Electronics Forum / Electronics / January 2007

I'm planning on running the three sets of wire in the Subject 60'
underground 18' deep in a 1 1/2" grey electrical pipe. The video is for a
video camera. Should I be concerned about interference. If so, what can I do
to minimize it? AC is black,white and green 12 gauge copper ...

While not the most electronically-inclined individual, I am a computer
scientist--but have little grasp on the hardware (especially analog)
side of these things.  I have the need to construct a control
mechanism for my wine cellar.  Here are my specs:

Assuming I have 3 variable reluctance sensors monitoring teeth on a wheel
and I'm not using 2 of them, but they all share an -ve lead, will I have
crosstalk issues a) In a perfect world with the earth properly grounded b)
if I have a fault with an earth somewhere.

Should these be mounted with the faces plumb or level?  The RS
273-241 4" fan (new unit) that I'm trying to build an air circulator
from seems not to run at constant speed when I test it flat on
the bench.

I need some help in a patent issue. I'm in search of information
about inductive heating of a tool holder.
For detailed information :
www.inductionquest.net

Gigabyte is making a big deal about their motherboards having "all
solid capacitors".
Is this some new type of capacitor  technology, or are they saying
that they don't use electrolytic (paper?) capacitors?

Because I have 900 of them on my tree and they are quite bright!

"TACAN" <tacan@somewhere.com> wrote in message news:...

I am experimenting on an older (1955) motor scooter that operates on a
6 volt AC magneto. I want to install a 6 volt AC horn. My question is:
Do I need a 6 volt automotive horn relay to produce sufficient punch to
power the AC horn? Is the purpose of the relay to muster enough ...

Hi, all
I am trying to find an X-10 module (control over power lines) that is a
general purpose one. Basically, I need only the part to interface it to the
power lines and I want to use my own miro on top of it to perform my own

I'm using an old PC (AT form factor, I think) power supply to power a
device that uses 12V at 3.7A, since I couldn't find anything else cheap
that would provide 12V at that level of current.  All is working very
well, but the power supply fan is quite noisy, and I'd like it to be

Those ballasts are available for around $150 in aquaristic shops, and
are told to have much better efficiency, prolong the life of the bulb etc.
I was unable to find any schematics, or even ICs of which I could use at
least the datasheets. Anyone has links, or whatever might help ...

Anyone out there know how to convert a bunch of analog voltage samples
into a power reading?  Do you just square the samples and average them?
Thank you.

What a 26-27" panel TV inputs from a computer DVI output without
distortion (with a computer resolution equal to the TV matrix
resolution)?
Or,

**  Amasing what a little Googling will turn up ...
http://www.plasa.org/standards/input/input.asp?HeadingID=1&InputID=40
Dangerous Mains Leads! - Safety warning about dangerous mains cables - have
you had this problem?