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12.208.156.156
Greetings, all.
I hope someone can help me with this: I'm working on repairing a Linn LK2 power amp (one channel dead), and while I've got it torn apart, I thought I'd experiment with using its power supply to augment the one in my LK280 (thus giving the LK280 a separate power supply for each channel).
Doing so is easy enough: I just have to provide a jumper from the LK2 to the LK280 -- using this connector (see photo: the white connectors (male/female) in between the big caps).
Problem is, I don't know what kind of connector it is, and neither does anyone at my local electronics supply shops.
Anybody know what this connector is called, and where I can get a couple of them (male & female)?
Thanks!
P.S. I know, I can run wires & solder them to it or whatever, but I don't really want to mess with the existing wires/connectors.
Follow Ups:
,
Your proposed experiment may result in amplifier oscillations and complete destruction.
The added inductance of the extended power supply leads can allow some mutual inductive coupling and create an unwanted, positive feed-back path.
I didn't see your post 'til after I'd done the mod.
No problems so far (and I've had it cranked up pretty loud at times).
The power supply jumper is about 2 feet in length, made of zip cord.
Ultimately, I plan to put both transformers in an enclosure separate from the power amp; then I'll have two jumpers.
I strongly suspect this is what Linn did to make its Spark external PS for the LK280. I remember that the "Spark option" involved removing the transformer from the LK280 chassis; I think what they did was to transplant it into a box with another PS, and added some receptacles on the back.
What would be some signs of the potential problem you mentioned?
thanks
dmc
As long as the amp has sufficient local filter capacitance to ensure that the umbilical cable inductance does not permit oscillation, you should be fine. However, this is a dangerous thing to do.
How do you think the manufacturer did it?
I don't think any changes are made to an LK280 to use the external PS with it, except that its transformer is removed. (I.e., the manufacturer's Spark external PS used an umbilical (two, in fact).)
Is there a way (within reason) to construct the umbilical so that its inductance is small enough as to be negligible?
Do you know of anyplace I can read up on this kind of thing (such a concern hadn't even crossed my mind; I'd best get educated).
thanks again
dmc
I would use shielded, twisted-pair wire for the umbilical, and provide plenty of filter capacitance as close to the load as possible. What you don't want to do is place the big filter capacitors at the far end of the umbilical cable!
.
.......here is a Molex connector:
Cheers
~
Here's a Molex connector as well
Molex makes more than one type of connector. The one shown in the picture from the OP is a Molex connector as well.
.......it's called an AMP connector.
Now in different industries, such that each of us may work in, the Molex image that I posted is known as nothing more than a Molex. Whether in a 2, 3, 6 or 24 connections in one connector.
In the precision world I/We work in, the OP's connector is an AMP connector that have a completely different attachment method, one being edge mount PCB, and one being male to female connector connections, such as the Molex pic I posted and they are NOT interchangeable.
Cheers
for someone to assume that others might know what he is talking about when he refers to a connector type as "Molex", or "Amp". Considering the fact that both Molex and Amp (Tyco to be precise) both have thousands if not tens of thousands of connector types which they commercially sell, at best it will be considered bad practice but in my book more akin to ignorance. Please don't try to play off misguided bad habits of non highly technical groups as industry standard because you are misrepresenting an entire industry and it just plain looks bad.
Now don't get me wrong I too am familiar with folks who do use the term "Molex" or "Amp" the way you suggest however in most cases I am aware of these folks are usually invoved with PC technician type work and hardly what I would consider "precision" work. In fact most that are true electronics professionals would distance themselves from and likely look down their noses at this type of "professional" due to exactly this type of sloppy and unprofessional behavior.
I find it very ironic the you would play the precision card when you are intending to boil tens of thousands of connector types down under 2 words. This naming scheme you have proposed would be the very definition of imprecision not to mention a bad idea promoting confusion.
Molex and AMP are only 2 examples of the many different connectors that are used in the manufacturing world I work in and yes, it requires a precision of technical ability to even get into the door. Being technically sloppy in my line of work has the potential to scrap several Million dollars worth of product in a matter of mere minutes!!
I am well aware that Tyco/AMP and Molex, among others, make a myriad of connector products of which many of them use connector Product/Trade names to easily identify the many different connector applications and it is much easier in a high volume manufacturing world to just use the connector Product/Trade name to quickly identify what type of connector it is.
The nomenclature we use may not carry forward in a different industry but lumping myself, and others, into the group U so ignorantly took the liberty of using is a disservice unto itself. Also, I am not sure what type of "true electronics professional" U are refering to but I can assure U that I and many thousands of others fall squarely in this categeory and we all use the same nomenclature to quickly/efficiently identify connectors.
Your pompous attitude only serves to illuminate your ignorance with regards to the subject at hand and in the future, please refrain from speaking to a subject you seem to have little knowledge of.
~
"and it is much easier in a high volume manufacturing world to just use the connector Product/Trade name to quickly identify what type of connector it is."
