Surge / Ground / Lightning [212 articles]
NB - 21:27 11-05-08
Who is W_TOM and why has he appeared in every single thread that has
contained those keywords since 2001???
... Read More
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alarm switch [5 articles]
steve - 17:52 11-05-08
I require alarm systems for both personal and house.
From seeing various alarm projects, there is no detail about how the
alarm is set off.
For example, a house alarm co... Read More
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Driving two transistors with same signal [22 articles]
vic - 16:14 11-05-08
Hi,
I have two common anode 7-segments displays, and only one wire to drive
them. I need to achieve the following : when the control signal is +5V,
display1 is ON and displa... Read More
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Easy Question - I Hope [2 articles]
PinkFloyd43 - 15:33 11-05-08
First finally dropped the $$ on the big screen and as I live
in TX, which typically has huge thunderstorms this time of
year, when at home I unplug everything I value. I want to
... Read More
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7-segment display problem [2 articles]
14:05 11-05-08
Hi all. I'm just starting out trying to get my head round this
electronics thing and am building a few simple circuits that I find on
the Internet. I got a 7-segment display (c... Read More
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Looking for a... [2 articles]
steamer - 13:20 11-05-08
--Have googled my brains out and can't seem to find what I'm looking
for, which is more of a nifty threaded LED panel mount with solderable lugs
on the bottom. I've used them as... Read More
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Walkie talkie operation [2 articles]
Cass Lewart - 10:35 11-05-08
I have an inexpensive walkie talkie (under $50/pair). It receives
FRB in 400 MHz and weather stations in 160 MHz region. It is both
sensitive and selective. I can not find any ... Read More
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Garage Door Alert [5 articles]
08:38 11-05-08
A friend of ours bought a garage door sensor that has two LEDs and a
beeper that goes off when the door is first opened. An electrician
installed it in about 2 hours so he doesn... Read More
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digikey components [5 articles]
lerameur - 06:46 11-05-08
hello guys,
I usually find the parts I am looking for on digikey web site. I have
not order from there for a long time. But have they decrease
selectivity of products. I was l... Read More
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High voltage to power electric cars. [8 articles]
sinebar@bellsouth.net - 22:12 10-05-08
Please bear in mind that I am not an electrical engineer so my
knowlege is somewhat limited. Now my question.
I presume that storing high voltage at low current is more efficien... Read More
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Electric home heat system? [3 articles]
Butter - 21:15 10-05-08
A guy I work with kept complaining that his breakers were tripping. I
went over and put an amp meter each of the two circuits providing
power to his electric heat in his house. ... Read More
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Tips? [3 articles]
Boswell - 20:31 10-05-08
I have plans to assmble a SIMPLE Date-'clock' Basic parts being;
CLOCK CHIP,
DISPLAY DRVR,
LED,
LIGHT-CONVER. (power source).
Any reccommendations or Tips,... Read More
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does Cyrus amp need a load? [5 articles]
tempus fugit - 17:53 10-05-08
Hey all;
My brother has a Cyrus amp that he would like to use a wireless headphone
set with. Trouble is, there's no headphone jack, so I was going to rig
something up where he... Read More
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