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Old 14th May 2003, 05:24 PM   #1
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Default Twisted Pair

I am looking for 78R and 100R twisted pairs sold in smaller lengths than 100m (say 20m) in the UK or Europe. Anyone know a source? Ideally solid core and high quality dielectric.

Intended use: digital connections.
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Old 14th May 2003, 06:14 PM   #2
dhaen is offline dhaen  Europe
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I've not a clue where to get those.
But, can't you go with 110 ohm? There's a lot of that around, as it's used for studio equipment interconnects to AES / EBU standards.
In fact I have a drum beside me, and could be persuaded....
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Old 14th May 2003, 06:46 PM   #3
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[QUOTE]Originally posted by dhaen
[B]I've not a clue where to get those.
But, can't you go with 110 ohm? There's a lot of that around, as it's used for studio equipment interconnects to AES / EBU standards.
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Most distributors (RS and Farnell) sell 78 and 100R, but only in 100 - 300m lengths! I don't need THAT much.
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Old 14th May 2003, 06:50 PM   #4
weissi is offline weissi  Europe
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diy!!!
100 windings per meter gives you 110Ohm, so a little less andyou have 100OHM, better than nothing I would say....
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Old 15th May 2003, 10:34 AM   #5
Peter K is offline Peter K  Netherlands
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fmak,

I am not sure if it is CAT5 datacable (4 pairs of twistet pair) that you are looking for. If so I suggest to go to the local computer shop and buy a patch cable of the needed lenght and remove the connectors.

Peter
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Old 15th May 2003, 01:07 PM   #6
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[QUOTE]Originally posted by Peter K
[B]fmak,

I am not sure if it is CAT5 datacable (4 pairs of twistet pair) that you are looking for. If so I suggest to go to the local computer shop and buy a patch cable of the needed lenght and remove the connectors.

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You can get twisted pairs with different impedance characteisrtics. I want to match 78R twisted pair to 75R spdif connections, and 100R to AES/EBU. AES/EBU cables are not generally available in solid core unless you but 100 m of Belden!
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Old 15th May 2003, 07:36 PM   #7
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Default Hey Frank.......

Speaking of Belden 75 ohm......how much do you need?? I may have some surplus that you can use.

Jocko
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Old 15th May 2003, 07:56 PM   #8
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Default Re: Hey Frank.......

[QUOTE]Originally posted by Jocko Homo
[B]Speaking of Belden 75 ohm......how much do you need?? I may have some surplus that you can use.

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Thanks Jocko, but I am only interested in 78R twisted pair. Only in Hong Kong can you buy Belden in 1m qauntities. The coaxials don't sound that good to me.

I have a dCS system which I may try to rewire with GOLD sockets and the right twisted pairs.
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Old 15th May 2003, 09:33 PM   #9
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Which ones have you listened to????

Jocko
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Old 16th May 2003, 07:12 AM   #10
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Quote:
Originally posted by Jocko Homo
Which ones have you listened to????

Jocko
----------------------------------------------
dCS972/954, which makes most CDs enjoyable if upsampled to 24/192. Very sensitive to cables even on the BNC 75R connections but very musical. Bought for an excellent price in Hong Kong. Should be even cheaper now if you dare go!
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