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Questions tagged [wire]

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

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2answers
37 views

Connecting two wires to a DC 12v port on a controller board with 4 pads for a monitor

Sorry, the question was difficult to word. Basically I recently bought a controller board for a monitor and the DC cable I got wasn't correct. So until I get the right part, I just want to test the ...
2
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1answer
62 views

Splicing 24 awg wires - wire and tool selection

I'm working on a raspberry pi project - a sump pit monitor that sends an emergency email if a float switch above the point where the water triggers the pump is switched (purely for monitoring, not ...
0
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1answer
28 views

Mixing wire gauge questions

I am putting a 50W 3.4A max 12V solar panel on my camper van. I want the option of removing it from my roof racks & mounting it remotely (so I can park in shade, but still have the panel in the ...
0
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3answers
56 views

Wire size question

I am trying to figure out AWG from a European/German schematic. The wire is listed as 0,3mm. (That's 0 (comma) 3mm.) I can find wire for sale in this diameter, but I need a reference to AWG. Is ...
4
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1answer
78 views

What determines the frequency of network cable

You have Cat6, 23 AWG, rated for 250Mhz frequency. You then have Cat6a, 23 AWG, rated for 500Mhz. Both are unshielded. How is Cat6a able to transmit data at a higher frequency then its counter part? ...
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1answer
49 views

Is it possible to use the same RJ-45 connector?

Given that the wires are connected to the pins and crimped with a crimp tool; is it possible to "un-crimp" the wires such that they can be unattached from the RJ-45 connector? Whereafter the connector ...
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2answers
43 views

Closing 1s battery connector

I have a drone that can plug two 1s batteries. I have the option the plug only one battery but I need to "close" the other battery input with the following (image). I have no idea how this is called. ...
0
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2answers
77 views

How to regulate voltage of transformer output for nichrome wire

I have a basic CNC machine for cutting EPS foam which uses about 9.5in/23.5cm long straight 28 gauge Nichrome wire as the cutting element. The nichrome wire is powered independently with a 220V-36V 5A ...
2
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1answer
47 views

Wire ferrule installation woes

So, I have some 1mm2 (cataloged in the USA as 17AWG) fine strand (259 * 0.07mm) test lead wire that I am trying to adapt to Eurostyle terminal blocks (which I can then adapt to other things, such as ...
2
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0answers
75 views

Is there a limit on the current carrying capacity of a wire?

Obviously, for continuous current there is - the melting point. If it is superconducting, the field strength at which it quenches. OTOH if we specify a pulse of arbitrarily short timescale in order to ...
0
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1answer
37 views

RV Off-Grid Electrical System Wire Gauge Sizing

I'm working on building a Tesla battery powered off-grid system in our Airstream 22FB Sport. The idea is to be able to run the 120V AC system from the 5.2KV Tesla battery which is with the existing ...
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0answers
44 views

Power problems related to copper wires and pigtails

I am using a battery to power a odroid which requires 5V/4A. The battery voltage when measured using a multimeter was around 26.7. I had two setups: I used a 1 sq mm copper current carrying wire to ...
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2answers
50 views

Male/female wire connectors - How to tell AWG/mm^2 rating?

So I have a project where I will be running 20 AWG wires. Now there will be one section where I will need to connect the wires with a male/female connector. I'm having trouble identifying which ...
0
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2answers
82 views

What are the practical differences between AC and DC transmission?

I have a long (2m) but thick wire between transformer-based power supply and low frequency power amplifier. Know your best advice ahead, but no, I cant get rid of it. I can put it in two ...
0
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2answers
49 views

11.1v Lipo battery thick to thin wire connection heating up

I have a lipo battery, 11.1v, 2200mah, 20C. I needed to connect to to a smaller wire because the thing I am connecting it to has a little jst connector. So I bodgily just wired the thick wire to the ...
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2answers
56 views

Tank Water Level Indicator Wire

I am building a simple water level indicator (approx like the circuit below) for my tank. However, I am wondering about the wiring, for I suppose copper cables corrode in water and produce toxic ...
0
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1answer
73 views

Why does the self-inductance of a straight wire decrease when its radius increase?

