Questions tagged [wiring]
How wires connect to terminals and to each other; coloring and organization schemes; appropriate wire selection and installation techniques
1,104
questions
0
votes
1
answer
53
views
wiring a "prewired" humbucker guitar pickup [closed]
I'm not sure if this qualifies as electrical engineering, perhaps only in the most basic sense, but then it should be an easy question to answer.
Anyway, so I'm building a cigar box guitar. Eventually ...
0
votes
0
answers
17
views
Cannot figure out wiring for CamJam EduKit 3 with Pico WH
I am trying to build this kit using a Pico WH instead of a regular Pi but cannot get the wiring correct at all. I found the pin layout for the motor controller board but I am not sure if I am using ...
0
votes
1
answer
54
views
Active pickup Guitar Wiring
So I have a guitar with EMG active pickups powered by a 9 V battery. I've been using two 23ae batteries outputting 24 V with it, but I want the ability to switch between 9 V and 24 V without taking ...
1
vote
4
answers
110
views
Soldering iron melts solder on direct contact but not when trying to solder two wires
This is my first "big boy" attempt at soldering.
I'm trying to solder two relatively thin DC wires. Everything I got is cheap from AliExpress. Soldering iron is a 80W simple piece that came ...
- 119
0
votes
0
answers
30
views
LVDS 30 pin cable matching
I have an LCD screen with a 30 pin LVDS connector. I have attached a table with the correct pin assignments, however I am unsure of how to match up the cables. LCD model: G150XVN01
There are only 24 ...
1
vote
1
answer
43
views
Surge Protection Device installation and MCB [closed]
On LSP's website there's this wiring diagram for a single-phase surge protector in a sub-distribution box (Type 2). The SPD is the gray device:
Could someone explain the purpose of the MCB inside the ...
- 11
0
votes
1
answer
81
views
Passing an AC voltage to a set of copper pipes (Paul trap)
I and a few other students at my university are constructing a linear ion trap as a summer project. It'll be used for outreach and science demonstrations, so the charged particles we'll be trapping ...
1
vote
1
answer
95
views
How does this 230/400 V induction hob draw current? [closed]
The instructions that came with a new Electrolux EIS62441 induction hob didn't specify any recommended breaker sizes or supply cable cross section requirements. The hob comes with more than 1 m of ...
- 13
0
votes
1
answer
65
views
How can I make an adapter wiring for a TRRS microphone to TRS?
I'm making a sound level meter using a Raspberry Pi as part of my thesis. My professor has given me a TRRS microphone to work with.
I tried to make the TRRS microphone work with the Raspberry Pi ...
2
votes
1
answer
74
views
I'm trying to wire this motor I have, but I'm not sure how to read this diagram
This motor is 110V or 220V. I'm trying to wire it up for 110 but I'm not 100% sure how. Is low std 110V and high 220V?
I believe I need to connect 1,3,8 to hot and 2,4,5 to neutral and ground to the ...
- 21
1
vote
0
answers
69
views
rotary phase converter
I'm having issues with a 10 hp motor for a rotary phase converter. There were no labels on the motor wires, so I had to use this VIDEO to help me identify them, assuming that is the correct winding ...
- 11
1
vote
1
answer
83
views
What is this symbol? I found this on the panel of a circuit breaker setup?
I found this symbol in a wiring diagram on an old distribution panel door. What does that cross line on the wire means?
Is it a wire tap on the line?
Certainly, the diagram used the sine wave symbol ...
- 25
0
votes
3
answers
81
views
Trying to T-tap wires of different gauges. Do these t-connectors even exist?
I am new to wiring and need help with a new project.
I have a big box. On two sides of the box are 40 LED light strips; each light strip with a positive and negative wire. Theres a total of 80 LED ...
1
vote
0
answers
44
views
Ring Video Doorbell / ghost rings with 16 VAC solenoid chimes [closed]
I have:
Ring Video Doorbell
(x4) solenoid chime operating on 16 VAC
The chime is a pre-2000's analog device. Presumably it uses an analog circuit to ring the solenoids in a pattern to make a ...
- 137
0
votes
2
answers
88
views
Power Supply Double Output +12 V -12 V
I’m checking this power supply.
But it works to supply the diagram I attach?
The situation is because I see in the diagram is required -12 V and +12 V, then I don’t know exactly: if what I need is ...
- 103
0
votes
2
answers
160
views
Best way to get 80 wires down to 1? Is it even possible? [closed]
I'm new to working with power supplies but I'm planning on using two switching 24 V/40 A/960 W power supplies connected parallel. This power needs to connect to around 160 wires, 80 on each side of a ...
