger]

"Mike Tomlinson" <mike@jasper.org.uk> wrote in message
news:QOdMUJGQi7LPFwsm@jasper.org.uk...

In article <PImdnRhFWezLuLHSnZ2dnUVZ_sSdnZ2d@giganews.com>, Arny Krueger
arnyk@cocmast.net> writes

I'm not so sure about rings, but the doubled voltage looks good to me
given
that I would have enough appliances that ran on 240 volts to be
interesting.
I don't.

Think about it - your kettle would boil in half the time

I get it. However, the 2-3 minute boil times I get with our current
technology seem to work out well enough.

I can boil 12 ounces of water in about 2 minutes in my 1200 watt microwave.

I can boil almost 2 liters of water in about 3 minutes in a 1500 watt
plastic pot with a built-in heatnig element.

In both cases the starting temperature of the water is about 45 degrees (F).

When I have people over for tea I set the pot to boiling when they arrive
and then reheat it in a few dozen seconds when needed.

A colleague went to work in the USA and complained about the weedy
kettles over there that take forever to boil. I suggested he take a UK
230V kettle over with him and run it off an extension to his stove
connection (i.e. 220V). Dunno if he ever bothered.

Seems like overkill, given the alternatives.

 

[Arny Krueger]

"Peter Larsen" <digilyd@hotmail.com> wrote in message
news:4f2eedb7$0$56792$edfadb0f@dtext02.news.tele.dk...

Ron wrote:

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

What's TV?

Something that can actually be enjoyable, useful and even a bit educational,
managed well.

A capacious 2 channel DVR is a big help.

 

[Arny Krueger]

"J G Miller" <miller@yoyRG> wrote in message
news:jgmmmj$ag5$1@dont-email.me...

On Sun, 05 Feb 2012 19:37:25 +0000, David Looser wrote:

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"

And complain that all the BBC television service does is
show repeats.

BBC's service to the US over cable seems to be pretty serviceable. They have
at least one channel on our local 999-channel digital system, and they also
have a number of offerings on OTA PBS. PBS is a nationwide consortium of TV
and radio stations, mostly initially operated by large universities.

 

[Arny Krueger]

"Mike Tomlinson" <mike@jasper.org.uk> wrote in message
news:VuDN8GHq07LPFwu5@jasper.org.uk...

In article <R09UAAllSsLPFweM@soft255.demon.co.uk>, J. P. Gilliver (John)
G6JPG@soft255.demon.co.uk> writes

(Nor worse, though it sometimes was.)

NTSC = Never Twice the Same Colour. NTSC TVs had (still have?) a "Hue"
control for the user to twiddle when skin tones started looking a bit
green.

Our digital TVs still have controls with the same basic concept. Something
about adapting to room lighting, preferences. On some digital sets, the
profusion of such controls can be quite bewildering. Many are tucked away in
submenus and protected service menus.

For about the last 20 years of its life, NTSC became very stable.
Adjustments to the picture controls were very infrequent - mostly done when
the TV was set up. For the first 10 years, it was a nightmare.

 

[Arny Krueger]

"Mike Tomlinson" <mike@jasper.org.uk> wrote in message
news:YOROUeHg$7LPFwNm@jasper.org.uk...

In article <Wdmdnffl5IsuA7DSnZ2dnUVZ_qmdnZ2d@giganews.com>, Arny Krueger
arnyk@cocmast.net> writes

http://hostedmedia.reimanpub.com/TFH/Step-By-Step/display/FH01NOV_OUTLET_03.jpg

The ground wires in that picture appear to be in bare copper, borne out
by the person using a multimeter with a probe resting on the ground
wire.

True.

If so, that's pretty shoddy. What's to stop it coming into
contact with the exposed hot and neutral screws on the outlet body as
the outlet is pushed back into the box?

Care and skill.

UK wiring regulations require earth (ground) wires to be sheathed in
green and yellow sleeving where it is exposed.

Sounds good to me.

 

[Arny Krueger]

"Dave Plowman (News)" <dave@davenoise.co.uk> wrote in message
news:525d462073dave@davenoise.co.uk...

