Electronics Forum / Electrical Engineering / October 2006

In light of the upcoming movie, and really just cause i think it'd be
cool, i thought i'd open up a fairly large crosspost discussion,
because i'm interested in many points of view.
Heres an explantion of who Iron Man is...all the people at the Marvel

What is the reason for the yellow phase being earthed or used as the star
point in a three phase system? I have seen this several times in the North
of the uk. I am told that it is something to do with impedances?
Many thanks.....Barry

Could someone please direct me to an online source of information on
the obvious reasons why we don't ground to gas lines, as well as the
alternatives for homeowners and utility installers.
Thanks,

I am in need of Winding Data of a DC Motor
Siemens Make, 14.8 KW, 1720 RPM,
Can any one provide authentic data and help me.

I have recently moved from the UK to the US.  In the UK I was a
qualified electrician for 10 years.  I now live in  Dutchess county NY,
were they don't have any licensing requirements for electricians.  (Not
the best idea I have come across.)

Am I reading Article 210.21 (B) (1) properly?
If an receptacle is the only one on the circuit, the branch circuit rating
may be less than the receptacle?  For example, according to this article, it
would be allowable to put a NEMA 14-50R on a circuit with a 30A double pole

www.jaycar.com.au
sells a rf transmitter module for use with digital data, the output is 3dBm,
is there an opamp circuit to boost the output power? if not, any ic's that
can amplify or any transmitter ic's with higher output power?

There is an old puzzle that asks how to wire three three-way
switches in such a way that each of them can switch on or
off a lamp.
I cannot find the solution - is there a web page about this?

I have a home office with a copier, laser printer, UPS, and a computer.
Only the computer is plugged into my UPS.  When I turn on the copier or
laser printer, or when either one powers up from hibernate mode, the UPS
briefly clicks on.  The house is only a few years old and the ...

I have two 100A service panels. Panel 1 has a #6 copper wire running
from it to a water pipe and believe it is the correct size based on the
NEC 250.122 because, the largest service wire is 200A at the meter  to
power the panels. Panel 2 doesn't have a ground so, can I connect a #8

how would you go abouts measuring a battery's level ie how full it is.

Hi - I am fairly unfamiliar with electrical concepts, but here is my
question. Im my bathroom is a standard 220 volt baseboard heater
installed by the previous owner. It is in a terrible position as the
length of it sits just 2 inches from a permanent large wood base of a

Looking for original or copy.This is the SLC Personal Computer Software
Users Guide. Explains programming a SLC 100/150 with a Pc instead of using
the pocket programmer. The Rockwell web sight no longer has this available
electronically.

i'm working on some projects that were manufactured and installed by british contractors. i would like the british (great britain/england) electrical code or standards. thanks for any help or info

I need to design an AM transmitter as a vlsi project (it needs to be
located on smart dust later on).
Does anyone have any good suggestions were to start from? I am familiar
with vlsi, but don't really know how to implement such a big idea, into