Electrics
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Wiring multi pin plugs and sockets
Hi. All With my latest wiring project, multi pin plug and socket, I have found it reasonably easy to solder plugs and sockets ? But to ensure that I don't get a short on my wiring, I am looking to fit "heat shrink tubing" on the very "fine"wire that is required with the small pins. The plug and socket are "d type" with 15 connections similar to the scart connections used on televisions. Does anyone know where I can purchase suiable tubing to do the job ? Please advise. All the best Kevin
Staying on the thread Kevin.
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'Petermac
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Last edit: by Passed Driver
Staying on the thread Kevin.
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Get yourself a set of headband magnifiers.
'Petermac
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Staying on the thread Kevin.
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If you want to use heat shrink check the wiring gauge, as it comes in various diameters - over here 1/32" to 2" or more. I try and keep a stock of red, black, orange and grey, plus transparent, in 1/32" to 1/8". I buy it in yard lengths. It comes in various shrink ratios, 2:1 is the most common (50%). Which is why you have to match the diameter to the diameter of the wire. Plenty of choice on Amazon or eebygum. I use the large diameter for decoder sleeves. Technical stuff, but important, as having loose heat shrink after shrinking is not good.
I occasionally solder up 8-pin DCC plugs, the trick here is to only expose a short section of wire and use that third hand to hold the plug and the wire. The heat of the solder will take the insulation back by a fair bit. Heat shrink is only used here to cover all the connections at once as a sleeve.
To see what you are doing get a lit magnifying lamp - I have one of these (with 2 clamps), which has a magnifying lens (2x and 5x), helping hands and a soldering iron sleeve
And one of these which clamps on the table (x2), which I use for kit building
And one of these which sits on the table (x2 and a small inset x5) for small projects
And one of these for really close-up work (x5 with diopter adjustment, important of you wear glasses) - decoders, sockets, motors, surface mount LEDs, i.e the small stuff. If you use one of these you really need a helping hand.
Nigel
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Staying on the thread Kevin.
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'Petermac
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Staying on the thread Kevin.
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18 strand 0.1mm diameter.
Nigel
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All the best. Kevin
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No opinion. Interesting that it says 18/0.1 but looks to be really 18/0.2 (on the label). Wire diameter/gauge would be dictated by the current required anyway.
Nigel
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Staying on the thread Kevin.
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I was looking at the web site.
18/0.1 can get confusing. 18 strands for a total of 0.1mm, or 18 strands of 0.1mm.each. The former, makes no sense, that's pretty thin stuff (about 50 gauge), If it's the latter then around 1mm diameter, which is about 18 gauge and ~2.5amp power transmission. Sounds more like it. You'll need 1.5mm heat-shrink or less, see if you can find some 1.5mm and a shrink ratio of 3:1 or 4:1 rather than 2:1. You need to be wider than the wire, soldered leads tend to wider than the individual wires.
I saw those 'oles in the bottom. Interesting way to weather the track. I think I'd cover them up with some heavy duty tape. Running in required as well. Definitely "Old School".
Nigel
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Staying on the thread Kevin.
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The ever increasing spread Of Maplins means that that is the only place you might find it locally. But I've stopped using them, as these days I find they are an expensive toy shop.
Now I've finally started a model railway…I've inherited another…
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Staying on the thread Kevin.
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18 gauge then. Perfectly OK for a small layout/plank/shelf, especially if it's a 2 amp NCE system. Not that much voltage drop over 10 feet or so. I wouldn't use this gauge with a Digitrax 5 amp setup (14 or even 12 gauge). It's too big to be a dropper, too small to carry a lot of current.
Nigel
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Hi Nigel. Thank you for your reply. The wire is only for the LED's that indicate the state of the points/turnouts, and have their own dedicated circuit and12 volt power supply. KevinHi Kevin,
18 gauge then. Perfectly OK for a small layout/plank/shelf, especially if it's a 2 amp NCE system. Not that much voltage drop over 10 feet or so. I wouldn't use this gauge with a Digitrax 5 amp setup (14 or even 12 gauge). It's too big to be a dropper, too small to carry a lot of current.
Nigel
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1mm/18 gauge wire is probably overkill for dedicated LEDs given their current draw. Easier to work with 22 gauge or even smaller wire. I can see why Max suggested ribbon wire, which at 22 gauge is used for individual LEDs. 18 gauge ribbon is used for LED lighting strips with multiple LEDs.
Nigel
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