1
vote
0
answers
83
views
Is there "polarity" with a G10q lamp base?
I'm replacing an FC8-T9 fluorescent bulb with a new bypass LED bulb. I found instructions which say to remove the ballast and connect the black wires on the G10q connector to the line (black) and the ...
- 201
0
votes
1
answer
51
views
How to replace microjack on stereo earplugs with microphone [closed]
I broke a microjack connector. It is attached to a set of stereo earplugs with built in microphone. I know how to solder, but I am not sure how to find the correct replacement plug and how to identify ...
- 103
1
vote
1
answer
82
views
How to determine whether an FPC cable or connector is 1.25mm or 1.27mm pitch?
I'm building an LCD display test harness on a perf board. I'm looking for a solution for connecting an 14 pin FPC/FFC cable to a 2.54mm perf board. Unfortunately, even with a digital caliper, it's ...
- 2,397
1
vote
1
answer
88
views
Building a DIY BGA Rework Machine
simulate this circuit – Schematic created using CircuitLab
I am trying to build a DIY BGA reflow machine. I have a very crude schematic, but the idea is run each of the 6 heating elements in ...
- 11
1
vote
1
answer
61
views
Can someone help me with a LED light fixture puzzlement? [closed]
I have been buying and using LED bulbs from the Dollar Tree for many years.
I have never had an issue with them in the past. Just the occasional burn out in my home office fixture because it stays on ...
- 41
0
votes
1
answer
41
views
making a long lasting battery pack for 24V/0.5A
I brought a stereo equipment from Japan that uses a wall-wart set at 24V/0.5A.
I would like to replace the PS with a long-lasting battery pack, but all I can find are 12V/5A batteries, or 24V/5A. I do ...
1
vote
1
answer
48
views
Cable type selection for 128 channel signal transfer [closed]
I want to use a cable to be connected (soldered) to my PCB, my PCB has 128 pads on it as follows:
The signal that will be transfer to cable is @3 MHz to 6 MHZ, in range of 150 uA.
The width of the ...
- 948
2
votes
2
answers
378
views
A question about a possible electrical wring terminal/component
In an enclosure I have to wire several modules such as relays power supplies, PCB modules ect. But it gets messy with wirings especially if a part requires many connections at its screw terminals and ...
- 1,851
0
votes
0
answers
85
views
Wiring AC 5 Wire Motor with 4 Phases to Run at Max
I'm trying to hardwire a fan motor to always run on max. Currently, it has a circuit board that allows you to adjust the speeds and requires a bit of fiddling to turn on and set the speed when the fan ...
0
votes
1
answer
48
views
Does connecting the ground of a power source to the neutral of the lamp cause a short circuit?
Does connecting the ground of a power source to the neutral of the lamp cause a short circuit?
In other words, would either of the connections below cause a short circuit?
- 101
0
votes
1
answer
27
views
How do I properly wire an SL-510-SS pyrgeometer to measure its internal thermistor resistance?
I've acquired an SL-510-SS pyrgeometer and am having trouble wiring the internal thermistor.
The manual gives the following description:
The manual also provides the following diagram:
I've ...
- 113
1
vote
1
answer
140
views
TRS headphone jack wiring
Summary:
I have an in-ear-headphone that I am trying to replace the TRS jack for. I have tried soldering the wires to a jack a couple of times with the same no-good result. The left speaker doesn't ...
- 13
1
vote
1
answer
67
views
Wiring two TRS sockets to accept either one TRS cable or two TS cables inserted
I am looking to modify the input of a small stereo amplifier with a TRS input jack to have two TRS input jacks instead.
I want it to handle the following two scenarios.
Scenario 1.
Two TS plugs are ...
- 11
0
votes
0
answers
39
views
Running 2 small cartridge heater and 2 Solid State Relay (SSR) with 1 PID Controller
I wanted to run a heating setup that processes optical fiber for tapering and making couplers (I am in photonics). I aim to reach 810C of temperature, whereas I am getting only 780C. Currently I use:
...
0
votes
0
answers
49
views
PCB usb powered - led and screen wiring + review schematic
I'm currently designing a PCB featuring an STM32F103CBT6 MCU. The PCB will host five different groups of WS2812B LEDs, multiplexed 22 pushbuttons, 4 rotary encoders, and additionally, a VoCore 5" ...
- 11
1
vote
1
answer
130
views
Individually Addressable LED overheated
Update (19.3.24)
I checked the LED string with a multimeter. The + and - wire of the burned LEDs are connected, whereas the new LEDs do not have a connection between the + and - wires.
I checked the ...
- 11
0
votes
0
answers
60
views
Dealing with IEC and NEC wiring color code in the same equipment
I am dealing with IEC and NEC standards for wiring color codes.
