Banana straight male-to-male plug adapter? - Page 1
Forum section: electronics / projects

author: maxwell3e10
author_rank: Frequent Contributor
timestamp: September 17, 2020, 08:14:43 pm
content: I am wondering if someone makes a short rigid banana male-to-male plug adapter? Can't seem to find any such thing.

author: jpb
author_rank: Super Contributor
timestamp: September 17, 2020, 08:59:04 pm
content: I don't know - but one option might be to use circuit board (screw) mounted ones back to back - though this might be too long.Attached are photos of rather long ones but shorter ones might be available.

author: jpb
author_rank: Super Contributor
timestamp: September 17, 2020, 09:07:19 pm
content: here is a short Pomona one at Digikey:https://www.digikey.co.uk/product-detail/en/pomona-electronics/3265/501-1653-ND/736472with a short length of threaded rod (I'm not sure of the correct term) you could screw a couple back to back.A long grub screw could do the jobSomething like :https://www.accu.co.uk/en/cup-point-set-screws/31056-SSU-6-32-1-2-A2i.e. replace the two 6-32 x 0.25" screws with a single 6-32 x 0.5" grub screw, screw it in one and then screw the other onto it (with perhaps lots of locktite !)

author: maxwell3e10
author_rank: Frequent Contributor
timestamp: September 17, 2020, 09:36:19 pm
content: Thanks. This would be a way to make it. I was surprised an adapter like this doesn't exist. There is a female-female adapter Pomona 6252 but not a male-male.

author: jpb
author_rank: Super Contributor
timestamp: September 18, 2020, 07:47:25 am
content: Quote from: maxwell3e10 on September 17, 2020, 09:36:19 pmI guess the female-female version has the obvious use of extending/joining patch leads - most banana plug sockets are on instruments/power supplies and joining them with a straight male-male would require the sockets to line up (probably OK given the standard spacing) but would also leave them face-to-face which is not convenient for reading screens. So there is probably very little demand for male-male straight.If you didn't need straight then there are shorting bars which are male-male-u-shape.Otherwise very thick copper wire with standard banana plugs on both ends might be simpler than my grub screw solution (but less rigid).

author: jpb
author_rank: Super Contributor
timestamp: September 18, 2020, 07:49:56 am
content: I've just found thesehttps://www.ebay.com/itm/No-Wires-1-4MM-Male-to-4MM-Male-Bullet-Banana-Plug-Adapter-/231567277732and a cheaper version:https://www.ebay.com/itm/No-Wires-4MM-Male-to-4MM-Male-Bullet-Banana-Plug-Adapter-for-RC/274473701321so they do exist!

author: maxwell3e10
author_rank: Frequent Contributor
timestamp: September 18, 2020, 08:51:40 am
content: Oh, cool, thanks! I searched briefly on e-bay but didn't find anything besides a male-to-male mains plugThis is for adding little signal-conditioning boxes in front of an instrument, since its easy to find panel-mounted female jacks, but not male ones.

author: jpb
author_rank: Super Contributor
timestamp: September 28, 2020, 03:52:42 pm
content: I'm glad you got me thinking about these things. I've just ordered myself some because I realise that they will be useful for joining some very high value resistor boxes (home made) that I have - they have a 4mm socket each end - so I'll be able (I hope) to neatly plug a 3 Gohm to a 5 Gohm to make 8 Gohm without excessive cables.