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Why rotary-tip on 4mm banana plugs?
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artag:

--- Quote from: tggzzz on September 08, 2024, 07:32:32 pm ---
I'd noticed that back-to-back feature, but haven't found it to be a benefit, as yet.

--- End quote ---

I encountered them as patch leads on an analogue computer at college. Since patch leads often have to join several nodes, the ability to arbitrarily stack them, as well as their compact size, made them useful.

RS components have sold some with a single spring like one of the bunched pins for years. It runs in a groove in the plug. They also sold a stacking version with a screw cable clamp. Staple of many UK schools and labs. The spring is inferior to bunched-pin but pretty effective, though I have found them loose in certain socket types. They seem now to have dropped the stacking type but have similar-looking plugs from Hirschmann with either bunched-pin or lantern contacts.

artag:

--- Quote from: tooki on September 08, 2024, 11:56:20 pm ---
Aaaaahahahhaahhaa the audiophools think rhodium has a “taint” to the sound: https://audioaddictsforum.com/thread/2181/rhodium-plating 😂

--- End quote ---

Lol. Probably even on the (digital) lightning connector.

What amuses me is that're worrying about conductivity, which is irrelevant compared with the length of wire it's connected to. What they SHOULD be worrying about is the possibility of a dissimilar metal (or metal/metal oxide) contact that rectifies or is otherwise nonlinear.
mawyatt:

--- Quote from: MrCAL on September 08, 2024, 09:20:34 pm ---
--- Quote from: tooki on September 08, 2024, 06:23:45 pm ---
--- Quote from: The Soulman on September 08, 2024, 03:22:25 pm ---Anyone used these style as sold by ab-precision?



--- End quote ---
I don’t know who ab-precision is, but the original article made by Stäubli (formerly Multi-Contact), part numbers in tggzzz’s post above, are excellent.

In addition to the benefits that tggzzz listed and mawyatt confirmed, they also have the unique ability to be mated plug-to-plug on the male side, since you can just shove one plug into the other, and still use the stacking jacks on the backs. Their light weight also makes them ideal for test leads made of thin wire, so that there isn’t a heavy plug dangling off a thin lead. I used them to make banana-to-DuPont cables, for example. The way that their spring force works makes them fit snugly in basically any jack, yet without being annoyingly hard to use in tight jacks.

The downsides are that they only make solder versions of them, and just as mawyatt said, they can snag when inserting them into certain jacks, so careful alignment is sometimes necessary.

--- End quote ---

But perhaps their resistance/voltage-drop are higher than other jacks?
The wall/tube seems thin and it's likely made of relatively low-conducting-metal, because it need to have a spring-property, unless they are made of a special copper-alloy-mix? Or will the gold-plating compensate for that?
Are they rated just as high? 16-32A?

--- End quote ---

An advantage of these type connectors isn't high current use but their low thermal mass. The Banana Sockets in many Bench DMMs are often much warmer than ambient, so the connector large surface area and thin walled construction allow achieving thermal equilibrium with the sockets quicker than other Banana connector types, which benefits precision measurements.

Best,
DavidKo:
I bought them at Bürklin.

In 4 wire connection I use them on sense wires and high power ones on another pair for easy recognition.

Wrenches of Death:

We don't have crocodiles, but this state is ass deep in critters called "alligator mississippiensis". There's somewhere around a couple of million of them running loose here. The snout, jaws, and head of an American alligator are shaped noticeably differently than those of a crocodile. The standard  Mueller number 60 clip is an alligator clip. The Mueller number 85 clip is a crocodile clip

Since Mueller Electric was the actual inventor of the alligator clip, I would trust their nomenclature of the little beasties.

I suspect that if we were ass deep in crocodiles here, they would be called crocodile clips. ;D

Oh, and if you're ever in the neighborhood, don't walk around at night without  a flashlight!

WoD


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