Op amps problem Gain Calculation

[Daniel60]

Jeff Liebermann wrote:

On Mon, 1 Jan 2018 18:31:01 -0500, Ralph Mowery
rmowery28146@earthlink.net> wrote:

People are funny. A fellow I knew sold items at a farmers market. One
day he tried to sell cantalopes for $ .25 and not selling many, he
marked that out and put up a sign of 3/$ 1.00. Sold almost all of them
at that price even though they cost more.

I found this at a local market:
http://www.11junk.com/jeffl/pics/drivel/slides/you-save.html
When I accosted a stocking clerk to point out the problem, he failed
to see what was wrong. When I dragged over a manager, it took about
15 seconds for his brain to engage and see the problem. He later
mentioned that it was like that for at least 2 days and nobody
noticed.

Just depends who the "You" is!! "You", the customer or "You", the
retailer!! ;-)

--
Daniel

The three Ages of Man ....

1. Man believes in Santa Claus!!
2. Man does not believe in Santa Claus!!
3. Man IS Santa Clause!!

 

[James Wilkinson Sword]

On Tue, 02 Jan 2018 03:32:17 -0000, Michael A Terrell <mike.terrell@earthlink.net> wrote:

James Wilkinson Sword wrote:
On Mon, 01 Jan 2018 19:02:10 -0000, Michael A Terrell
mike.terrell@earthlink.net> wrote:

James Wilkinson Sword wrote:

Let's say I have a shop with shelf space for 500 microwaves. If
the expensive ones make me Ł50 and the cheap ones make me Ł10, I
ain't gonna sell the cheap ones.

You aren't going to sell much of anything. People will go
elsewhere to by their microwave,

No, because the moron next door is marking up the expensive ones too
much, so everyone buying decent ovens comes to me.

So, everyone else is a moron, except for you? This explains more
than you know. How will you eliminate the overhead for your store? Only
sell stolen goods? No business phone, or insurance? No employees? Maybe
a dirt floor, in a tin shack?

If he needs to make $50 a sale to run his shop, then making less than that for te cheap shit is pointless.

and take their other business with them. First of
all, it would be foolish to put out 500 units on retail shelves.

Give reasoning. There might be 500 different models, anyway it was a
figure plucked out of thin air. I'd probably be selling other devices
and wouldn't have room for 500.

Probably? You have no idea how to create a business plan. Without
one, you'll have to front all of the CASH to stock your store. No floor
plan, where the seller retains ownership of the merchandise until it's
retailed.

Secondly, a lot of people who buy high end items don't go to a retail
store. They call a service company, tell them what they want. It is
delivered, and installed.

Only if you're a complete numpty that can't plug in something as
simple as a microwave oven.

High end microwaves are often installed under a cabinet. I guess all
you've ever see are the trailer park models that are small enough to
slide under those $10 cabinets. It required drilling holes in the
cabinets to hang the oven and installing wiring for the unit so that
makes you the 'numpty', whatever the hell that is.

How stupid do you have to be not to be able to fit these things yourself? Do you pay an electrician to change a lightbulb too?

The old one is hauled off as part of the
price. The seller's reputation is on the line for quality, so most of
the profit comes from the labor, not the markup.

I just bought a new microwave. It was a high end model that was
closed out for $60. The original price was $160. How much profit was
lost after that $100 discount?

Who knows, they were cutting losses as they couldn't get rid of them.

Which wouldn't happen, if someone didn't overstock on high end
products that they had no chance of selling.

You have to cater for whoever lives nearby. If it's a council estate, go set up business elsewhere or be prepared to make fuck all.

BTW, that is the first new microwave that I've ever bought. I've
used them for 35 years, and I only paid $2 for a good used one, once..
The rest were repaired, mostly with used parts.

I bought one for Ł30 once. Basic model. The rest were free second
hand. Mainly due to idiots replacing perfectly working devices. It's
the same reason 2nd hand cars are so cheap, people pay Ł30,000 for a
new car, then sell it for half that after a couple of years.
Complete and utter fools.

