A length of conductive material used as a conductor of electricity.

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1answer
29 views

Controlling lights powered via mains using an 8 channel relay module [on hold]

I've come up with this schematic and I'm just wondering if this is correct. I'm using raspberry Pi GPIO pins to blink 240V 40W light bulbs using a relay module. Ignore mains for the Pi for now I ...
-1
votes
3answers
57 views

Can Copper Magnet Wire have layers in a coil?

I know Magnet Wire has a thin layer of insulation but when i make a coil, can I stack/layer the wire on top of each other or will it just perform the same with normal wire.
-1
votes
1answer
66 views

How to connect wire to a male JST connector?

I have an EL panel with wire I want to connect to my Arduino shield (Escudo Dos), but the shield has a male JST (PH) connector, so there are protruding elements from both sides. What component do I ...
-5
votes
1answer
48 views

How to tell the difference between headphone wires? [on hold]

I'm trying to fix my TRRS type headphones but I can't tell the difference between these five wires. -Blue -Red -Green -Copper (red-ish?) -Black
0
votes
0answers
5 views

What is the best way to repair these motorbike wires? [migrated]

2 of the wires on my motorbike were cut and used to hotwire it. It's been recovered and I need to permanently connect these back together. What would be the best and easiest way to do this? An image ...
7
votes
5answers
347 views

Does oxidized copper conduct electricity?

When the surface of copper turns that greenish oxidized color, does the resistance to current flow increase or isn't affected? For instance if the point of contact is secure and clean but bare ...
0
votes
1answer
68 views

Current increases when circuit resistance is increased while measuring black box device power consumption

The circuit is powered with 3V a battery and contains a black box device who's power consumption we're measuring with a shunt. The rated required voltage for the device is 3V. Whit a 1 Ohm shunt, the ...
-4
votes
2answers
110 views

What is the metallic coating on these stranded copper wires?

The 5-colored wires's strands looks like aluminium, but it is basically copper wire at centre, with a thin conductive coating (my teacher shown it to me) of silvery-color, so that the copper doesn't ...
0
votes
0answers
39 views

Wiresize required for air conditioner of 1.5 tonne is 2.5 sq mm will work? [migrated]

My home has copper wire of 2.5 sq mm fitted with 15 Ampere plugs for running appliance. All wires are connected to main electricity meter with max distance (i think it is required) of 40 foots/feets. ...
0
votes
1answer
67 views

6 wire transformer

I have a transformer that is rather unusual. My issue is I have no Idea what wire does what. It is a 6 wire transformer. On one side we have one white and one back. On the other side we have one white,...
1
vote
1answer
51 views

Plug from laptop AC adapter was broke [closed]

When I tried to plug my AC adapter was broke. Here you can see it: It's only the wire so I can replace it without any problem from my AC adapter. But my question is: Can I use any wire (while it ...
-3
votes
1answer
111 views

How do I solder this red part in PCB?

I am making an arcade stick. I was making good progress on the right hand side but now stuck on this red circle bit. For the RHS I had this socket(?) that I can put solder on easily But this red ...
0
votes
1answer
81 views

Best way to solder connections between header posts?

I have a project that uses about 200 solderless jumper wires connecting header posts from one circuit board to the next. Now that the whole thing works, I want to ditch the "temporary" connections in ...
1
vote
1answer
44 views

Magnet Wire AWG?

I need some magnet wire for a school project, it will be wrapped around a ~5cm nail and powered by either a 9v or a couple AA batteries. It won't be doing any heavy lifting or anything, just some ...
0
votes
0answers
41 views

Simple Question: Wire Size For Breadboard? [duplicate]

What size wire should i buy for breadboard? I have jumper cables for arduino but i want custom length so solid copper wire is the way to go. I found quite a lot on ebay and I am wondering should i buy ...
1
vote
0answers
41 views

eagle doesn't seem routing correctly

I'm trying to hand route my pcb on Eagle, but the yellow wires don't hide what could be the problem ?
0
votes
1answer
55 views

How to “frankenstine” wires?

