I knew that Veitnam comment would not go unnoticed but the humidity point just had to be driven home in a meaningful way.
If copper really is being corroded to the point contacts are broken down in just a few days, all I can think of is his body chemistry must be both salty and acidic touching the wire and the problem agsasserbated by extream humidity.
I have seen this happen with guns, some people just can't touch blued fire arms with out causing them to rust right through the bluewing after a couple weeks.
Others like me can leave finger prints and a year later nothing , no rust . It can just be him touching the copper conductor and humidity doing the rest. In that case deoxit will solve the problem.
Last edited by goraman; 21-02-2019 at 19:23.
Jeff :UBERTHREADKILLER
These budget Audion speaker wires where hooked up 8 years ago.
At our store and remained untouched till today. The jacket to spite being run in a bright sunny window sill is a little yellowed but still soft and flexible with no degradation to the wire at all.
If you look carefully the wire has little arrows and the printed side is positive the negative side is braided in reverse direction and is marked -------.
All there cables are very low capacitance and has very low DC resistance. For not a large sum of money they are exceptional , this is their budget wire BTW.
14 AWG. is 1.63 MM.
This stuff spent 8 years being run 12 hours a day I unhooked the amp and speakers to put in my son Conner's room as we are changing our store a little and the stereo won't be needed .
I was surprised after unhooking everything how good this wire still is ,look at the bare conductors! I am going to re use it in Conner's room. This stuff continues to impress me.
Last edited by goraman; 22-02-2019 at 06:29.
Jeff :UBERTHREADKILLER
It's not just your speaker external cables you need to consider but if you can take the drive units out easily then have a look how they are connected. To my horror I found both my tweeters and mid/bass units were connected to the crossover board with spade terminals at both speaker and board so 8 spade terminals that had all oxidised over 30 years! Removing the oxidation had a significant effect as it did cleaning my valve pins, fuses ........
Main system : VPI Scout 1.1 / JMW 9T / 2M Black / Croft 25R+ / Croft 7 / Heco Celan GT 702
Second System : Goldring Lenco GL75 / AT95EX / Pioneer SX590 / Spendor SP2
Location: North Island New Zealand
Posts: 1,757
I'm Chris.
Location: Bristol
Posts: 339
I'm Tony.
As a follow up to this thread, I discovered today that one of the spades on the jumper leads to the speakers had come loose and was causing the issue that I complained about.
The jumper wire is quite close to the rear wall and when I was pulling my hair out trying to figure why the sound kept going off I did play with the positioning of the speakers and likley at times broke the connection and at other times pushed it together! This lead me to believe that the problem lay with the amp speaker connections when it was the other end!
Anyway, I have now fitted a new spade to the jumper and the sound is lovely and crisp again!
I knew something was wrong just didn't get to the right end of it!
VPI Scout 1.1, Hana ML, Vanderveen MC10 SUT, WAD Phono3, Rpi3B+/Digione Signature, Xiang Sheng DAC-01, WAD KiT6550 and Reiver Edingdale SR
Location: Cardiff Wales
Posts: 32
I'm winston.
I believe oxidisation is the correct term.
Noun 1. oxidisation - the process of oxidizingoxidisation - the process of oxidizing; the addition of oxygen to a compound with a loss of electrons; always occurs accompanied by reduction
oxidation, oxidization
calcination - the conversion of metals into their oxides as a result of heating to a high temperature
https://www.thefreedictionary.com/oxidisation
If you polish a piece of copper and leave it for a day and then polish it again (or another piece) you will see the difference. Many metals react with oxygen in the air. That process speeds up with the application of heat hence the use of flux when stick welding or soldering to protect in the former and clean in the latter.
I give my connections a re-seat about once a month.
Last edited by winstonmalcolm; 05-03-2019 at 20:03.