I made some research on the self-inductance of a straight wire, and many sources cited “Inductance Calculations” of F.W. Grover. So I read a bit of that book but I couldn't find the answer to my ...
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1answer
31 views

Replacement battery voltage mismatch tolerance?

I want to try replacing a proprietary battery in an electronic of mine as a first electronics DIY project. Thing is, the stock battery is 3.6V, and the phone battery I have on hand that I would like ...
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0answers
40 views

Maximum MAX7219 wire length to LEDs?

I'm intending to make a multiplexed 128 LEDs 'ceiling light', which has LEDs randomly spread out over a 2 by 1 meter area. For this I need two MAX7219 ICs, so they can handle 64 LEDs each, where ...
0
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2answers
75 views

Using 28 AWG flat/ribbon cable for LEDs

I want to control a lot of LEDs (like 128) in an area of about 1 m2. Instead of using separate wires, could I use a 28 AWG flat cable, and split/cut it wherever needed? E.g. split it in two wire ...
0
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0answers
51 views

Need help identifying a cable

We bought a LED pendant light, and it turns out that it hangs too high for our tastes. Rather than sending it back, I figured getting a longer cable would be easy enough. (Famous last words...) ...
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3answers
118 views

What is modern fire alarm cable made of?

I'm curious about the fire alarm cable that's being installed in a new building next to my office. In the fairly distant past, I learned that fire alarm cable was "pryo" cable. Under the red jacket ...
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3answers
214 views

Transmit 7MHz analog signal from board to board

I want to transmit real passband analog single ended signal with bandwidth, 0 to 7.3MHz, from board to other board. distance from these board will not be more than 15cm. what's the best choice for ...
2
votes
1answer
164 views

DHT22 bad readings on long rj45 cable

Duplicate of https://raspberrypi.stackexchange.com/questions/91781/dht22-bad-readings-on-long-cable, I figured there is chances people here have a solution for me. Hi, I'm preparing a setup with a ...
0
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1answer
63 views

How does distance between parallel batteries affect voltage drop/required wire thickness?

I'm looking to wire up an off-grid system. What I'm stuck on is battery placement. The likelihood is my batteries will need to be quite far apart (almost 2 metres). My question is how does this ...
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1answer
62 views

How can I connect these two wires? [closed]

I wanted to tinker with the microcontroller of the headphones so I cut the solder between these two wires, to stop the power supply. Now when I connect the black wire (power ground) lead to the ...
3
votes
2answers
149 views

What is the mechanism that causes two conductors to “stick together” when a current is passed?

If the positive and negative terminals of certain DC supplies are brought together under certain conditions, the wires will "stick together" with a slight force, feeling almost like they are ...
32
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9answers
11k views

Does wire color matter in electronics?

I'm fairly new to electronics here. But I can't seem to find any clear answer anywhere on the internet. Are wires special depending on their color? Or they have all the same purpose with just colors ...
5
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2answers
1k views

How to solder Christmas lights insulated wire?

I want to fix Christmas lights like these, whose wires got cut near the batteries. The LEDs near the batteries still work. I tried touching the wires from the two parts and I was surprised that the ...
0
votes
1answer
253 views

Beginner Question - Solder won't stick to a certain wire

I am trying to tin some wires as they won't stick to the IC pins that I'm soldering them to. The problem I am having is that the solder won't stick to the wire. My iron is fine as can solder other ...
1
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1answer
61 views

identify this connector - faston housing

need MFG of this connector. It is not tyco event though there are tyco fastons installed (confirmed by Tyco). 2 position faston housing. tab locks are on facing outwards. no markings on connector ...
0
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1answer
45 views

Reducing voltage for increased current through wire

I am wondering, if I reduce the voltage going through a specific sized wire, can I therefore increase the current? I am creating a series-parallel battery bank and it will output 7.4 volts at 75 amp ...
1
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1answer
30 views

What types of wire should I use to pull out from a Test Point while using Cheap Logic Analyser or Oscilloscope?

The only purpose to ask this question is I use single/multi-core thin wires that snap of in few days. I don't want that. Is there something that doesn't break? Or some other tricks/connectors or ...
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0answers
68 views

Wire connector with hole only large enough for the conductor and not the insulation jacket

I am trying to find a connector for a PCB that has an aperture sized to allow only the conductor to pass through and not the insulation jacket. I found a drawing here, see part B of drawing below ...
0
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1answer
47 views

Choice of wire diameter for doll's house?