How do I make a different usb wire type out of two different usb wires? For example, say I have two standard usb-to-micro-usb wires and I want to make one usb-to-usb and then one micro-usb-to-micro-...
0
votes
2answers
57 views

Connecting and soldering audio cable of several earbuds, but none is working

I have about 10 sets of earbuds accumulated over the years, where just one of the two is working or the jack is broken, so I thought to try to fix them. I've tried mixing several of them, in example ...
1
vote
2answers
43 views

TYPE-K Thermocouple wire to a thermistor

I have thermocouples and thermistors on my job measuring temps. I accidently ran type k thermocouple wire to my thermistors. I am wondering if they will still read accurately or if I need to replace ...
0
votes
4answers
124 views

How to connect sensors to PCB in bulk?

While it is easy to bulk produce PCB's with sensors attached directly on the PCB how do you bulk produce PCB's that area attached with a length of wire (up to 1.5m) to sensors? One solution would be ...
0
votes
1answer
64 views

How do I deal with very small wire which is too narrow to fit properly into a breadboard?

I've gutted a casio keyboard to design my own version of an electronic keyboard and am using the circuit board that originally was used by the keyboard as its keyboard matrix. The issue is that the ...
-1
votes
1answer
35 views

Can I use a power cord from a computer for an amp [closed]

I rented an amp for a keyboard but didn't take the power cord. I'm pretty sure a regular computer or computer monitor cord will fit. Is it safe? The amp says on it 175 watts. Also I have a power cord ...
0
votes
1answer
90 views

Current carrying capability of 30AWG

I want to find the amount of current that can be carried by a wire. The first step is checking out the AWG rating of the wire. It states 30AWG. Now, I checked out the table from this link - AWG link. ...
0
votes
1answer
61 views

Make a wire thicker will work to avoid overheat?

I'm new to this community and it's a pleasure to start rolling in it! I have a simple question in regards to wire overheat that I hope you guys help me to solve, any help is deeply appreciated =) I ...
1
vote
2answers
54 views

How to attach a jumper wire to rotary encoder pins?

I need to attach a rotary encoder to an arduino. The rotary encoder has 3 metal prongs that I need to attach wires to. This picture explains exactly what I need: What type of wire attachment is ...
0
votes
2answers
55 views

Reommended wire gauge for prototype boards?

What gauge of solid wire is recommended for wiring on prototype boards?
0
votes
2answers
50 views

Small Wire gauges

I would like to determine the wire gauge of small, Cu, multi-strand wire. Between 18 and 32 AWG. I can count the # of strands and measure the diameter of the wire strands with a micrometer. But what I ...
0
votes
1answer
41 views

What type of wire should be used for 230 v ac while using this relay

I want to drive a 230v bulb with the help of a relay, so I soldered a 5v relay on a perforated board with a transistor driver circuit which is working perfectly fine. The relay I am using is HL JQC-...
0
votes
2answers
291 views

Is higher or lower resistance wire able to heat up more? Are there other factors?

Why is it that low resistance wire in vaporizers are considered to product more heat, yet for my engineering project thin high resistance chromium wire seems to heat up most? According to P = IV and ...
0
votes
1answer
90 views

Are low ESR SMD capacitors with jumper wires between their legs and the circuit OK?

I have a board with two super low ESR SMD electrolytic capacitors which came off the switching power supply of a notebook motherboard. The legs of the capacitor are still soldered on the board. One of ...
0
votes
2answers
97 views

How to secure flimsy wires from RGB LED strip in Arduino Uno breadboard?

I just purchased an RGB LED strip to make my first 'non arduino starter kit project'. It has red, green and blue wires coming from the end of it, which I am trying to put in the breadboard sockets ...
1
vote
3answers
80 views

Soldering error with wire

I was soldering a magnet wire with a normal copper wire, and while doing that, i burned a small part of the magnet wire, so will this affect the conductance of the wire??
3
votes
4answers
883 views

How much binary data is transmitted across a physical wire in one clock cycle?

How much voltage change, what I'm calling binary data, can be transmitted over a wire at one time in one clock cycle? I understand, I think, binary data is what we call it and the wire doesn't really ...
3
votes
3answers
169 views

Is a screw or push-in terminal better for vibrating environment?