Precisely. This is the basis of my entire point: because it is easier does not make it more precise or better. In fact my point is that the opposite is true. Sloppiness like this will only result in confusion.
Since we are on an audio related site, what may be considered acceptable bad habits in your industry may not be acceptable here or elsewhere. Personally I like to try to set a higher standard, and cringed when I saw your post and reply arguing for the sake of sloppiness and imprecision. It's laziness, plain and simple.
Besides that I would be willing to bet the bad habits you have formed on a high volume manufacturing floor that you are presenting here as industry standard for your industry would not prevail absolutely across your company. Proffesionals I know who do more than cookie cutter design would take a higher level view of the world and realize the potentially confusing nature of this particular bad habit is not worth it in the end.
"but lumping myself, and others, into the group U so ignorantly took the liberty of using is a disservice unto itself."
What group? Technicians? I think if you reread my post you would find that I didn't lump YOU into any group but pointed out that there is a group I am familiar with who uses this terminology and they all belong to a group I've labelled "technicians". I don't see why anyone would be offended by being lumped in with that group, other than the bad habits we are talking about that a few examples from within this group display, but since you clearly are I apologise that you misunderstood what I wrote and assumed I had lumped you into the "technician" group. Sheesh.
Clearly there are going to be bad apples in every group. My argument is that people should try to set a higher standard to avoid confusion.
"I am not sure what type of "true electronics professional""
That would be: someone responsible for the proper design or manufacture of state of the art or innovative electronic product. I find it a bit amusing that you have segregated your industry as special but who am I to argue about that? I suspect that there are "true electronic professionals" by my standards in your company that would probably be ashamed of the association between these bad habits and them. Of course without knowing what company you work for I could most certainly be giving your company more credit than is due.
"Your pompous attitude only serves to illuminate your ignorance with regards to the subject at hand"
Strong statements like this might actually mean something if there were a supporting argument included which led to this conclusion.
"please refrain from speaking to a subject you seem to have little knowledge of"
Will do. Luckily I do happen to know a bit of this particular subject, and so therefore wasn't violating this mandate from above.
*sigh*...........
I am not going to waste any more of Audio Asylum's bandwidth bantering back and forth with U over such mundane issues that will certainly result in an "agree to disagree" culmination.
I will certainly be glad to enlighten U on what is involved in repairing, maintaining and sustaining state of the art high precision manufacturing equipment in an HVM environment but not on this forum.
Cheers and best of luck to U.
"I am not going to waste any more of Audio Asylum's bandwidth bantering back and forth with U over such mundane issues that will certainly result in an "agree to disagree" culmination."
Uh sure whatever. Why'd you bring up if you don't think it's important? I'm known for sweating the details that's why I jumped in.
"I will certainly be glad to enlighten U on what is involved in repairing, maintaining and sustaining state of the art high precision manufacturing equipment in an HVM environment but not on this forum."
Nah, this is completely irrelevant to what we were supposed to be discussing which of course IS relevant to the board. Besides, my manufacturing and test engineers are already doing a superb job of this at my company so why would I care?
...but whatever you do, don't go to molex.com and look at their catalog, or you might kill yourself out of shame :-)
"...but whatever you do, don't go to molex.com and look at their catalog, or you might kill yourself out of shame :-)"
Your statement is laughable to the point of being pathetic but hey, if it bolstered your ego just a smidge............. ;-)
Molex makes a plethora of connectors and calling all of these connectors a "Molex" is just plain ignorant. Many of their connectors have Product/Trade names other than Molex to identify them for unique applications. Oh and by the way, AMP's version of the connector the OP is looking for can be found in the AMP/TYCO MTA-100 series header/connector family.
In short, neither of us offered the OP much help since we got caught up in this silliness and in the future, it would behoove us all, and cut down on wasted bandwidth, to be more specific when answering queries.
Cheers,
~
> > Molex makes a plethora of connectors and calling all of these connectors a "Molex" is just plain ignorant. < <
Calling a connector made by Molex a "Molex" is just plain ignorant? OK, kenster, whatever you say. Like I said, it's simply not worth arguing over, as you have so clearly demonstrated.
I'm glad we have you around to educate us on these subtleties. Without you to enlighten us that a connector manufactured and sold by Molex isn't a Molex, I just don't know what we'd do.
;-)
Mouser Item number: 571-111237223 (for three prong) or
AMP part number: 1-1123722-3.
HTH
I'm sure it has a name but it's commonly called a 3-pin rectangular connector and it's mate on the circuit board is called the header. You would need to know the spacing in millimeters.
check out the link. then try DigiKey or the Allelectronics site.
good luck,
Bruce
- http://www.allelectronics.com/cgi-bin/item/CON-243/189/3-PIN_CONNECTOR_W_HEADER,_.1%22#34;_.html (Open in New Window)
Thank you very much, brupri, you're a gentleman and a scholar!
Well you're half right, I'm not sure about the scholar...
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