bannana plugs.
- Thread starter manu4panjab
- Start date
manu4panjab
New Member
so if i buy banana plugs from dac company ,i have to reconnect once a week right
please reply
please reply
that is correct, once a week in jalandhar, and twice a week if you live on the coast.
also read the article which follows in the next post
ConnectorSupplier.com - Electrical Contact Resistance: Review of Elementary Concepts
this is an article which sheds some light on this pandora's box that manu4panjab opened
this is an article which sheds some light on this pandora's box that manu4panjab opened
manu4panjab
New Member
ConnectorSupplier.com - Electrical Contact Resistance: Review of Elementary Concepts
this is an article which sheds some light on this pandora's box that manu4panjab opened
thanks brother
to the contrary-
"Contaminant films may also form by galvanic corrosion of the materials in contact. One of the well-known corrosion mechanisms is pore corrosion in gold-plated surfaces. As suggested by its name, this type of corrosion stems from the presence of tiny pores (usually sub-micron in dimensions) in the gold electroplate used as a finish on many connector surfaces. These pores allow access of corrosive environmental contaminants, such as hydrogen sulfide, sulfur dioxide and chlorides, along with moisture, to the nickel underplate or other substrate materials. Synergistic chemical reactions of the contact materials with the contaminants and water lead to the formation of solid corrosion products that creep out of the pores and spread along the contact surfaces. Examples of these corrosion blooms are shown in Figure 6 [4]. A striking example of the formation of copper sulfide corrosion products generated below a gold electroplate is shown in the cross-section of Figure 7 [5]. Pore corrosion blooms of the type illustrated in Figure 6 and give rise to increases in contact resistance of the magnitude illustrated in Figure 5, and cause severe contact degradation."
psychotropic
Well-Known Member
but most banana plugs you see are gold plated, does that mean we must now hunt for ones that are not?
i think it means -"buy the most expensive ones" - there are GP bananas which retail for $0.50 a pair, and others that cost $ 50 a pair. i suppose the costlier ones have a method of gold deposition that is nearer perfection (read lack of pores) than the less expensive ones (read S.E. Asian and MX
)
psychotropic
Well-Known Member
bah, i'll stick with bare wire and save the cash
i think it means -"buy the most expensive ones" - there are GP bananas which retail for $0.50 a pair, and others that cost $ 50 a pair. i suppose the costlier ones have a method of gold deposition that is nearer perfection (read lack of pores) than the less expensive ones (read S.E. Asian and MX
i think it means -"buy the most expensive ones" - there are GP bananas which retail for $0.50 a pair, and others that cost $ 50 a pair. i suppose the costlier ones have a method of gold deposition that is nearer perfection (read lack of pores) than the less expensive ones (read S.E. Asian and MX
Great informative posts on this thread!! I can just picture one day - the story of the hopeless audiophile addict melting his wife's jewelery to make pure gold banana plugs :lol:
Cheers
bah, i'll stick with bare wire and save the cash
The BEST option!!
connectors only add complications and junctions of trouble
I could not digest all the macroscopic mumbo-jumbo about contact points and corrosion completely ... What about pure copper spades that are not plated? If I silver solder the wire to them ...? Please spare a thought for them ....
Edit: I mean will a-spots get degraded if corrosion and inferior quality plating is absent? Oxidation can be fixed with brasso periodically right?
TIA
Edit: I mean will a-spots get degraded if corrosion and inferior quality plating is absent? Oxidation can be fixed with brasso periodically right?
TIA
Last edited:
I could not digest all the macroscopic mumbo-jumbo about contact points and corrosion completely ... What about pure copper spades that are not plated? If I silver solder the wire to them ...? Please spare a thought for them ....
Edit: I mean will a-spots get degraded if corrosion and inferior quality plating is absent? Oxidation can be fixed with brasso periodically right?
