Getting matching transformer from telephone

[Phil Allison]

"Floyd LIAR Davidson"


** **** the HELL OFF

you know nothing SEPTIC BLOODY IDIOT !!!





..... Phil

 

[Archimedes' Lever]

"Archimedes'= LUNATIC TROLL"


** Go DROP DEAD !!


you VILE TROLLING PIECE OF AUTISTIC SHIT

Guess I hit a nerve with the "sub-human" fact that I related about you.

"Autistic" Bwuahahahahahahahahahahahaahahahahahaahahaha!

Bwuahahahahahahahahahaha!

 

[Archimedes' Lever]

You are DimBulb and I claim my £1000.

Graham

No, I am your superior, and there is nothing that you can do about it,
amp boy.

 

[Archimedes' Lever]

Not in the civilised world.

http://www.thinkscience.co.jp/toolshed/2008/10/british-vs-american-english-spelling/

Graham

It is like this, you retarded twit.

"civil-ice" is the way your spelling has it pronounced, and we ALL know
it does not get pronounced that way.

civil-eyes is the way it is pronounced EVERYWHERE, and THAT spelling is
IZE. If your logic was not so tragically flawed, you would see that
simple premise, dipshit.

I note that you stupid fucks are not spelling citizen as "citisen".

Using your logic, you are at fault there.

Make up your fucking minds, you pompous dumbfucks. We do not use thees
and thous anymore either. Get a clue.

You still running Windows 3.11 too, you clueless ****?

 

[Archimedes' Lever]

Have you even the tiniest clue yourself ?

Graham

He has far more of a clue than a dumbfuck like you does.

You think that "Shannon" is a girl's name.

 

[Archimedes' Lever]

He does at least know what he's talking about, unlike you.

No, dumbfuck, he does not. In fact, he is even more clueless than you
are.

 

[Archimedes' Lever]

Jesus Wept !

Graham

Christ, you are even more retarded than Roy is!

That is some accomplishment!

 

[Phil Allison]

"Archimedes'= SCHIZOPHRENIC LUNATIC TROLL"


** Go DROP DEAD !!


you VILE TROLLING PIECE OF AUTISTIC SHIT






.... Phil

 

[Phil Allison]

"Archimedes'= SCHIZOPHRENIC LUNATIC TROLL"


** Go DROP DEAD !!


you VILE TROLLING PIECE OF AUTISTIC SHIT

 

[Phil Allison]

"Archimedes'= SCHIZOPHRENIC LUNATIC TROLL"


** Go DROP DEAD !!


you VILE TROLLING PIECE OF AUTISTIC SHIT

 

[Archimedes' Lever]

** Wrong context - you FUCKWIT IMBECILE

PC sound cards and small recorders are not 100 years old !!

YOU FUCKING ASININE LYING IDIOT !!!

PC sound cards are NOT phones, and I doubt seriously that you even know
how a PC sound card's inputs are configured, much less the science behind
it.

 

[Phil Allison]

"Archimedes'= SCHIZOPHRENIC LUNATIC TROLL"


** Go DROP DEAD !!


you VILE TROLLING PIECE OF AUTISTIC SHIT

 

[Archimedes' Lever]

"Floyd LIAR Davidson"


** **** the HELL OFF

you know nothing SEPTIC BLOODY IDIOT !!!





.... Phil

It would be SO nice if Australia wasn't so economically tapped out that
the telco ISPs down there would shitcan a retarded **** like you on the
first complaint.

Damned shame that they are more interested in your money than
curtailing your netwide abuse.

 

[Archimedes' Lever]

"Archimedes'= SCHIZOPHRENIC LUNATIC TROLL"


** Go DROP DEAD !!


you VILE TROLLING PIECE OF AUTISTIC SHIT

Note how the PhilTard resorts to this abuse when he has his inane
remarks refuted by someone.

Is there anyone on the net that you haven't called some lame, PhilTard
name? I doubt it. You are wrong so often that you likely cuss EVERYONE.

You might be a contender for Roy's top spot on the retard list.

 

[tony sayer]

A 10kV arc from a 2MV lightning strike *COULD* make it all the way into
the handset, and OUT of the perforations in the handset, through the
earpiece or mouthpiece, and hit the user. The microphone and the
earpiece transducer both use metal cans, making the distance to the user
a mere 1/4" through air. Not good.

