Electronics > Projects, Designs, and Technical Stuff
Adapter Box for (all) your Lab needs
dangrie:
Hi,
I just wanted to show off and get feedback on my latest Project that I cobbled together in the last 2 Days. It is a "universal" Adapter Box that simply gives multiple connection points with the most common connector types seen in a lab environment.
The complete thing is highly inspired by the "Monsieur Adapteur" by felitek.de which appeared in EEVBlog #606. I wanted to have one, but sadly the Project is discontinued. Although all Files are available for this Project, I had some trouble sourcing some of the used components, so I spun my own.
I was surprised to not easily find 100 similar projects, so I wonder I you know of any? Also: What do you think of the Layout, Connector choice, and other design decisions? I would be happy to get some feedback before ordering the first set of Boards. Think something like this is useful?
All resources and documentation can be found on GitHub: https://github.com/dangrie158/AdapterBox/blob/master/README.md
t1d:
I think that is rather neat and well done. You might swap places, with the BNC and Banana Socket sections. This would put the tallest component in the middle, giving better access to the lower Banana Socket components.
Also, you may want to use the multi-connection type Banana Sockets. They provide more attachment options.
Both of the Banana type connectors, the single and multi, can be directly bolted to the PCB. You just need to create big pads, for the post nut to seat on and make contact. No need, for the wire washer, or soldering. I added a layer of solder, to the pad, to give it extra strength, so the nut would not scrap it off. Here's the idea...
When you are bolting on the multi-connection type Banana Sockets, raise one of the plastic nuts and insert a small screwdriver, in the post's side-hole. Tighten the plastic nut, just with very slight hand pressure. Use the screwdriver to hold the post's hole in the proper direction, to allow access, when in use. Then, tighten the securing nut. Repeat, for the other posts. You will not need the backing plate.
I am sure that you know that Banana sockets pair holes are set on 19mm centers.
Dave:
Personally, I don't see it being useful in any scenario.
If I need to connect something, I'd rather just crimp a couple of connectors onto a cable than have a bulky box sitting on my table. Most of the time you need more than 2 wires anyway.
The BNC on there seems pointless, because you're not going to maintain the characteristic impedance with this thing.
Richard Crowley:
--- Quote from: Dave on November 10, 2018, 12:37:12 pm ---If I need to connect something, I'd rather just crimp a couple of connectors onto a cable than have a bulky box sitting on my table.
--- End quote ---
With something like this, you don't have to stop and get the connectors and crimp them on.
With something like this, you don't have to waste a couple of crimp connectors for something temporary.
--- Quote ---Most of the time you need more than 2 wires anyway.
--- End quote ---
The concept is applicable to to a large number of wires.
--- Quote ---The BNC on there seems pointless, because you're not going to maintain the characteristic impedance with this thing.
--- End quote ---
If you are interfacing to banana or any of those other connectors, then impedance is not important for the experiment. Essentially by definition.
Dave:
For a quick test, I'd simply use croc clips or J-hooks.
I don't mind spending 5 minutes to crimp a couple of custom cables together, if I'm going to be using them for a day or two. You'd have to waste a lot of connectors to outweigh the cost of such adapter.
Fair point on the BNC.
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