TIA
pure copper may not be a viable option, because copper (whether OFC or not) will oxidize readily when in contact with atmospheric air; of the resultant two oxides of copper, one is a semiconductor and the other is a conductor.
degradation of contact will occur readily unless the joint is gas-tight (not easily achievable). therefore painful cleaning chores will result if copper is used as such.
that is why connectors are gold plated, (gold does not oxidise, and the oxide of silver is as good a conductor as silver itself), and if connectors are to be used they should have the highest quality gold-plating. the gold-plating should be multi-layer so as to minimise the chance of pores aligning themselves and exposing the plated substrate to atmospheric gases and impurities.
this is the reason WBT connectors command a premium, and here I quote from a cable manufacturer's site-
"We use Canare, Liberty and other superior Pro level speaker cable, which is one of the best in the industry. These are the same cables used by many recording studios and if they are good enough for them, well, let's say no more... Canare cable is a quad design and can be joined together for a 11 gauge equivalent cable or used as a bi-wire on one end. The Ram difference is how we manufacture the assemblies. The single weakest point in the speaker connection is where the wire connects to the amplifier and speaker.
Over time the copper oxidizes and resistance increases.
Connecting bare copper directly to the binding post can break strands and decrease wire capacity.
Our cables eliminate all of the above. We terminate all speaker cables with WBT gold plated copper crimp ferrules. Why? Properly crimped ferrule are gas-tight and gold does not oxidize. Since, we are a complete wire and harness manufacturer and we know how to terminate. Look at our ferrule terminations and you will see the difference. You now have a solid surface to put a gold plated banana or other connector allowing you to tighten the setscrews, without braking strands. Our banana plugs and spades are gold or silver plated copper. The WBT connectors are the best in the industry. If you want to save a few dollars check out the Viablue or our house banana connectors. Complete assembly are available in any length you need. Most assemblies ship 24 hours after you order. There is no snake oil in our cables."
Or, as psychotropic suggested, "Hang this shit, I will save the cash and use bare unterminated wire"
By the way, brasso is not recommended for cleaning electrical contacts.
what is recommended is the use of iso-propyl alcohol and non abrasive cleaning cloth. if iso-propyl alcohol is not available, 100% methyl alcohol may be used. (methyl alcohol is available with Laboratory suppliers).
And no, Old Spice and Brut should not be used!
Last edited:
cmsajith
Well-Known Member
What about silver solder the wire endings and use without any plugs?
I could not digest all the macroscopic mumbo-jumbo about contact points and corrosion completely ... What about pure copper spades that are not plated? If I silver solder the wire to them ...? Please spare a thought for them ....
Edit: I mean will a-spots get degraded if corrosion and inferior quality plating is absent? Oxidation can be fixed with brasso periodically right?
TIA
Yeah this was suggested to me once earlier ...
Silver is better than copper per the earlier post ...
Regards
Hi cranky, the cable expert Van Den Hul recommends his own product "Solution"(by thin coating for the metal contact treatment&protection for audio video interconnects&for speaker cable)and I am using the same oil and my system sounds nothing wrong.You may check his article in Van den Hul: New Products. regarding the treatment for cable &connectors. But we should never use grease,vaseline like lubes. Since the 'Solution' is much expensive (30 ml. Rs.1800/),we can apply a thin, water like viscosity of 3 in 1 oil , as film coated.Spades do *not* need tightening. Both spades and ring connectors are extensively used in high power electrical transmission systems, that need many times the capacity and reliability of a consumer audio system.
If you have had to tighten spades often personally, you have either not done it properly the first time, or (more likely) your binding post does not have the capability of gripping spades with sufficient tension. Spades when properly secured are a lifetime connection. Using spades is illegal in many countries because it's very difficult to properly insulate, and the EU forbids use of any exposed electrical connection, regardless of voltage or current.
Are you suggesting that we put machine oil or other liquids on our wire ends before securing on to a post? And you really believe that advice is safe and effective? Liquids conduct much less efficiently than metal, as you probably know. I am sure you are enjoying your system with any method you may choose to, but I'm not sure it is advice that should be passed around.
Have a nice day
regards.
having researched this topic thoroughly over the past few days, the consensus (pardon me, if i take this liberty to speak) is this post (cranky's) above.
Trust me, i have read reams and reams of digital material (!), and the way to go is outlined above
marsilians
Well-Known Member
I have been using isopropyl alcohol to clean all binding posts and plugs every year during Ayudha Puja day. It has kept thing clean and tidy fo r > 10 yrs. I dont want to belittle VDH and its solution offering but there are cheaper alternatives.
Now, i do not know why this did not occur to me. an elegant solution and easy to remember!
i have been keeping my work tools and books for ayudha puja, but cleaning contacts........... very good idea
A beautiful, well-constructed speaker with class-leading soundstage, imaging and bass that is fast, deep, and precise.
