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Muddymike[_2_]

In sci.electronics.repair wrote:
On Mon, 16 Jul 2012 16:28:28 +0000 (UTC), Cydrome Leader
wrote:

In sci.electronics.repair Arfa Daily wrote:

"Rod Speed" wrote in message
...

"Arfa Daily" wrote in message
...

"Martin Brown" wrote in message
...
On 11/07/2012 10:37, D. T. Green wrote:
On just buying a 800 watt 'two' stroke petrol generator from Aldi,
we
have
heard from someone who says that he has got one; and that his is
running
very roughly, and is really noisy.

Also it says in the instructions that it is *not* suitable for
connecting to
televisions or other sensitive electronic equipment.

Likely it is not just acoustically noisy but electronically noisy
too
and the ignition system radio emissions will cause snow on a
portable
TV. It might be so rough and ready electrically either voltage or
frequency wise that it could fail or wreck some old sets completely.
I'd
expect most modern switched mode PSUs to cope with almost anything
but
then you are taking a risk since the maker says it is unsuitable.

I would have said the exact opposite of that. Linear supplies with a
nice
big chunk of L in the way, are pretty much unconcerned about such
nasties
as spikes, whereas switchers will fail if you just look at them
wrongly
on a day with a Y in it ...

Like hell they do.

However, that said, I would agree with everyone else that using this
with
modern electronic equipment would not be a good idea.

That's just plain wrong with modern switch mode power supplys.

I repair hundreds of the things, and irrespective of the topology of
any
individual design, most work by the skin of their teeth. Left alone, in
general, today's generation are fairly reliable, but in my experience,
subject them to the slightest abuse, and they fail - often
catastrophically

Arfa

I can't imagine a 2 stroke aldi generator would even last long enough to
destroy any electronics. the thing must last about 2-3 minutes tops
before
seizing, assuming it even starts out of the box.

So you lack a grasp of reality. Reliable 2 cycle engines are quite
common - they have been used in chain saws, outboard motors, and a
variety of other uses for more than half a century. The chief cause
of premature failure is some idiot (look in to a mirror for an
example) failing to properly mix the oil and gas.

there are great 2 cycle engines, but they don't come from aldi.

Have you ever bought any Tools or anything for that matter from Aldi?

Mike