uxcell 10 Pcs Black Red Plastic Housing Binding Post Banana Jack Adapter for 4mm Safety Protection
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- Product Name : Binding Post;Fit Banana Plug Dia. : 4mm/ 0.16"
- Overall Size : 30 x 14mm / 1.2" x 0.55" (L*Max.D);Main Material : Metal
- Main Color : Silver Tone,Red,Black
- Net Weight : 44g
- Package Content : 10 x Binding Post
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Package Contents: 5 red and 5 black Binding Post.
The binding post is ideal for demanding speaker enclosure applications and amplifier.
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They install in a manner where the center contacted doesn't touch the case, so you can use these on a metal case without shorting everything out. Many of these types of jacks / posts cannot be mounted on metal.
I'm not great at soldering but I was able to heat the tab with a hole in it (the connection tab) and flow solder to the wire stick in the hole. Very easy!
These attach by threading a metal ring onto them from behind the panel. The rings fit nice and tight. I used two pairs of small pliers to tighten them in my tiny install space.
Yes: a few kind of warped while soldering: the center hole gets offset when looking straight down (no longer a nice bullseye). I just straightened out with a pencil while it was still hot from my soldering.
This happened on 3 of the 6 ones I installed. On 3 of these jacks I soldered a single wire and they were OK. On the others I was attaching around 6 wires, so it took more heat. I tested and all the jack worked fine even before straightening them.
These fit a random pair of wires with banana plugs that I had laying around.
The build is on my "Science and Optics" blog.
On the plus side, they don't take up too much room.