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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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TESTIMONIALS
Item as described, thanks!
2014-02-09 06:08:00
Thanks, great purchase.
2013-10-28 18:06:00
arrived as described and fairly quickly
ponkowy
2013-10-09 06:39:00
worked nicely;am happy with this
baronvonbrian
2013-06-07 18:36:00
Worked Great
2014-01-01 10:01:00
items don't arrive-track number of other costumer.very slow e-mail answer
2014-01-29 12:05:00
Great product great price super fast shipping no problems!!!
2013-12-05 21:07:00
Got it. Thanks!
2014-02-01 21:48:00
ok perfect
2013-11-06 16:35:00
Great product, great service.
digitalgoo
2013-07-31 14:23:00
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
recomendable
2013-11-07 02:26:00
Perfect all the way!! Thanks a lot!!
2014-01-22 05:31:00
Brandnew item, really quick delivery, overall very satisfied
2013-12-19 11:00:00
Great product, good price, good comunication, strongly recommend!!! A++++++++
rfcalvilho
2013-09-04 13:48:00
Just what I needed, Thanks
cbro3454
2013-06-14 18:44:00
fast del a +++++++++++ works great got 8 tvs up with fios or videos
richietg
2013-09-02 17:37:00
Good product!
vitelinc
2013-09-21 05:32:00
Good seller. Thank you!
2013-10-23 20:42:00
You guys have awesome products and selections!!!AAAAA+++++ SELLER
2014-03-05 07:56:00
"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
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 scheduled, I am quite happy as a first-time customer.
By dublbublgum
2013-06-14 00:00:00
prima vende e poi non spedisce in italia annullando la transazione
deltamania
2013-06-06 23:10:00
Item as described and works perfectly. Fast delivery. Thanks!
zarath111
2013-05-27 06:05:00
3701 RCA,1x4 COMPOSITE VIDEO DISTRIBUTION - Good Seller
adamlimo
2013-10-01 13:45:00
Great Switch Box! Works well with my tube amps! Fast Delivery too! Thanks!
2013-10-31 14:51:00
Great Thanks!...
2014-01-20 15:16:00
Great device! Thank you!! ++++++
sergeyklenov
2013-06-29 00:56:00
1x4 COMPOSITE VIDEO DISTRIBUTION AMPLIFIER - Thank You
adamlimo
2013-08-19 16:10:00
Item arrived as expected. Thank you!
orenwolf
2013-08-27 19:52:00
bonne
819_viens
2013-06-12 01:40:00
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, right in time! Will use them again for upcomming projects. Thanks a lot from Hobus Visual!
By hobus
2013-05-15 00:00:00
Awesome!!!
saknarong
2013-09-20 07:38:00
Item as described. Fast shipping.
2014-03-07 08:07:00
 
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