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Engineering as a Cutting-edge Career. [4 articles]
01:37 31-05-08
Useful Engineering Websites ;
http://www.Engology.com - For School-leavers, Career-guidance
Teachers, and the General Public.
http://www.EngineerAWARDS.com - For Journalists... Read More
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Identifying a wire [6 articles]
steamer - 21:24 30-05-08
OK I'm putting an old radio in a new truck and the wiring harness
had to be slightly different. Bottom line: I've got about 5 extra wires
coming out of the radio. Now one of the... Read More
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maintaining 12 V [3 articles]
12:38 30-05-08
hi.
well i have to implement an intelligent lighting system. after
detecting the person from PIR sensors, light has to be switched on for
some time only at night time. Im using ... Read More
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potentiometer output to on/off switch [7 articles]
20:39 29-05-08
I would like to convert some output (ohm resistance?) from a
potentiometer to an on/off switch.
My electronics experience extends to being able to solder stuff...but
that's pr... Read More
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Is this safe to use in outdoor ? [8 articles]
mowhoong - 19:00 29-05-08
I noticed Electroluminescent Vinyls paste out side the taxi door for
advertisment without any protection, I remenber this kind of displays
need high ac voltage to triger. I am w... Read More
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ISD 4003 recording chip question
lerameur - 12:20 29-05-08
Hi,
Anyone with experience in the voice chip ISD4003. I saw a few post
here about it.
I wanted to know how the memory is divided. Example.
From the datasheet, the playback mo... Read More
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Crystal Radio Amplifier [8 articles]
Dave.H - 06:53 29-05-08
This may be a stupid question, but I'm about to build a crystal radio
(http://www.bobsdata.com/crystal_radio/index.html) and I want to use a
little audio amp (Cat. KC5152 @ www.j... Read More
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How to use variable power supply for charging [6 articles]
CharlesBlackstone - 23:18 28-05-08
Hi, I'm reposting this here, my previous attempt was probably in an
inappropriate place.
I bought a variable voltage variable amp power supply to use
charging my RC batteries:... Read More
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Can portable jump starter supply mobile power? [3 articles]
pixsnap@gmail.com - 23:00 28-05-08
Left over from my boating days is a 300amp portable jump starter (www.
4earlybirds.com/jump charger.jpg) Both a laptop and small hp inkjet
printer are carried in my car along wit... Read More
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solar based lighting system [5 articles]
16:18 28-05-08
hay watsup , i m in need of little help i have a project of solar
based lighting system , motin sensors are also incarporated, battery
will b charged by solar energy , if the bat... Read More
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Help Building a USB-Controlled USB Outlet? [8 articles]
16:07 28-05-08
I am a novice and would like to build a 120V AC outlet which can be switched
on and off by USB. I'm not sure what all I will need and want to make sure
that I'm not trying to do... Read More
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Spicy Network of NanoScience
10:45 28-05-08
Spicy network of NanoScience, Nanopaprika.eu - The International
NanoScience Community started life in November 2007 and, today, counts
more than 700 members. It is a virtual mee... Read More
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