If they didn't dump their still usable vehicles, you would never be able
to own any vehicle. Some people have valid reasons to trade in a two
year old car. Some people drive for a living, and put a lot of miles on
a vehicle. Sometimes their needs change, and their vehicle no longer
fits those needs.

No, they just like a brand new car and have more money than sense.

Another example of silly marketing. I worked at a TV shop as a
teenager. They sold new and used Color TVs, and new B&W, but no used..
The owner gave me all the B&W trade ins that I sold from my home. I
sold more TVs than he did, and most weeks I sold more in used B&W
than he did in color sets.

If he was only going to make a few dollars for each used BnW sale,
then he was right not to bother. Why waste shop space?

He made no sale, since he didn't have what they wanted. This was the
mid '60s when money was quite tight in the area. The people couldn't
afford a new B&W set, which started at over $100 for anything worth
taking home. People in management jobs at the local factories bought new
color TVs. They were still vacuum tube, and they cost most working class
people four months or more of their income. Used color TVs were more
expensive than new sets, in that they needed a lot of repairs. My dad
bought one of the first Motorola Quasar color TVs. It had the first
rectangular color CRT. A 23EGP22. It was one of the worst color CRTs
made. In today's money that set would have cost thousands of dollars.

OTOH, I sold every usable TV as fast as I hauled them home, since I
had no place to store them. He was throwing away the profit of three to
five new color sets a week, in those B&W sets he was tossing out. I made
up to $50 on the free TVs that I sold, and he lost that much. Not only
that, but I had zero overhead, because there would be one to three TVs
sitting in the old carriage house, with a dirt floor.

You only made more as he gave you them free.

--
Helpdesk: Click on the 'my computer' icon on the left of the screen.
Customer: Your left or my left?

 

[James Wilkinson Sword]

On Tue, 02 Jan 2018 02:18:13 -0000, Jeff Liebermann <jeffl@cruzio.com> wrote:

On Mon, 1 Jan 2018 18:31:01 -0500, Ralph Mowery
rmowery28146@earthlink.net> wrote:

People are funny. A fellow I knew sold items at a farmers market. One
day he tried to sell cantalopes for $ .25 and not selling many, he
marked that out and put up a sign of 3/$ 1.00. Sold almost all of them
at that price even though they cost more.

I found this at a local market:
http://www.11junk.com/jeffl/pics/drivel/slides/you-save.html
When I accosted a stocking clerk to point out the problem, he failed
to see what was wrong. When I dragged over a manager, it took about
15 seconds for his brain to engage and see the problem. He later
mentioned that it was like that for at least 2 days and nobody
noticed.

People drinking that shit are gullible enough to not notice.

--
Why do men die before their wives? They want to.

 

[James Wilkinson Sword]

On Mon, 01 Jan 2018 21:51:50 -0000, rickman <gnuarm.deletethisbit@gmail.com> wrote:

James Wilkinson Sword wrote on 1/1/2018 11:16 AM:
On Mon, 01 Jan 2018 04:44:33 -0000, rickman <gnuarm.deletethisbit@gmail.com
wrote:

James Wilkinson Sword wrote on 12/31/2017 6:39 AM:
On Sun, 31 Dec 2017 00:59:45 -0000, rickman <gnuarm@gmail.com> wrote:

James Wilkinson Sword wrote on 12/30/2017 6:45 PM:
On Sat, 30 Dec 2017 22:33:26 -0000, rickman <gnuarm@gmail.com> wrote:

James Wilkinson Sword wrote on 12/30/2017 3:56 PM:
On Sat, 30 Dec 2017 20:48:34 -0000, rickman <gnuarm@gmail.com> wrote:

James Wilkinson Sword wrote on 12/30/2017 3:34 PM:
On Sat, 30 Dec 2017 20:31:14 -0000, rickman <gnuarm@gmail.com> wrote:

James Wilkinson Sword wrote on 12/30/2017 9:37 AM:
On Sat, 30 Dec 2017 05:39:04 -0000, Robert Baer
robertbaer@localnet.com
wrote:

