which brand magnet wire is considered the highest quality, Belden seems to come recommended, any others would be appreciated...
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Good morning I have been browsing this forum for quite sometime finding very valuable information, but now I have a question of my own.
The very basic principles of RC HPF's tell us that all else e...
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Hi.
We are developing a system of RF tags for open space storage place. This are mostly containers. I need to make simulation of collisions in simultaneous Tag's transmission. Let's say I need 10 Tag...
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Im new to electronics and the whole concept of AC current is making my brain hurt.
From what I've gathered AC current unlike DC moves back and forth. The electrons dont just flow straight around th...
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I was reading there that if you apply an electromotive force of 1 vole to a wire with a resistance of 1 ohm it will cause a current of 1 ampere to flow.
If I was to obtain a wire with no resistance...
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Any good online pdf files or websites with examples on how to draw bode plots?...
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Hi Guys..
I am try building a circuit which involves with a AD9854 DDS(Direct Digital Synthesis) chip to generate a frequency controlable sine wave for me...
The problem for me is that the Maste...
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Does anyone know where I can find a flat tiny speaker, lets say for arguments sake roughly the size of a quarter, that can produce a reasonably loud audible tone?
Thanks!
Ted...
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I'm trying to devise some circuits to measure Ciss, Coss, and Crss for an n-channel JFET, and I'm running into trouble. I know these measurements are made all the time, but can't find any information ...
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Ok -- My lawn mower has a lame kill switch that creates a ground to the chassis when the handle is released. I am on my third switch and I am sick of tearing it apart to replace it.
I want to rep...
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Hi everybody
I found freeware EEGLab toolbox for Matlab, I want to know if anyone has used it and if it works properly....
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If I want to find out the current drawn by a power supply when no load is placed on it. It isn't obvious what this is in the datasheet, but under Safety, Regulartory, and EMI regulations, it does ment...
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I have a digital signal from EEG recording. I need to filter 50 Hz frequencies and 0.5 to 120 Hz, so I've tried this:
1. I designed a notch filter with Matlab.
2. I used fft to transform the signal ...
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While working on an example in my Circuit Analysis textbook, I came upon the following circuit: A 9v battery is connected to a resistor R1 (this is the left loop of the circuit). It is also connected ...
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Hey guys
Basically im doing exam revision and the lecture notes ( and the lecturer) arent that great so i was wondering if you guys could point me to some good resources, specifically those pertain...
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I plan to use two electromagnets (With a magnetic core) to make a magnet move back and forth on a rail. I plan to place the two electromagnets on the both the ends of the rail. The travel length of th...
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could someone explain in layman's terms hysteresis, and why this would contribute to heat in electromagnets...
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i have attached the cct diagram i found about this IC BA5417
it is a power amplifier
as one can see pins 11 & 12 are input but how exactly does on give this input
i plan to give input from ...
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http://upload.wikimedia.org/wikipedi...sla_coil_3.svg [http://upload.wikimedia.org/wikipedia/commons/1/10/Tesla_coil_3.svg]>
theres no image tags on this forum?
but yea what happens in this circ...
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I'm looking for some sort of wireless data transfer and I need it to be very focused.
I need something similar to a TV remote, very directional, fairly long range. I'd like it to be as precise as ...
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I will keep this brief a tattoo machine is basically an old fashioned doorbell. to coils wired together with a resistance of 2 ohms, generally a 47uf 50v electrolytic axial capactior. the contact is a...
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I would appreciate some practical advice on a problem I'm having with a project I'm working on.
I have implemented a simple voltage adding circuit using an op-amp. (see http://homepages.which.net/...
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Hi everybody,
I'm a freshman and i want to study signals and systems.
so i'm seeking for a good introductory book. I've heard
about the book "Signals and Systems" written by Oppenheim ...
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Hi
The following question is from Oppenheim/Wilsky/Nawab chapter 1.
Consider a periodic signal
LaTeX Source CodeThe following code was used to generate this LaTeX image:[tex]x(t) = 1[/tex]LaT...
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Hey all,
I posted this [http://www.physicsforums.com/showthread.php?t=126850]> thread just under a year ago, but I never followed up with replies. But I've suddenly become interested in finishing i...
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