| Mains adapter for digital camera. |
I've just bought a used Fujifilm S3500 camera without the mains adapter which the manual specifies as a 5V unit. From where I live, it would be easier to make my own 5V power supply than to ...
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| First shot with a scope |
I consider myself a pretty much novice in the world of electronics, and I've never used a scope before so I bought a used one and got it yesterday. It's in very good condition, but I have ...
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| noisy tektronix 465 |
Hi, I recently purchased a used tektronix 465 scope off eBay and when I turn it on it makes a pretty loud noise. The best way I can describe the noise is as a fairly loud grinding...
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| Rewinding microwave oven transformer |
I am thinking of rewinding an old microwave oven transformer to drive a car amp to produce some bass in my bedroom. The amp will continuously draw about 30A and will draw a surge current of ...
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| Red/green bi-color LED mcd ratings |
I was reading the specs on a bunch of red/green (diffuse white when off) bi-color LEDs (real party animal I am). I noticed that the standard was for about a 4x higher 'mcd' brightness ratin...
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| [Battery] Questions |
Hello, I'm not sure if I can ask this here but I'm sure someone will kno I am looking at this product a an option for an Ipod Video for extr power http://catalog.belkin...
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| How can I measure jitter? |
How can I measure jitter? I have to measure Bluetooth jitter, could you please advice the device and method... Best regards, Boki.
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| RF Front end for a ADC |
Hello, I like to do build or buy an RF front end for an ADC to be able to capture RF signal and process with them. Perfectly I like to cover the frequency r...
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| How to count zeros in registers? |
Hi all, reg[7:0] register; The register contains data like [0 0 0 1 0 1 0 1] And I want to know the number of the zeros before the first 1 (in this example is 3 zeros). ...
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| handheld dictionary help |
I would like to build an embedded system, I have limited experienc with an hc11 microcontroller, but I have good c,c++,java,assembl skills. I would like to build a hand held electronic dicti...
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| Residual AM and PM? |
Hi all, I cannot seem to find any strong explanations for "residual AM", "residual PM", and "residual FM" in any of my electronic's books or Online. What are the causes and ...
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| polar vs nonpolar capacitors |
I am interested in upgrading some audio components, and a lot of DIY tweak mention "replace the electrolytics in the signal path with Black Gate or other low-noise nonpolar capacitors." I k...
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| Helping Forum on electronic and engineering on www.etantonio.it/en |
Hello all, I want to signal 5 years of notes of Electronic Engineering at the University of Rome Tor Vergata proposed to you in the shape of questionnaire with answers, I spend rea...
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| Op Amp Hookup Help Please |
I'm not an experienced electronics person, and so have a "stupid question". I have a device that provides an "on" signal intermittently at 2.7 volts DC. When the "on" of 2.7 volts ...
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| 240vac xformer and tube amp |
I've been in electronics a long time but it's been years since I've messed with tube stuff but I thought I "may" build a small guitar (practice) amp. First question is... H...
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| Portable Polaroid DVD - PDM-0711 |
My portable Polaroid DVD model PDM-0711, was working very well. After attending some film, appeared a transparent red layer covering about 75% of the screen. What it can be to happen? <...
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| help me in searching a good project |
i has to make a project till march2006 ,i request u to please help me and guide me on my project selection i am good at analog but weak in commincation subject so i want a project in which l...
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| Pesky Christmas lights |
I have a question about two Christmas star lights that go on top the Christmas tree. Each star has 11 lights and take 12 volt bulbs. The instructions for the gold star specifically state tha...
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| can computer can be made 10000times smaller |
if a atom is taken as referanca to store bits as u know atom's valance shells have electrons so these electrons can behave as wavs as be de-Brogliee Law any matter have wave as well as ...
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| can computer can be made 10000times smaller |
if a atom is taken as referanca to store bits as u know atom's valance shells have electrons so these electrons can behave as wavs as be de-Brogliee Law any matter have wave as well as ...
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| can computer can be made 10000times smaller |
if a atom is taken as referanca to store bits as u know atom's valance shells have electrons so these electrons can behave as wavs as be de-Brogliee Law any matter have wave as well as ...
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| can computer can be made 10000times smaller |
if a atom is taken as referanca to store bits as u know atom's valance shells have electrons so these electrons can behave as wavs as be de-Brogliee Law any matter have wave as well as ...
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| Electronic/Homebrew Podcast |
SOLDERSMOKE! A PODCAST FOR HOMEBREWERS! Tired of listening to Led Zepplin or NPR on your I-Pod? Wouldn't you prefer some electronics tech talk? Mike, in Ju...
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| Desoldering: Thin layer of solder left on pads |
Hi, I'm not sure if this is a problem or not. When I desolder resistors from a PCB, the desoldering wick sucks up enough solder to remove the resistors, but leaves a thin layer o...
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| direct current loss per foot of wire |
I can't seem to find an answer to this question anywhere, So I've come to the experts. I need to power a device that requires 500ma of 12v dc current, but it has to be 200 feet away from...
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| I miss the basic books |
I grew up in the 60's. Back in the '50's there were books written about basic electricity by big corporations, like AT&T, GM and GE, for the "ordinary Joe." The big companies kn...
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| thinking of exploring digital electronics |
hi all i recently had the chance to program a microcontroller, and i was really fascinated by the idea that there's a whole computer inside that tiny chip. now i'm thinking i migh...
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| Simple audio band-pass filters with sharp cut-offs |
I want to split an audio signal into 5 bands by frequency range (top and bottom can be low-pass and high-pass) and send these into speakers with moderate power, say 10 watts. I can use ampl...
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| Antennas-History (What's Going On?) |
I hardly know where to start with this topic. If one picks up some of the fairly popular (available?) books on the matter, the authors invariably start throwing different types of antennas...
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| Tracking Generator |
Could someone please straighten me out. What is a tracking generator? I know they go with spectrum analyzers, and I have always just assumed they were a controlled swept oscillator or somet...
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