James Wilkinson Sword wrote:
On Thu, 28 Dec 2017 03:59:42 -0000, Robert Baer
robertbaer@localnet.com> wrote:

James Wilkinson Sword wrote:
On Tue, 12 Dec 2017 03:49:55 -0000, rickman <gnuarm@gmail..com
wrote:

James Wilkinson Sword wrote on 12/11/2017 11:50 AM:
On Mon, 11 Dec 2017 04:07:43 -0000, Mary-Jane Rottencrotch
usenet@buttocks.local> wrote:

On 2007-01-19 12:13, Peter Fucker wrote:
Is it really true that turning on a microwave with nothing
in it
will
break it?

Derp.

It was a sensible question. This could be done by accident.

I interviewed with a place once that was doing something with
testing
microwave ovens. They ran them all the time with nothing in
them.
I had
always read that you should not operate them with nothing to
absorb the
energy and mentioned that. I got a strange look from the guy.
Obviously
the energy that would be absorbed is within the limits of what
the
ovens
were designed to get rid of.

You'd think there would be something that absorbs microwaves
that
miss
the food. And you'd think such a thing would have a thermal
cutout.
Anybody want to try it?

IDIOT!
ain't nuttin that "absorbs" the energy.
Ask how the maggie works with highly mis-matched loads (hi
SWR).

I went for an interview in a place that designed industrial
strength
magnetron. There IS a block to absorb energy. A microwave oven
without
one is VERY badly designed.

Rule of thumb or any commercial (= = volume) item is: for every
fifty
cent cost to make, selling price must go up by five dollars (cars,
toys,
etc).
Industrial grade magge-powered ovens cost a lot more than the
over
the counter el-cheapos that the great unwashed buy.

Why would you need to make $4.50 extra because you spend $0..50 more
on the
production?

I don't know that it is 10 to 1, but the $0.50 higher production cost
means
the price is elevated at each step of the distribution process..
Most
costs
of handling, storage, promotion and retailing are allocated by price.
Raise
the price from the manufacturer by 10% and the final sale price also
goes up
10%, not the exact dollar rise of manufacturing.

It costs no more to shift a microwave oven through the retail system
if a
component inside it costs $0.50 more. If I was a shop selling
microwaves,
I'd want a fixed profit per unit, not a percentage.

But you are not a shop selling microwaves or anything else most
likely or
you'd be out of business quickly. I suppose you might do OK selling
gravel.

Virtually every retail establishment has costs which *do* vary with the
selling price of a unit. Which do you think sits on the shelf longer,
the
$100 microwave "marked down" to $69 or the $399 unit? That shelf space
costs money, advertising costs money, heating, cooling and lighting the
store costs money. Sometimes the store has their own capital tied
up in
the
goods (not Walmart, it's yours until it is sold) and a higher profit
is the
only reason for selling higher priced goods that take longer to
shift and
sell fewer.

Do you really not see this?

I would imagine they both sit on the shelf for the same amount of
time, or
they're badly priced.

shrug> Ok, I suppose you know more than the retailers.

Tell me why they want to make fuck all on cheaper ones that take up the
same
store space.

Why does a supermarket sell name brand and store brand at a much lower
price? Why do they sell luxury cars and economy cars? If they make the
same profit on every car regardless of selling price, why bother with the
expensive ones?

Half their customers like expensive goods, half like cheap goods. It
doubles the sales if you provide both.

So they don't care if they have to inventory a lot more dollars for the same
return? You don't understand retail.

Let's say I have a shop with shelf space for 500 microwaves. If the
expensive ones make me Ł50 and the cheap ones make me Ł10, I ain't gonna
sell the cheap ones.

Like I said, you don't understand retail. You may only make 10 on the low
priced ovens, but if you sell 10 of those for every 1 of the high priced
oven you will still carry the low priced oven because you will make more
money than if you don't. You will still carry the high priced oven because
you can make more money than if you don't. The fact that you have 50 of the
cheap ovens on the shelf doesn't mean you will sell more of them than if you
had 40 cheap ovens and 10 of the expensive ovens sitting on the shelf.