In article <LL6dneMsR58-XrLSnZ2dnUVZ7sudnZ2d@bt.com>,
Ron <ron@lunevalleyaudio.com> wrote:
Also, the screws are pretty well recessed (on decent quality sockets
anyway) It's difficult to touch them with a finger accidentally.

Yes - that was one of the things wrong with the design. The faceplate can
be removed separately - rather like grid switches in the UK. Excellent
idea for re-decorating. But having the terminals so easily touched when it
is removed just poor design.

Touching the terminals is not so easy, in actual use. There are only narrow
gaps around the sides of the outlet and the front of the terminals is maybe
1/4" - 3/8" back and blocked by plastic.

 

[Dave Liquorice]

On Mon, 6 Feb 2012 11:40:34 +0000, Mike Tomlinson wrote:

How are sockets connected on a radial circuit? Separate terminals
for
in and out?

Yes, connecting screws each side of the socket.

Completely open as well not shroded at all. Don't like that, damaged
cover plate and very easy for little (or not so little) fingers to
make contact with a live screw.

--
Cheers
Dave.

 

[Ron]

On 06/02/2012 12:59, Dave Plowman (News) wrote:

In article<LL6dneMsR58-XrLSnZ2dnUVZ7sudnZ2d@bt.com>,
Ron<ron@lunevalleyaudio.com> wrote:
Also, the screws are pretty well recessed (on decent quality sockets
anyway) It's difficult to touch them with a finger accidentally.

Yes - that was one of the things wrong with the design. The faceplate can
be removed separately - rather like grid switches in the UK. Excellent
idea for re-decorating. But having the terminals so easily touched when it
is removed just poor design.

Do you mean that the US style socket has a removable faceplate? UK ones

certainly don't, unless perhaps some metalclad industrial units.
With a gridswitch unit, you'd have to be pretty determined to touch a
live terminal with the faceplate off.

Ron

 

[Ron]

On 06/02/2012 13:18, Arny Krueger wrote:

"Mike Tomlinson"<mike@jasper.org.uk> wrote in message
news:QOdMUJGQi7LPFwsm@jasper.org.uk...
In article<PImdnRhFWezLuLHSnZ2dnUVZ_sSdnZ2d@giganews.com>, Arny Krueger
arnyk@cocmast.net> writes

I'm not so sure about rings, but the doubled voltage looks good to me
given
that I would have enough appliances that ran on 240 volts to be
interesting.
I don't.

Think about it - your kettle would boil in half the time

I get it. However, the 2-3 minute boil times I get with our current
technology seem to work out well enough.

I can boil 12 ounces of water in about 2 minutes in my 1200 watt microwave.

I can boil almost 2 liters of water in about 3 minutes in a 1500 watt
plastic pot with a built-in heatnig element.

In both cases the starting temperature of the water is about 45 degrees (F).

When I have people over for tea I set the pot to boiling when they arrive
and then reheat it in a few dozen seconds when needed.

A colleague went to work in the USA and complained about the weedy
kettles over there that take forever to boil. I suggested he take a UK
230V kettle over with him and run it off an extension to his stove
connection (i.e. 220V). Dunno if he ever bothered.

Seems like overkill, given the alternatives.


Oh good, we're going to argue about who can boil a kettle the fastest...

you couldn`t make it up!

Ron

 

[Dave Plowman (News)]

In article <ReBMQ+Fhe7LPFwtz@jasper.org.uk>,
Mike Tomlinson <mike@jasper.org.uk> wrote:

Unless you have unusually long cable runs or other special factors, it's
oversized.

Better oversized than undersized, especially if the run is long.

Then why not use 2.5mm? 4mm?

Tables and guidelines are readily available to help you choose the correct
cable for your individual requirements. But in general 1mm is just fine
for a domestic lighting circuit protected by a 6 amp breaker.

--
*I'm out of my mind, but feel free to leave a message.

