Electronics Forum / Electrical Engineering / January 2008

I have a non-digital TV and basic cable.  Six months or so the picture on
channel 67(basic) was distorted, wobbly, whatever.  That lasted for about
two weeks; it cleared up.  Then 66(basic) went on the fritz.  Same thing -
distorted, wobbly, whatever.

i wonder if it is worth to take the laundry machine i bought in france
(220/230V 50Hz) back home to brazil (220V 60Hz). will the different
frequency damage the appliance? as far as i understood there's no
converter for the frequency.

I'm trying to run the gamma radiation model in TCAD. Does anyone here
know if it works with anything other than silicon and poly? I ran it
and I'm only obtaining results for those two materials. It's not
showing any values for SiO2 or nitride.

Its been qouted in one of the earlier discusions that autotransformer
doesn't provide isolation. Why so?
Also, what is the basic difference between autotranformer and a
regular one?

We are experiencing a "brown out" because the recent storm.  We are
getting some current in the house, but not much.  I have no way to
measure it but the lights come on very dimly.  the refigerator is cold
inside.

Why we are charged for Watt power only. We are being not charged for
VAR power. Inductance and capacitance is also load and they also
consume power. Then why we are not charged for it.

Suppose you have a signal consisting of 2 stationary signals plus a
stochastic component that is WSS. We'll also suppose that one of the
deterministic signal components (say signal 1) is our "desired" signal
and the other deterministic signal component (signal 2) an

Looking for software to create simple electrical prints with
contactors, motor starters, etc.  AutoCad is too expensive for my
budget and project and most other applications that advertise
electrical are really set up for electronics (i.e. resistors,

How could we measure 3 phase current industrially.
Can anyone describe me the working.
I am a fresher doing a project for a company and they need it.

Have a bonding question,
For old houses that may be missing an available grounding wire (from
the distribution panel) at the wall receptacle, the NEC forbids
bonding the ground terminal of a three plug receptacle to the neutral--

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I see that an Ultra Thin Line  Fluorescent light fixture (model 27278)
that I had bought at Home Depot for my kitchen remodeling job (some time
way back) is subject to a CPSC recall (#99-112) due to being "improperly
assembled". I tried calling the GE 800# on the recall notice ...

I recently posted this to an electricians' forum, it currently has 158
views: but no takers
A problem easily repaired today is much more difficult to explain what
occurred because of it. We recently relocated a machine that included a 70

Electric shower
Can anyone offer advice please.
I am shortly moving house and had an electric shower fitted in the bathroom.
The chap who fitted it said that he had a qualified electrician to connect