Re: Topband: Control cable black conductors
> Moisture has gotten to the copper. I've heard white vinegar may > work. Its cheap...give it a try > Guys, if you use the vinegar or other cleaners, but sure to clean if off with water after it's done it's job. Also, don't let it wick up into the insulation. Spreading the strands and wiping each with a cotton swab or rag will help prevent that. Charlie, N0TT > Carl AG6X > > -Original Message- > From: Topband [mailto:topband-boun...@contesting.com] On Behalf Of > Andy Ikin > Sent: Saturday, February 22, 2014 3:10 AM > To: Dave G4GED; Topband Reflector > Subject: Re: Topband: Control cable black conductors > > Dave G4GED Wrote on Feb. 22nd. > > > "Hi and thanks for reading. > > I'm trying to splice a damaged (rodents) RX ant control cable. > It has 7 insulated, stranded copper conductors all inside a PVC > jacket. > Problem is, when stripped of their insulation, 3 (black, brown and > green), of the copper conductors have become coated in a black film? > So > to effect jointing and soldering, require cleaning. > I've tried IPA 170 and several contact cleaners but none remove it. > So far, only Emery Cloth will do the job but it's very difficult to > clean each strand without breaking some and therefore weakening the > joint. > All the other 4 conductors are bright clean copper when stripped. > Could anyone tell me why some insulated copper conductors turn black > in > this way and whether there's a better way of cleaning it off." > > > Dave, maybe you could try dilute sulphuric acid or lime scale > remover > VIAKAL. The black residue on the copper is probably copper oxide. > > If you end up replacing the cable run then use tined copper > conductors. > > 73 > > Andrew G8LUG > > > > > > > _ > Topband Reflector Archives - http://www.contesting.com/_topband > _ > Topband Reflector Archives - http://www.contesting.com/_topband > _ Topband Reflector Archives - http://www.contesting.com/_topband
Re: Topband: Control cable black conductors
Nothing said about concentration. We eat acids all the time (e.g., coffee, citric fruits, vinegar) and your stomach already has acid (HCl). 73, Larry W6NWS -Original Message- From: Charlie Cunningham Sent: Saturday, February 22, 2014 9:25 AM To: 'Larry' ; topband@contesting.com Subject: RE: Topband: Control cable black conductors And people DRINK this stuff!!?? :) -Original Message- From: Topband [mailto:topband-boun...@contesting.com] On Behalf Of Larry Sent: Saturday, February 22, 2014 9:17 AM To: topband@contesting.com Subject: Re: Topband: Control cable black conductors Phosphoric acid is still listed. 73, Larry W6NWS -Original Message- From: Kenneth Grimm Sent: Saturday, February 22, 2014 7:51 AM To: Tom W8JI Cc: Dave G4GED ; topband Subject: Re: Topband: Control cable black conductors Is it phosphoric acid that gives Coca Cola its peculiar cleaning ability? I no longer can imbibe cola drinks due to a very annoying allergy, so I can't check a label to see if it is listed. I do know that Coke will clean oil deposited on your windshield when commercial windshield washing liquids just cause it to smear...so it has something in it that that may work quite well, and without turning your hands red! 73, Ken - K4XL On Sat, Feb 22, 2014 at 7:38 AM, Tom W8JI wrote: All the other 4 conductors are bright clean copper when stripped. Could anyone tell me why some insulated copper conductors turn black in this way and whether there's a better way of cleaning it off. Water inside the insulation plus sulfur and/or irons that formed copper sulfide or covellite. I've been successful using phosphoric acid. It is sold as a clear liquid wire or mag wheel cleaner around here. You'll know it by how red and painful it turns your hands. _ Topband Reflector Archives - http://www.contesting.com/_topband -- Ken - K4XL BoatAnchor Manual Archive BAMA - http://bama.edebris.com "Show me a politician who is poor, and I'll show you a poor politician." - Carlos Hank González _ Topband Reflector Archives - http://www.contesting.com/_topband _ Topband Reflector Archives - http://www.contesting.com/_topband _ Topband Reflector Archives - http://www.contesting.com/_topband
Re: Topband: Control cable black conductors
Here in the USA, I keep a bottle of TARN-X on hand. It works well on copper and silver and is also listed for gold and platinum. Available in local markets in the kitchen cleaning supplies. Rinse after cleaning to remove residual. Arne N7KA _ Topband Reflector Archives - http://www.contesting.com/_topband
Re: Topband: Control cable black conductors