I'm constructing a 1:12 scale doll's house and I'd like to use enamelled wire run within the walls for lighting. Each room would have its own circuit controlled through a switch and then to a common ...
0
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4answers
54 views

Wire to board connector for Test Jig

What's the best way to quickly connect/disconnect ~22 AWG wires to a test jig pcb? I would like to use a spring loaded connector that can easily release the wire after I'm done testing. Currently have ...
0
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1answer
64 views

How to prevent noninsulated wires close together during manual wiring a PCB?

Actually I have two problems, but this one is most annoying: I have like 10 wires I want to solder to the pins of a pin header (2.54 mm distance apart). Initially I kept like 5 mm of the end of each ...
0
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1answer
42 views

Current in a single terminal voltage source?

I know there can't be voltage without current, but how can I calculate the current in a wire if I only have the voltage and there is supposed to be no resistance?
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1answer
30 views

3.5mm, 4 conductor, in-line, plug

I am struggling to find pictures of the plug I bought to figure out where to connect speaker wire to. It is a TRRS 3.5mm plug ...
-2
votes
1answer
141 views

What wire gauge for use for JST-XH connectors with and without insulation?

I bought a variety kit of JST-XH connectors on ebay: The auction says: Wire Range: AWG 32-24 Insulation O.D.: 1.00mm (Max) But Wikipedia says that this connector supports AWG 30-22 and does ...
0
votes
2answers
77 views

Is it possible to hand crimp a 1mm pitch JST SH connector without a machine?

This is an offshoot of another question of mine on identifying a particular connector. When I was talking with sales representative from DigiKey they was mentioned that these crimps are done by ...
1
vote
2answers
78 views

Is it possible to wire a regular power supply cord to a sewing machine motor so I can use it for a Halloween prop? [closed]

If it is possible to wire a regular cord (power supply) to a sewing machine motor (with a motor speed controller), what volt/amp supply do I need to use?
0
votes
0answers
52 views

AT89S52 microcontroller only starts when extra 22uF capacitor touches board

I made simple code for the microcontroller that prints a simple message on the LCD once the microcontroller starts. I arranged my board so that the pull-up resistors and reset resistor (100K) and ...
2
votes
2answers
80 views

What wire to buy to extend the legs of SMD components?

I am attaching some neopixels to an art project. Rather than buy the breadboard style neopixel which is 4x as expensive, I am buying the SMD style and just soldering legs on. This worked well for a ...
0
votes
1answer
120 views

100V “rated” wire on 220V supply [closed]

I am genuinely sorry for posting such a basic, basic, basic question. Moving to Thailand (220V) from Japan (100V). You cannot buy an extension cord in Thailand that is flush to the wall. Here in ...
0
votes
2answers
54 views

Why does a End-Of-Line Voltage Drop Calc yield a different result than a Point-To-Point Calculation?

I can't grasp the concept on why these two different voltage drop calculations yield different results. They should both arrive at the same answer. In our intro EE classes when we were doing any ...
2
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2answers
81 views

Modeling a long single wire in a circuit?

I'm currently trying to make a model (equivalent circuit) of a long single wire with a resistor and inductor in series. Is this a proper way to do it? What I have done: Calculating the resistance ...
2
votes
2answers
241 views

Should I solder multiple wires together, or is there a better way?

I need to connect 10 thin single-core wires to each other permanently. They will carry at most 1A at 5V in total (100mA each). Can I just solder them together in a lump with shrink wrap tubing around? ...
0
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2answers
154 views

How to get rectangular angles for point to point wiring on a protoboard

I'm intending to solder several protoboards in a few weeks when I get all my materials. I was wondering what is the best way to keep the rectangular angles (so it looks similar to the picture below, ...
6
votes
2answers
926 views

What are these wires on single-sided PCBs? [duplicate]

I have a few questions about this PCB, namely the wires across the visible side: I am new to electronics. Would these wires be considered a "trace", "jump", a "via", or something else entirely? How ...