How wires connect to terminals and to each other; coloring and organization schemes; appropriate wire selection and installation techniques

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4
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1answer
127 views

Why does smart card antenna follow a “snake” pattern when approaching the chip?

This image is from this post which shows MasterCard plastic card being dissolved in acetone to have the circuitry extracted for further analysis (TL;DR further analysis failed because of chip ...
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 ...
1
vote
1answer
147 views

how to drill anti-rotation holes in enclosures?

I am wondering how those holes with a flat for connectors are opened in enclosures. I'd like to know how do to it when prototyping world and in production for aluminum and in plastic.
0
votes
1answer
53 views

Wiring a 5 Pin LED Switch

So my problem is that I need to wire up a 5 pin LED switch to a motor and a car battery. Seems easy enough... But I need the LED to be on at all times. That is the bit I'm getting stuck with. ...
0
votes
1answer
47 views

The right gauge wire for a 12v parallel wiring to LEDS and heat sink

enter image description here Hey guys would love your expertise on a project, I'm just a beginner on this stuff. I'm building an LED panel with a total wattage output of about 480W. My question ...
0
votes
1answer
65 views

Fixing a headset, TRRS [closed]

First of all I'm not sure if this is the correct site for this question but: I am trying to fix a head phone jack for my headset with a TRRS headphone replacement. This is the connections of the ...
0
votes
1answer
38 views

Wire size for battery interconnects

I'm putting together a bank of 3 batteries, connected in parallel for use in a solar PV system. The primary load will come from a 1000W inverter (2000w surge). The inverter manual recommends using a ...
-1
votes
1answer
68 views

Transistor PWM Switch H-Bridge

Update from old post I have made a completely different design and was wondering if you guys could take a look. Schematics: http://imgur.com/a/5GRe5 Description: Figure 1 is a charge pump, boosting ...
3
votes
2answers
81 views

How to power a button's LED within a guitar?

I'm working on a guitar, and the plan is to use three latching push buttons so that each pickup can be turned on and off individually. I'm fairly confident that the following diagram should work for ...
0
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0answers
24 views

Bypassing Old Thermostat for heating - UK [migrated]

I have a Smart Thermostat installed called Tado, with a pretty standard UK heating and hot water set up. In my airing cupboard there was a timer that controlled when the hot water and heating was to ...
0
votes
1answer
53 views

Which one of these 5 pin 3 phase connectors is more standard? [closed]

Images: http://imgur.com/a/BItbR One is rated 16A "Dafr-164m" and another is rated 32A "Typ 2" We have a 16A breaker quite a ways from our house ~50m. We asked someone and they said they use both. We ...
0
votes
1answer
39 views

Wireless Induction coil wired to USB

I'm not an electrical engineer so forgive any obvious ignorance that may be unwittingly baked into the question. Background: My kids have these Disney Infinity Light FX figures that, now that ...
3
votes
1answer
80 views

Replacing screw terminal

I have a robot using the following screw terminal : On the input side 2x 8 awg wires coming from the battery, on the other side 2 x 3 wires for 2 motor drivers and 1 step-down that power a single ...
0
votes
1answer
35 views

How can I determine the the Wiring Configuration of an LVDT sensor?

I have an LVDT Sensor for measuring linear displacement similar to the one on the picture. The problem is that I don't have the manufacturer's wiring diagram and they don't provide it cause originally ...
-7
votes
2answers
48 views

Single Line Binary Decoder

How would I implement a single line binary decoder. Table: Input Output1 Output2 0 1 0 1 0 1 It also looks as if a flip flop would ...
-1
votes
2answers
95 views

Adding an on/off switch to an USB charger [closed]

I was wondering if it is possible to wire an on/off switch into the cable of a wall-wart USB power charger as easily as it is to wire an on/off switch into a regular power cable? Or are there ...
0
votes
1answer
115 views

How to rewire a LVDS Cable?

I have a samsung LTN154X3-L03 LCD screen from an old laptop. And I was trying to use it as a second display. I bought the t.vst59.031 lcd controler board. The problem is that this board doesn't come ...
0
votes
1answer
82 views

A tidy and safe way to bundle wires and connect them to terminal posts?