And people DRINK this stuff!!?? :) -Original Message- From: Topband [mailto:topband-boun...@contesting.com] On Behalf Of Larry Sent: Saturday, February 22, 2014 9:17 AM To: topband@contesting.com Subject: Re: Topband: Control cable black conductors Phosphoric acid is still listed. 73, Larry W6NWS -Original Message- From: Kenneth Grimm Sent: Saturday, February 22, 2014 7:51 AM To: Tom W8JI Cc: Dave G4GED ; topband Subject: Re: Topband: Control cable black conductors Is it phosphoric acid that gives Coca Cola its peculiar cleaning ability? I no longer can imbibe cola drinks due to a very annoying allergy, so I can't check a label to see if it is listed. I do know that Coke will clean oil deposited on your windshield when commercial windshield washing liquids just cause it to smear...so it has something in it that that may work quite well, and without turning your hands red! 73, Ken - K4XL On Sat, Feb 22, 2014 at 7:38 AM, Tom W8JI wrote: > All the other 4 conductors are bright clean copper when stripped. >> Could anyone tell me why some insulated copper conductors turn black >> in this way and whether there's a better way of cleaning it off. >> > > > Water inside the insulation plus sulfur and/or irons that formed > copper sulfide or covellite. > > I've been successful using phosphoric acid. It is sold as a clear > liquid wire or mag wheel cleaner around here. You'll know it by how > red and painful it turns your hands. > > > > > _ > Topband Reflector Archives - http://www.contesting.com/_topband > -- Ken - K4XL BoatAnchor Manual Archive BAMA - http://bama.edebris.com "Show me a politician who is poor, and I'll show you a poor politician." - Carlos Hank González _ Topband Reflector Archives - http://www.contesting.com/_topband _ Topband Reflector Archives - http://www.contesting.com/_topband _ Topband Reflector Archives - http://www.contesting.com/_topband
Re: Topband: Control cable black conductors
Phosphoric acid is still listed. 73, Larry W6NWS -Original Message- From: Kenneth Grimm Sent: Saturday, February 22, 2014 7:51 AM To: Tom W8JI Cc: Dave G4GED ; topband Subject: Re: Topband: Control cable black conductors Is it phosphoric acid that gives Coca Cola its peculiar cleaning ability? I no longer can imbibe cola drinks due to a very annoying allergy, so I can't check a label to see if it is listed. I do know that Coke will clean oil deposited on your windshield when commercial windshield washing liquids just cause it to smear...so it has something in it that that may work quite well, and without turning your hands red! 73, Ken - K4XL On Sat, Feb 22, 2014 at 7:38 AM, Tom W8JI wrote: All the other 4 conductors are bright clean copper when stripped. Could anyone tell me why some insulated copper conductors turn black in this way and whether there's a better way of cleaning it off. Water inside the insulation plus sulfur and/or irons that formed copper sulfide or covellite. I've been successful using phosphoric acid. It is sold as a clear liquid wire or mag wheel cleaner around here. You'll know it by how red and painful it turns your hands. _ Topband Reflector Archives - http://www.contesting.com/_topband -- Ken - K4XL BoatAnchor Manual Archive BAMA - http://bama.edebris.com "Show me a politician who is poor, and I'll show you a poor politician." - Carlos Hank González _ Topband Reflector Archives - http://www.contesting.com/_topband _ Topband Reflector Archives - http://www.contesting.com/_topband
Re: Topband: Control cable black conductors
Lime away will clean it also .But you have to rinse the wire off to remove residuals. ~73 Don KD8NNU FH#4107 -.- -.. ---.. –. –. ..- On Sat, Feb 22, 2014 at 5:15 AM, Dave G4GED wrote: Hi and thanks for reading. I'm trying to splice a damaged (rodents) RX ant control cable. It has 7 insulated, stranded copper conductors all inside a PVC jacket. Problem is, when stripped of their insulation, 3 (black, brown and green), of the copper conductors have become coated in a black film? So to effect jointing and soldering, require cleaning. I've tried IPA 170 and several contact cleaners but none remove it. So far, only Emery Cloth will do the job but it's very difficult to clean each strand without breaking some and therefore weakening the joint. All the other 4 conductors are bright clean copper when stripped. Could anyone tell me why some insulated copper conductors turn black in this way and whether there's a better way of cleaning it off. Thanks in advance. Dave --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com _ Topband Reflector Archives - http://www.contesting.com/_topband _ Topband Reflector Archives - http://www.contesting.com/_topband
Re: Topband: Control cable black conductors
