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Old Fart at Play January 19th 04 09:40 PM

Best buy Toslink?
 
Ian Molton wrote:


I must try the strimmer cable one though, sounds like fun ;-)



The yellow strimmer cord doesn't work. Too opaque.
The first inch glows nicely though.

--
Roger.




Laurence Payne January 19th 04 10:49 PM

Best buy Toslink?
 
On Mon, 19 Jan 2004 22:40:55 +0000, Old Fart at Play
wrote:


The yellow strimmer cord doesn't work. Too opaque.
The first inch glows nicely though.


What about the green?

Ian Molton January 20th 04 12:21 AM

Best buy Toslink?
 
On Mon, 19 Jan 2004 21:37:03 +0000
Laurence Payne wrote:

Of course, if you used a pipe, it could be special oxygen-free air!
(Only £200 a tin, call for details)


requires a seal greased with ophidious grease on each end to keep the
anti-oxygen particles in ;-)


You took the words out of my very mouth :-)
Shall we say £450 the pair? No, let's make it £500. It'll sound
even better then. If you want the version even your wife can hear,
it's a round £1000. Plus VAT.


And obviously the shorter the better - for ideal conditions a straight section of our non-blockage light pipe should connect two devices back to back.

Preferably you should tilt them so the light can flow downhill slightly to prevent flowback from causing excess jitter and internal reflection that could burn out the transmitter LED.

for an extra 200,000 we'll sell you a ruby laser (red LED in moulded plastic) transmitter for 'extra treble', or a blue version for 'extra bass' (thanks to its higher bandwidth due to the smaller wavelength of blue light).

Our source of blue ruby lasers remains a top secret.

--
Spyros lair: http://www.mnementh.co.uk/ |||| Maintainer: arm26 linux

Do not meddle in the affairs of Dragons, for you are tasty and good with ketchup.

Ian Molton January 20th 04 12:21 AM

Best buy Toslink?
 
On Mon, 19 Jan 2004 23:49:28 +0000
Laurence Payne wrote:

The yellow strimmer cord doesn't work. Too opaque.
The first inch glows nicely though.


What about the green?


how about the pink one?

--
Spyros lair: http://www.mnementh.co.uk/ |||| Maintainer: arm26 linux

Do not meddle in the affairs of Dragons, for you are tasty and good with ketchup.

Laurence Payne January 20th 04 01:07 AM

Best buy Toslink?
 
On Tue, 20 Jan 2004 01:21:48 +0000, Ian Molton wrote:

The yellow strimmer cord doesn't work. Too opaque.
The first inch glows nicely though.


What about the green?


how about the pink one?


You can get PINK strimmer cord? Bona!

Laurence Payne January 20th 04 02:46 AM

Best buy Toslink?
 
On Tue, 20 Jan 2004 02:36:35 +0000, Kurt Hamster
wrote:


You can get PINK strimmer cord? Bona!


Ah, but where can we get a vada at it?


Troll on over to my lattie? If your lallies are up to it. If you're
not an omipalone, we could just have some palare!

Stewart Pinkerton January 20th 04 07:01 AM

Best buy Toslink?
 
On Mon, 19 Jan 2004 19:02:24 +0000, Laurence Payne
wrote:

On Mon, 19 Jan 2004 08:18:39 +0000, Ian Molton wrote:

If I remember my GCSE physics correctly you get internal reflection when the refraction index of the inner material differs by enough from the outer matrial.


True. Did you follow my link? Professional users of fibre optics
find it advantageous to use a core of one index, a coating of another.

That fact comprehensively trumps any opinions you or I may hold ;-)


However, the fact that TOSlinks don't use any such techniques (and
don't need to at these low frequencies) comprehensively trumps any
irrelevance from pro-grade fibre optics.
--

Stewart Pinkerton | Music is Art - Audio is Engineering

Ian Molton January 20th 04 08:40 AM

Best buy Toslink?
 
On Tue, 20 Jan 2004 08:01:46 +0000 (UTC)
(Stewart Pinkerton) wrote:

However, the fact that TOSlinks don't use any such techniques (and
don't need to at these low frequencies)


'scuse me... An optic fibre that doesnt have internal reflections would
be fairly useless.

using a different coating is merely a way of creating internal
reflections as it is all about the difference in refractive index.

once you go for the really high frequencies, yes, you want mono-mode and
stuff but thats more the idea of sending as few as possible 'light rays'
down the wire as possible, to minimise 'spread' of the signal over long
runs.

--
Spyros lair:
http://www.mnementh.co.uk/ |||| Maintainer: arm26 linux

Do not meddle in the affairs of Dragons, for you are tasty and good with
ketchup.

Stewart Pinkerton January 20th 04 05:03 PM

Best buy Toslink?
 
On Tue, 20 Jan 2004 09:40:49 +0000, Ian Molton wrote:

On Tue, 20 Jan 2004 08:01:46 +0000 (UTC)
(Stewart Pinkerton) wrote:

However, the fact that TOSlinks don't use any such techniques (and
don't need to at these low frequencies)


'scuse me... An optic fibre that doesnt have internal reflections would
be fairly useless.


Who is disagreeing?

using a different coating is merely a way of creating internal
reflections as it is all about the difference in refractive index.


And it's total overkill for TOSlink, which is a fundamentally crappy
system.

once you go for the really high frequencies, yes, you want mono-mode and
stuff but thats more the idea of sending as few as possible 'light rays'
down the wire as possible, to minimise 'spread' of the signal over long
runs.


Quite so, and as noted, unnecessary with TOSlink.
--

Stewart Pinkerton | Music is Art - Audio is Engineering

Chris Morriss January 23rd 04 08:15 PM

Best buy Toslink?
 
In message , Laurence Payne
writes
On Tue, 20 Jan 2004 02:36:35 +0000, Kurt Hamster
wrote:


You can get PINK strimmer cord? Bona!


Ah, but where can we get a vada at it?


Troll on over to my lattie? If your lallies are up to it. If you're
not an omipalone, we could just have some palare!


Gypsy cant or just some thieves argot?
--
Chris Morriss


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