I am building a power supply using an ATX powersupply. There are several wires for each: red for +5V, Yellow for +12V ans so on. The instructions I've seen instruct you to bundle the same colored ...
0
votes
0answers
62 views

Regarding effects of improper wiring in PC

Have found a situation with a consumer (enthusiast-level) motherboard with a 12v DC fan hand-spliced to a 3/4-pin fan header. (The header can operate as 3-pin with voltage modulation, or as a 4-pin ...
0
votes
2answers
104 views

XLR to Microphone wiring

I have an XLR cable that I am trying to wire directly to a microphone that did have a Micro XLR connected to it. I have cut the male micro XLR's from each side and am left with the following wires - ...
2
votes
1answer
237 views

Xbox one power adapter wiring - converting it to a 12 volt power supply

Thanks for having a look at my question. I know this may seem like an odd question but here is the history of it. I have a Solidoodle 4 3D printer, Its powered by a knock off xbox 360 brick adapter ...
0
votes
1answer
44 views

Power single device from two circuits

I am creating a closed loop gycol heating/cooling system for beer fermentation and lagering. The system uses a ITC-1000 temperature controller and two power supplies to feed a heating circuit and a ...
1
vote
1answer
40 views

What kind of load do US thermostat control signals drive?

This page has some really good information on heating system wiring in America. One thing I can't tell from it though, is what exactly the 24VAC call-for-heat and call-for-cool signals drive. ...
12
votes
5answers
1k views

Anything special to consider when running a 12v “Bus” throughout my house?

I've recently begun playing a lot with tiny programmable computers/controllers (like the Raspberry Pi and the Arduino), and I'm planning to distribute several throughout my house as various sensors. ...
0
votes
1answer
43 views

Can you run wires to an inductive heating coil or will that be a bad idea and why?

I have an inductive heating circuit that runs at around 5A at 24V (I'm estimating here). Is it possible to place the inductive heating coil a distance away from the circuit and connect the circuit to ...
1
vote
1answer
31 views

What is a good wiring configuration to minimize noise on an analog DC signal? [closed]

I am measuring a photodiode with a high precision ADC, but they are currently 0.5-1m apart. The voltage will be constant. I would like to take the measurements as quick as possible so it would be good ...
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 ...
0
votes
2answers
99 views

Angle of wiring

I´m relativ new to PCB designing and therefore I have two questions. I started to design a simple 1-Layer PCB with a circular shape. In the Internet I found that a wire must not be "too long" ...
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votes
1answer
34 views

Spliced audio auxilliary cable

I spliced a wire with a headphone jack attached, the rubber cable runs two separate wires together (like speaker wire.) In one there is one coated copper wire and one uncoated copper wire. In the ...
0
votes
1answer
69 views

Is wire-wrap for components, or just special boards and pins?

Are common components suitable for wire-wrap connections? Or is wire wrap designed for a special type of pin? I just checked some resistors and diodes and found them ranging from .5-.7mm, and the ...
11
votes
3answers
404 views

Why an electrician wiring error could make a PC's USB shield be at 120V when it should be grounded

I almost had a serious electrical accident last week when I was trying to use an oscilloscope to test out a circuit a student had built. I had the scope plugged into a floor outlet, and the circuit ...
0
votes
0answers
37 views

H Bridge 555 Timer Votlage Drop

I am building the circuit presented at 4:45 in this video https://www.youtube.com/watch?v=iYafyPZ15g8 The problem is the frequency of the output of the 555 timer changes depending on the whipper but ...
1
vote
1answer
141 views

4-20mA Potentiometer to arduino questions

I've recently been messing around with the arduino uno and potentiometers. I got a potentiometer from where I work but im not sure how I should hook it up so I don't mess anything up! There are 3 ...
0
votes
2answers
85 views

How to calculate the neutral wire size of a home (department)?