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

 

[Dave Plowman (News)]

In article <LL6dneMsR58-XrLSnZ2dnUVZ7sudnZ2d@bt.com>,
Ron <ron@lunevalleyaudio.com> wrote:

Also, the screws are pretty well recessed (on decent quality sockets
anyway) It's difficult to touch them with a finger accidentally.

Yes - that was one of the things wrong with the design. The faceplate can
be removed separately - rather like grid switches in the UK. Excellent
idea for re-decorating. But having the terminals so easily touched when it
is removed just poor design.

--
*How come you never hear about gruntled employees? *

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

 

[Clive]

In message <VuDN8GHq07LPFwu5@jasper.org.uk>, Mike Tomlinson
<mike@jasper.org.uk> writes

NTSC = Never Twice the Same Colour. NTSC TVs had (still have?) a "Hue"
control for the user to twiddle when skin tones started looking a bit
green.
Correct. I still have one of the first Sony sets to enter the county

which had to use a slight variant of NTSC to get past the PAL patents,
it's fitted with a hue control which in effect rotates the quadrature
subcarrier (as in NTSC) to get the correct skin tones (the wrong colours
being caused by sub-carrier side band attenuation).
--
Clive

 

[Arny Krueger]

"Ron" <ron@lunevalleyaudio.com> wrote in message
news:Q6OdnSCFi-F6RLLSnZ2dnUVZ7rKdnZ2d@bt.com...

On 06/02/2012 13:18, Arny Krueger wrote:
"Mike Tomlinson"<mike@jasper.org.uk> wrote in message
news:QOdMUJGQi7LPFwsm@jasper.org.uk...
In article<PImdnRhFWezLuLHSnZ2dnUVZ_sSdnZ2d@giganews.com>, Arny Krueger
arnyk@cocmast.net> writes

I'm not so sure about rings, but the doubled voltage looks good to me
given
that I would have enough appliances that ran on 240 volts to be
interesting.
I don't.

Think about it - your kettle would boil in half the time

I get it. However, the 2-3 minute boil times I get with our current
technology seem to work out well enough.

I can boil 12 ounces of water in about 2 minutes in my 1200 watt
microwave.

I can boil almost 2 liters of water in about 3 minutes in a 1500 watt
plastic pot with a built-in heatnig element.

In both cases the starting temperature of the water is about 45 degrees
(F).

When I have people over for tea I set the pot to boiling when they arrive
and then reheat it in a few dozen seconds when needed.

A colleague went to work in the USA and complained about the weedy
kettles over there that take forever to boil. I suggested he take a UK
230V kettle over with him and run it off an extension to his stove
connection (i.e. 220V). Dunno if he ever bothered.

Seems like overkill, given the alternatives.


Oh good, we're going to argue about who can boil a kettle the fastest...
you couldn`t make it up!

No argument - the UK ring system seems to be vastly superior over our US 15
and 20 amp circuits when it comes to delivering more actual AC power to
appliances.

 

[Arny Krueger]

"Ron" <ron@lunevalleyaudio.com> wrote in message
news:yLGdndheUaE1RbLSnZ2dnUVZ7oCdnZ2d@bt.com...

On 06/02/2012 12:59, Dave Plowman (News) wrote:
In article<LL6dneMsR58-XrLSnZ2dnUVZ7sudnZ2d@bt.com>,
Ron<ron@lunevalleyaudio.com> wrote:
Also, the screws are pretty well recessed (on decent quality sockets
anyway) It's difficult to touch them with a finger accidentally.

Yes - that was one of the things wrong with the design. The faceplate can
be removed separately - rather like grid switches in the UK. Excellent
idea for re-decorating. But having the terminals so easily touched when
it
is removed just poor design.

Do you mean that the US style socket has a removable faceplate?

Yes. unscrew a screw or two...

Handy when you repaint the walls.

And if you want different style wall plate front piece, they have zillions
of them.

UK ones certainly don't, unless perhaps some metalclad industrial
units.
With a gridswitch unit, you'd have to be pretty determined to touch a live
terminal with the faceplate off.

Agrees with my experiences in Germany.