I need to decide what connector to use on my PCB to connect low power wires. Among the available options on Farnell/Mouser etc. The price and size are almost similar. I wonder if using a screw ...
1
vote
1answer
59 views

8 AWG Used for High Amperage Welding?

I've recently seen a homemade AC stick welder that was using 8 AWG wire for the stinger (the electrode holder) and the ground clamp. The voltage and amperage was around 30V at 200A. According to ...
3
votes
3answers
213 views

Jumper wire for thin connector pin / holes

I have a board with a Samtec SFM-115-L2-S-D-LC connector. This connector has 30 (15*2) pin holes, with a 0.050" / 1.27mm pitch, and accepts pins that are smaller than those used in breadboard / ...
-1
votes
1answer
60 views

What rating should a spade electrical connector have to power an eTopxizu 12v Dc 30a 360w Regulated Switching Power Supply from a US wall outlet?

I'm looking to power a Prusia i3 3D printer with RAMPS 1.4 from an eTopxizu Dc 30A 360 W Regulated Switching Power Supply, at the moment I'm looking at how to connect it (safely) to a United States ...
0
votes
1answer
79 views

Transistor with emitter attached to another transistor's base

I made a circuit that looks something like this: simulate this circuit – Schematic created using CircuitLab If I touch the loose wire with my finger, the LED will light up. Could someone ...
0
votes
3answers
211 views

Help me identify this audio connector on a turntable

I have recently purchased a West German NECKERMAN 830 record player (1960s), which requires a separate set of speakers for audio output. Could somebody tell me the technical name for this cable so ...
0
votes
2answers
108 views

Wire gage - Distance - Doubling - DC/AC

Introduction: I'm in the alarm industrie and there is something we all do but I never questioned my self if it is good or not. Recently, some guy from the technical support department of honeywell ...
0
votes
1answer
51 views

Using thin wire with a breadboard [duplicate]

I want to insert a wire into my breadboard for prototyping, however the wire is thin so it folds and frays when I try to push it into an open slot. Is there a particular type of pin I need to use in ...
0
votes
1answer
2k views

How to choose wire size for an air conditioner?

There is a difference between my calculations and what electricians say. Am I missing something? If I need to install a 3 horsepower air conditioner. Electricians always choose wires that are more ...
1
vote
1answer
99 views

Actuating a horn

I recently tried to sound a horn (the type normally used in cars) using a 12V battery. The problem is that that, if I directly connect the horn's terminals to the battery, it works perfectly fine. But ...
8
votes
2answers
190 views

Minimum wire gauge with vibration

I've heard that there is effectively a minimum wire size for vibrating environments. In other words, when designing wires that will experience vibration (in my case, an automobile), it's recommended ...
0
votes
3answers
202 views

What are all the multiple pins on PSU connectors for? How does a 24-pin MB connector work exactly?

I'm looking to learn more about power requirements and such that a Power Supply/Computer work with. I see this image and it has a lot of different pin layouts for various things and such. For a ...
0
votes
1answer
63 views

Meaning of marking on LCD CCL power connector?

What does this marking mean on a cable connector for two wires: Edit The connection comes from the LM170E03 LCD Screen from Phillips. It is the connectors for the power source for the backlight in ...
2
votes
2answers
125 views

PCB component-less debug port suggestions [closed]

I need around 8 connections in a PCB I'm designing for debug and on board programming. Originally I had this debug connection's footprint as a simple single in line with headers: http://www.jameco.com/...
3
votes
1answer
644 views

How to branch wire?

I have thick 16 gauge wire coming from the main power supply that needs to branch out and power several 8x8 LED boards. Each LED board requires only 22 gauge wire for the current it draws. I would ...
1
vote
1answer
68 views

Help identifying component

Sorry if this is not a question in the classical sense of stack exchange. What is the cap that locks the wires called in the attached picture? I've not been able to identifying them with a fair bit ...
0
votes
1answer
49 views

Heating Surface

I'm working on a school project, which entails heating a polycarbonate surface to melt a small amount of snow accumulation on top of it. The polycarbonate surface is 2 ft x 2ft. Our original concept ...