I know that in electrical grid, Neutral wire is a non current carrying conductors so its cross section area is smaller than the cross section area of the live conductors. I think it has half of size ...
0
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4answers
85 views

In any electrical equipment having single ph 230 v ac supply ,if neutral and earth wire exchanged then what will be the consequence

I am handling the supply in a locomotive coach and have noticed that the neutral and earth wires have been accidentally flipped,inside the appliance(hot case) is there a problem from the safety point ...
0
votes
2answers
70 views

Connect Ring.co doorbell to Loxone controller

I've a ring.com doorbell which can be connected as shown in the diagram on the right. My goal would be to replace the chime in that diagram by something that can replace the push button in the left ...
2
votes
2answers
56 views

Making a TS cable with a 3-conductor wire

I want to make a guitar cable (standard 1/4 inch TS - tip-sleeve plugs). I have the appropriate plugs, but a 3-conductor (two leads and sleeve) wire. So I need to leave one conductor unused. What is ...
2
votes
1answer
77 views

software for wiring and designing electric panel [closed]

I need some help in designing an electric panel. I have designed some pcb's (Power, control, relays...) and I want to place all of them in a nice way (As shown in the pic. The pic is taken from https:/...
0
votes
1answer
41 views

CCFL'S wiring in a series

I’m hoping someone here can help me with a long overdue project. I’m trying to figure out how to wire multiple CCFLS to one power source + inverter... so far not much success on my own. I’m currently ...
0
votes
3answers
66 views

What fuses for 100A, 3-ph disconnects

I've been looking at 3 phase disconnects, and I'm uncertain what the rated amperage means in this context. Since each blade (phase) has its own fuse in a fusable disconnect, does that mean that for a ...
0
votes
2answers
96 views

Need advice with apartment wiring [closed]

Hello I would like to know what can happen if I connect a whole apartment that has a 12 awg internal wiring, using a 16 awg external wiring. What are the issues or dangers that I may encounter? and ...
-1
votes
1answer
72 views

Help with son's 18 V car [closed]

I need help with the wiring on my son's car. I'm trying to run 2 x front and 2 x rear #QG550 12 V 45rmp motors using independent 18 V power supplies, 18 V front and 18 V rear. I wish to keep the ...
1
vote
2answers
173 views

Wiring power supply, battery and charger for portable speaker

I'm planning to build myself a small portable speaker. I'd like to include a Li ion battery and a jack for an external 12V-ish power supply. I'd also like to add a jack that will be used to charge the ...
-3
votes
1answer
49 views

what type of modification can i use in my MCU in conjunction with my SSC32? [closed]

Hello there guys im looking for a way to connect and use a DC motor with a Servo controller such as the SSC32? now given the fact that a Servo controller or driver has 3 pins, PWR GND SIG/PULSE now ...
0
votes
3answers
162 views

Wire microswitch so state can be read from Raspberry gpio

I'm trying to check whether a series of valves (described here Can I measure if current is on or off in cable with 24v DC (in a cheap way)) are open or not. Updated question to be more specific after ...
0
votes
1answer
202 views

What does FG stand for?

I have an old 12V cooler master fan that I am converting into a fume extractor for soldering and am connecting it to a standard 12v computer power supply. I am trying to wire it and am confused about ...
0
votes
1answer
81 views

What is “mains outlet tester” (for proper wiring) in the context of US power connector standard?

I'm curious about this comment. It says what ... in the US or UK you should be able to go to a hardware store and buy an outlet tester for very little money. This is a little plastic housing ...
-2
votes
1answer
99 views

Why is wiring some LEDs in series better than wiring them all in parallel?

I noticed a lot of guides for making an LED array or matrix prefer to wire their LEDs in series first and then wire strips of leds in series in parallel. What is the benefit of this Vs wiring them all ...
0
votes
1answer
85 views

Car DRL Led wiring beginners question

I bought this relay (http://www.ebay.co.uk/itm/400972235163) and this LED DRL lights (http://www.ebay.co.uk/itm/400757922989). The questions are: Can I attach 2 led lights to this relay (as it ...
1
vote
1answer
107 views

An help with my practice: a common relay as latching relay

I'm looking for some help, since, currently, I'm “studying” the latching relays. I am aware of the fact that exists pre-made latching relays of two categories: the first one with two coils: the first ...