For the first time, I have to integrate european (and UL certified) COTS products - power supplies - into a system for the US market. ...
- 866
0
votes
1
answer
54
views
WS2812 LED Pixel Ring 26 AWG JST
I am building a small kitchen for my child. For the hot plate I bought eight ws2812 led pixel rings: four with 8 leds and four with 16 leds. I soldered each two rings together so I have four double ...
- 3
0
votes
2
answers
134
views
Why are there two wires connected to each terminal of the RS485 port in energy meters
I want to connect the energy meters of our clients to a gateway so that the gateway can communicate with the meters using Modbus. I have visited several electrical rooms that have gateways installed ...
- 335
1
vote
1
answer
53
views
Wiring multiple photoelectric sensors to RPI 4
I am relatively new to using Raspberry Pis and wiring sensors. I am trying to wire the PM-U25 photoelectric sensor to a Raspberry Pi 4 to act as an optical resolver that tracks a shutter wheel on a ...
- 11
0
votes
1
answer
313
views
How do I wire a permanent magnet synchronous motor?
I salvaged this motor from a washing machine with a view to using it to power a bench sander in my workshop.
There are three wires red,white and blue in addition to the green/yellow ground wire.
Given ...
- 3
2
votes
2
answers
177
views
Need help with AC relay wiring
Got the following relay Taiss/AC 220V (YJ2N-LY AC 220V)
A picture and a wiring diagram are below.
Given:
AC 230v constant L input
AC 230v signal L input
N input
,
How should I wire the relay to get ...
- 125
0
votes
2
answers
46
views
New to PCB design: Does routing a wire on a 2nd layer underneath a pad connection effect cause a connection issue?
I am designing a pcb with minimal room approximately 5.5mm wide, the power supply comes from one end of the board. The top layer has pad connections that take up most of the width of the board leaving ...
3
votes
1
answer
371
views
How to connect to these terminal blocks?
I have this power supply (actually part of a control box for a robot arm) which has terminal blocks, but most of the screws seem complete inaccessible due to how closely the blocks are placed together....
- 231
0
votes
0
answers
47
views
SPICE problem: Converter V/I scheme not working properly
I'm having a small urgent problem with a project: I don't understand why, when I connect the bottom left amplifier from the 4th pin to R2 (180 Ω), Proteus crashes.
What am I doing wrong and what would ...
0
votes
0
answers
51
views
How is TN-CS safer than TN-C
Why not just run two PEN wires?
Can you explain a situation in which having wires with separate and designated PE, N functions is safer than having two PEN wires? Or is that basically where all of the ...
- 1
1
vote
1
answer
149
views
Relay with bypass switches haywire
The lamps are normally operated by relays. When the relay or relay driving circuit fails totally, the bypass switches are to be used as fail-safe to operate the lamps. The key operated switch which is ...
- 33
0
votes
2
answers
111
views
How can I wire the speaker given in this schematic? Does the light green addition show it correctly?
Taken from this video.
Will it work correctly with the speaker connected as shown in green?
- 105
0
votes
1
answer
102
views
Usage of Spanish word "Tresbolillo" in electrical distribution
I am from Spain, and in this country is very common to use the word "Tresbolillo" to designate the distribution of electrical cables but not for a stringing connection, as it says in a ...
2
votes
1
answer
119
views
What is causing half of my Christmas tree lights to go out? [closed]
I have two strands of well used Christmas tree lights with incandescent bulbs. One is red and white, the other is multicolor. Both of these strands are only illuminating half of the bulbs in the ...
- 1,418
0
votes
1
answer
90
views
Control single-phase AC motor forward and reverse with relay
I have a single-phase AC motor that I want to control with a forward/reverse motor direction controller I bought from Amazon.
The motor I have bought in Peru so I don’t have a link, however the wiring ...
1
vote
2
answers
476
views
How are these LED Christmas lights wired?
I have several light strands that I'd like to effectively seen cut in half, and make two shorter lengths out of, but I've only succeeded in seriously confusing myself so far.
The lights I'm working ...
- 11
0
votes
1
answer
36
views
Dual Input Signal Conditioners and 4-wire RTDs
I am new to electronics/sensors and am working on integrating two RTDs into a DAQ for a school project. I want to use an Omega TXDIN70 signal condition to interface between the DAQ and RTDs, as it has ...
- 1
0
votes
2
answers
386
views
Reading different CAN bus protocols with one interface
We have a system with multiple CAN bus protocols. All are running at 250 kbit/s. These are NMEA 2000, J1939, and CANopen. These systems do not have to communicate with each other, but I would like to ...
