Hi,
I had some Neutrik plugs and bought some meters of pro audio cable to solder my own audio connection (instrument) cables. After soldering, I measured them out to check whether I can use them. I've got only 10~12 kOhms between the two poles. Do I have to resolder or may this be OK? It's round about the same with two cables.
I wonder because some speaker cables (with other material, but which I soldered, too) seem to be beyond some MOhms between the poles.
Bad work? I haven't been soldering for quite a time.
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Electrical quality of cables
Last edited by FZiegler on 13 Feb 2020, 17:29, edited 1 time in total.
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FZiegler - Donator
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Re: Electrical quality of cables
10-12 kOhm between the two is definitely wrong.
You should resolder - maybe you applied too much heat and melted some insulation or you have leaking flux or some other bad things
Start by inspecting both ends and fix the one that looks more suspicious first and then check again with the meter. Maybe it's only one end.
It may work as is in a pinch, but it will attenuate the signal and could color it too, and may get worse over time. So best to fix it immediately.
You should resolder - maybe you applied too much heat and melted some insulation or you have leaking flux or some other bad things
Start by inspecting both ends and fix the one that looks more suspicious first and then check again with the meter. Maybe it's only one end.
It may work as is in a pinch, but it will attenuate the signal and could color it too, and may get worse over time. So best to fix it immediately.
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Re: Electrical quality of cables
Thanks again, baekgaard!
I resoldered both cables. Got partially the same effect anew. But found out that it wasn't a problem of soldering alone: That was rather fine. So were the plugs. It happend only while assembling the plugs after soldering - sometimes all went fine (more than 10 MOhm between the two potentials), sometimes I had only some kOhm. Don't know why and how, but got to an end with it - after reassembling multiple times. Not inspiring much confidence, though.
What I want to hold on: It is possible to solder a plug so that there is a resistance between the contacts of more than 10 MOhm. Neither the cable nor the plugs provoke less.
I resoldered both cables. Got partially the same effect anew. But found out that it wasn't a problem of soldering alone: That was rather fine. So were the plugs. It happend only while assembling the plugs after soldering - sometimes all went fine (more than 10 MOhm between the two potentials), sometimes I had only some kOhm. Don't know why and how, but got to an end with it - after reassembling multiple times. Not inspiring much confidence, though.
What I want to hold on: It is possible to solder a plug so that there is a resistance between the contacts of more than 10 MOhm. Neither the cable nor the plugs provoke less.
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FZiegler - Donator
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Re: Electrical quality of cables
Can you please post a photo of your soldered plug? (both ends please!)
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Mr_-G- - Moderator
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Re: Electrical quality of cables
Maybe both terminals somehow touch the outer part of the connector when you assemble it? Have you tried to place some insulation around the terminals before you mount the outer casing?
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Re: Electrical quality of cables
After redoing it a few times, I now can't do it better. Again, after taking the photo, I had the problem again. Reopened it and screwed it together more carefully - and all's fine.
Thank you all!
Last edited by FZiegler on 19 Feb 2020, 02:07, edited 3 times in total.
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Re: Electrical quality of cables
you seem to be missing the plastic electrical shield that isolates the connections and wires from the case.
The blue strain relief/isolator should be covering the entire interior of the connector.
The blue strain relief/isolator should be covering the entire interior of the connector.
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Last edited by cgrafx on 19 Feb 2020, 07:00, edited 2 times in total.
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Re: Electrical quality of cables
My plastic shield was black - I moved it a bit backwards for the photo, but you can see it. Besides, I used the same model as you show on the photo.
The problem is, that the angle plug doesn't have any shield straight ahead where the brass piece of ground is. I tried it with a piece of shrinking hose just put in between, but that didn't help reliably - it may have moved around. When I closed the plug, that strain relief must have pushed the cable a bit forwards. I'm now more careful with placing that isolator (which is the pull relief as well) in the right place before closing the plug. If I should experience any problems in the next months, I could try with some thicker isolation material taken from the cable that I put in between.
The problem is, that the angle plug doesn't have any shield straight ahead where the brass piece of ground is. I tried it with a piece of shrinking hose just put in between, but that didn't help reliably - it may have moved around. When I closed the plug, that strain relief must have pushed the cable a bit forwards. I'm now more careful with placing that isolator (which is the pull relief as well) in the right place before closing the plug. If I should experience any problems in the next months, I could try with some thicker isolation material taken from the cable that I put in between.
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Re: Electrical quality of cables
Hi,
just for curiosity - is there a specific reason to solder these cables yourself instead of buying them, since they are available in high quality at decent price levels?
just for curiosity - is there a specific reason to solder these cables yourself instead of buying them, since they are available in high quality at decent price levels?
Regards Schorsch
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