Is it phosphoric acid that gives Coca Cola its peculiar cleaning ability? I no longer can imbibe cola drinks due to a very annoying allergy, so I can't check a label to see if it is listed. I do know that Coke will clean oil deposited on your windshield when commercial windshield washing liquids just cause it to smear...so it has something in it that that may work quite well, and without turning your hands red! 73, Ken - K4XL On Sat, Feb 22, 2014 at 7:38 AM, Tom W8JI wrote: > All the other 4 conductors are bright clean copper when stripped. >> Could anyone tell me why some insulated copper conductors turn black in >> this way and whether there's a better way of cleaning it off. >> > > > Water inside the insulation plus sulfur and/or irons that formed copper > sulfide or covellite. > > I've been successful using phosphoric acid. It is sold as a clear liquid > wire or mag wheel cleaner around here. You'll know it by how red and > painful it turns your hands. > > > > > _ > Topband Reflector Archives - http://www.contesting.com/_topband > -- Ken - K4XL BoatAnchor Manual Archive BAMA - http://bama.edebris.com "Show me a politician who is poor, and I'll show you a poor politician." - Carlos Hank González _ Topband Reflector Archives - http://www.contesting.com/_topband
Re: Topband: Control cable black conductors
All the other 4 conductors are bright clean copper when stripped. Could anyone tell me why some insulated copper conductors turn black in this way and whether there's a better way of cleaning it off. Water inside the insulation plus sulfur and/or irons that formed copper sulfide or covellite. I've been successful using phosphoric acid. It is sold as a clear liquid wire or mag wheel cleaner around here. You'll know it by how red and painful it turns your hands. _ Topband Reflector Archives - http://www.contesting.com/_topband
Re: Topband: Control cable black conductors
All Moisture has gotten to the copper. I've heard white vinegar may work. Its cheap...give it a try Carl AG6X -Original Message- From: Topband [mailto:topband-boun...@contesting.com] On Behalf Of Andy Ikin Sent: Saturday, February 22, 2014 3:10 AM To: Dave G4GED; Topband Reflector Subject: Re: Topband: Control cable black conductors Dave G4GED Wrote on Feb. 22nd. "Hi and thanks for reading. I'm trying to splice a damaged (rodents) RX ant control cable. It has 7 insulated, stranded copper conductors all inside a PVC jacket. Problem is, when stripped of their insulation, 3 (black, brown and green), of the copper conductors have become coated in a black film? So to effect jointing and soldering, require cleaning. I've tried IPA 170 and several contact cleaners but none remove it. So far, only Emery Cloth will do the job but it's very difficult to clean each strand without breaking some and therefore weakening the joint. All the other 4 conductors are bright clean copper when stripped. Could anyone tell me why some insulated copper conductors turn black in this way and whether there's a better way of cleaning it off." Dave, maybe you could try dilute sulphuric acid or lime scale remover VIAKAL. The black residue on the copper is probably copper oxide. If you end up replacing the cable run then use tined copper conductors. 73 Andrew G8LUG _ Topband Reflector Archives - http://www.contesting.com/_topband _ Topband Reflector Archives - http://www.contesting.com/_topband
Re: Topband: Control cable black conductors
In message <530878d3.1010...@tiscali.co.uk>, Dave G4GED writes Could anyone tell me why some insulated copper conductors turn black in this way and whether there's a better way of cleaning it off. Dave A very effective (and cheap/safe) method of cleaning the conductors is to buy a can of coke and dip the conductors in it. They will be bright and shiny in no time. Just don't drink the coke afterwards! -- 73 Ian, G3NRW _ Topband Reflector Archives - http://www.contesting.com/_topband
Re: Topband: Control cable black conductors
Dave G4GED Wrote on Feb. 22nd. "Hi and thanks for reading. I'm trying to splice a damaged (rodents) RX ant control cable. It has 7 insulated, stranded copper conductors all inside a PVC jacket. Problem is, when stripped of their insulation, 3 (black, brown and green), of the copper conductors have become coated in a black film? So to effect jointing and soldering, require cleaning. I've tried IPA 170 and several contact cleaners but none remove it. So far, only Emery Cloth will do the job but it's very difficult to clean each strand without breaking some and therefore weakening the joint. All the other 4 conductors are bright clean copper when stripped. Could anyone tell me why some insulated copper conductors turn black in this way and whether there's a better way of cleaning it off." Dave, maybe you could try dilute sulphuric acid or lime scale remover VIAKAL. The black residue on the copper is probably copper oxide. If you end up replacing the cable run then use tined copper conductors. 73 Andrew G8LUG _ Topband Reflector Archives - http://www.contesting.com/_topband