This is ONE of the many reasons that isolation elements are
incorporated at VARIOUS locations in the system. One of which is at the
CABLE connection to the phone itself, which is why isolation elements can
be found at these positions. This is a standard element of device design
where human contact is present, and has nothing to do with it being in a
plastic case. It isn't your Dad's AC fed two wire drill motor with an
un-phased power cord and metal case. It is, however, in close
(electrical) proximity (potentially) with lightning events, and that is
why arresting elements have been incorporated.

Most incorporations are overkill, as it were, but I am happy that our
scientists and engineers of decades past were concerned about such
things.

Idiots today seem to think everything is low voltage and harmless.

Ummmm....

A standard UK BT NTTP socket as used for the UK POTS would have a gas
tube arrestor -across- the line. IIRC there is a centre tapped point
which might be earthed, but in most all cases won't be;-(..

So several miles of OHL and just that and an -out of service- resistor
doesn't seem like much effective protection to what nature can
deliver....

 

[tony sayer]

Which go via optical fibre or microwave link, NOT cable any more.

Graham

More fibre these days, BT seems to be taking their large scale microwave
equipment's out of service very quickly.

They do however in common with other carriers seem to be using microwave
more for last mile applications but for "trunk" applications fibre is
the main or only means of transmission...

 

[tony sayer]

Rather different to 2k I think you'll agree.



Ribbons are FAR lower. Maybe 50 ohms AFTER the transformer !

And Pin 1 on an XLR is ALWAYS the cable shield. It may also be GROUND - but
that's another story. It certainly isn't used to provide phantom power under
ANY circumstances.#

Apart from providing the -return path- for the current sent over the
balanced pair...

And the last time I came across a centre tapped transformer

 

[tony sayer]

Hello Tony and everyone, I am the OP.

I've been away for a few days and I see there's so many posts that
now I'm trying to get through them all!


MY OBJECTIVE

My aim is to take voice recordings made on various equipment and save
them to a PC. Some of the voice recordings are of telephone
conversations made onto tape. I would prefer to have fed the phone
signal direct to the PC but I get a lot of noise.

I want to preserve as much quality as possible because it will
probably be necessary for a third party to identify the person
speaking.

------

Secondly and quite separately from the above....

I didn't raise this problem in my first post. I am getting hum and
noise when I record using a purpose build connector (Retell model 156
~ see link below) to a hand-held battery-powered flash-memory
recorder even when the phone is on hook. I can't see where the hum
is coming from unless it is on the phone line because there can't be
a ground loop this time.

http://www.telephonerecorder.co.uk/recording/connectors/156.htm

I do know my landlines don't have all the hum and noise so they must
be doing something which I want for my recorder! I thought may be a
transformer to better terminate the Virgin Media phone line might
help but I am out of my depth here and line termination may be the
wrong idea altogther.

Interesting that your on VM there shouldn't be any really noticeable
noise with that device from an initial look of it. Any chance of posting
a recording anywhere this might provide an idea of what's up...

DEFINITIONS

I guess my use of the word "matching" is not a very good electrical
description. I'm not seeking to match impedances and I get the
feeling that in electrical engineering, "matching" is often shorthand
for impedence matching. So apologies for any confusion I have
caused.

I want to minimise any ground loop to reduce hum and other spuriae so
perhaps I should have said "isolating" transformer.

Retell have a model (the 157) which connects direct to a PC and I
believe it is identical to the 156 except it has the additional
transformer I am asking about.

That might be wroth a try. On the odd occasion when I've needed to
record a phone call an RS components 1:1 transformer worked very well
'tho I had to pot it down a bit and use a series cap on the input side.
Not exactly strictly tech correct but good enough for purposes..

And that was on a *VM line too....


*Just a note for those not in the UK VM is Virgin Media which is the new
operator for what was/is most of the UK cable companies.

They provide POTS services like BT do but whereas BT will provide
service over up to 7-8 km of copper from an exchange, they tend to use
roadside cabinets, fibre fed using usually Nokia equipment's, with
rarely more than a Kilometre of copper to the subs premises as they only
service urban and sub urban areas..

 

[Phil Allison]

"Archimedes'= CRIMINAL PSYCHOPATH "


** Report this FUCKING SCUMBAG to his ISP

NOW !!!!!!!!!!!!!!!!


Get the STINKING PIG fucked off usenet for ever.





...... Phil

 

[Phil Allison]

"Archimedes'= CRIMINAL PSYCHOPATH "


** Report this FUCKING SCUMBAG to his ISP

NOW !!!!!!!!!!!!!!!!


Get the STINKING PIG fucked off usenet for ever.





...... Phil