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Q. What are Banana Connectors?

A. A banana connector (commonly banana plug for the male, banana jack or banana socket for the female) is a single-wire (one conductor) electrical connector used for joining wires to equipment. The plugs are frequently used to terminate patch cords for electronic test equipment. They are also often used as the plugs on the cables connecting the amplifier to the loudspeakers in hi-fi sound systems.

The plug consists of a cylindrical metal pin about 25 mm (one inch) long, with a diameter of 4 mm, which can be inserted into a matching 4 mm socket to make an electrical contact. The pin has one or more lengthwise springs that bulge outwards slightly. These press against the sides of the socket, improving the electrical contact and preventing the pin from falling out. The curved profile of these springs is probably the origin of the name "banana plug". The other end of the plug has a lug connector to which a length of flexible insulated equipment wire can be attached, which is either screwed, soldered, or crimped into place. An insulating plastic cover is usually fitted over this end.

The rear end of a 4 mm plug often has a 4 mm hole drilled in it, either transversely or axially, to accept the pin of another 4 mm plug. This type is called a stackable 4 mm plug.

For high voltage use, a special sheathed version of the banana plug and socket is used. This version has an insulating sheath around both the male and female connectors to avoid accidental contact. The sheathed male plug will not work with an unsheathed female socket, but an unsheathed male plug will fit a sheathed female socket.

Individual banana plugs and jacks are commonly color-coded red and black but are available in a wide variety of colors. Dual banana plugs are usually black with some physical feature such as a molded ridge marked "Gnd" indicating the relative polarity of the two plugs.

Besides plugging into specific banana jacks, banana plugs may plug into five-way or universal binding posts on audio equipment.

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2013-08-19 16:10:00
Just what I needed, Thanks
2013-06-14 18:44:00
Great product, good price, good comunication, strongly recommend!!! A++++++++
2013-09-04 13:48:00
2013-10-01 13:45:00
Great Thanks!...
2014-01-20 15:16:00
arrived as described and fairly quickly
2013-10-09 06:39:00
Item as described, thanks!
2014-02-09 06:08:00
Good product!
2013-09-21 05:32:00
fast del a +++++++++++ works great got 8 tvs up with fios or videos
2013-09-02 17:37:00
2013-09-20 07:38:00
Good seller. Thank you!
2013-10-23 20:42:00
2013-06-12 01:40:00
worked nicely;am happy with this
2013-06-07 18:36:00
Great Switch Box! Works well with my tube amps! Fast Delivery too! Thanks!
2013-10-31 14:51:00
prima vende e poi non spedisce in italia annullando la transazione
2013-06-06 23:10:00
Great device! Thank you!! ++++++
2013-06-29 00:56:00
Perfect all the way!! Thanks a lot!!
2014-01-22 05:31:00
2013-11-07 02:26:00
Great product great price super fast shipping no problems!!!
2013-12-05 21:07:00
Looks like a quality product at a great rate,haven't hooked it up yet thanks
2013-04-25 20:45:00
Thanks, great purchase.
2013-10-28 18:06:00
Worked Great
2014-01-01 10:01:00
ok perfect
2013-11-06 16:35:00
Brandnew item, really quick delivery, overall very satisfied
2013-12-19 11:00:00
Item as described. Fast shipping.
2014-03-07 08:07:00
"HDWISE had the lowest price that I could find for the item that I wanted and with free shipping I simply could not pass it up. Being packaged well and arriving as… Read full review
By dublbublgum
2013-06-14 00:00:00
Item as described and works perfectly. Fast delivery. Thanks!
2013-05-27 06:05:00
Item arrived as expected. Thank you!
2013-08-27 19:52:00
Got it. Thanks!
2014-02-01 21:48:00
For a long time I've wanted to buy Gefen Component Video Extender and I read a lot about it. Also I had to compare prices. I was pleasantly surprised, your prices and shipping really good and fast. Moreover it was found that this Video Extender is easy-to-use. Thanks guys!
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2013-05-01 00:00:00
You guys have awesome products and selections!!!AAAAA+++++ SELLER
2014-03-05 07:56:00
Excellent value, very happy, quick delivery
2013-11-26 06:33:00
"Very pleased with price,service and speedy shipping. ordered 4 ZVPro280 qam modulators for my project in fabulous Las Vegas, arrived in 2 days with free shipping,… Read full review
By hobus
2013-05-15 00:00:00
tres bon vendeur ,rien a dire
2013-04-30 05:45:00
Great product, great service.
2013-07-31 14:23:00
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