There are many factors you don't seem to understand.

I understand that they're not making as much as they could on the expensive ones. Lower the price, they aren't clearing them fast enough.

--
Why do men die before their wives? They want to.

 

[Steff]

Den 2017-12-11 kl. 05:07, skrev Mary-Jane Rottencrotch:

On 2007-01-19 12:13, Peter Fucker wrote:
Is it really true that turning on a microwave with nothing in it will break it?

No I run them empty when I was a repairguy/problem shooter in Whirlpool
factory here in Sweden. Sometimes running them for 10-15 minutes to
check for microwave leaks and abnormalities. So a Shorter time of
running empty will not harm your owen.

 

[Old Guys Rule]

In article <pb053o$4m9$1@news.mixmin.net>
Anonymous <anonymous@anonymous.com> wrote:

Anonymous formulated on Sunday :
https://www.cnet.com/news/yahoo-aol-oath-privacy-policy-verizon-emails-messages/

Anyone in here still stupid enough to have an account? A shunned
these back in the late 90's.

Don't you just love articles like this.

Google Chrome to Boost User Privacy by Improving Cookies Handling
Procedure

https://www.bleepingcomputer.com/news/security/google-chrome-to-boost-user-privacy-by-improving-cookies-handling-procedure/

Google continues to indoctrinate us, trying to dupe us into believing
that they are concerned about our privacy.

Here is a good one from google.

Google works out a fascinating, slightly scary way for AI to isolate
voices in a crowd

https://arstechnica.com/gadgets/2018/04/google-works-out-a-fascinating-slightly-scary-way-for-ai-to-isolate-voices-in-a-crowd/

Well, only if everyone follows the rules. One minor change blows
that whole sound recognition thing to shreds.

https://www.electronickits.com/voice-changer-kit/

<https://www.amazon.com/s/ref=nb_sb_noss_1?url=search-
alias%3Daps&field-keywords=voice+changer>

 

[Peeler]

On Fri, 21 Dec 2018 05:55:13 +1100, cantankerous trolling geezer Rot Speed,
the auto-contradicting senile sociopath, blabbered, again:

don't see any. Designers really ought to account for those of us with
better eyesight.

No point in doing that.

It's really psychiatrists who should look after folk with damaged brains
like the two of you! LOL

--
Bod addressing abnormal senile quarreller Rot:
"Do you practice arguing with yourself in an empty room?"
MID: <g4ihlaFh5p5U2@mid.individual.net>

 

[Peeler]

On Sat, 22 Dec 2018 10:09:51 +1100, cantankerous trolling geezer Rot Speed,
the auto-contradicting senile sociopath, blabbered, again:

<FLUSH trollshit unread>

--
Another typical retarded "conversation" between the Scottish wanker and
senile Ozzietard:

Birdbrain: "Horse shit doesn't stink."

Senile Rot: "It does if you roll in it."

Birdbrain: "I've never worked out why, I assumed it was maybe meateaters
that made stinky shit, but then why does vegetarian human shit stink? Is it
just the fact that we're capable of digesting meat?"

Senile Rot: "Nope, some cow shit stinks too."

Message-ID: <fv5f1tFi3f2U1@mid.individual.net>

 

[Peeler]

On Sat, 22 Dec 2018 13:53:46 +1100, cantankerous trolling geezer Rot Speed,
the auto-contradicting senile sociopath, blabbered, again:

Why would you call someone with better eyes a freak?

Worse eyes when you see flicker with car lights.

Let's face it: BOTH of you are FREAKS, the one is a senile sociopathic freak
and the other one a puerile sociopathic freak.

--
Archibald Tarquin Blenkinsopp addressing Rot Speed:
"You really are a clueless pillock."
MID: <69uiid1ftof4m6jgmssv8idijehq341qv3@4ax.com>

 

[Peeler]

On Sun, 23 Dec 2018 08:27:05 +1100, cantankerous trolling geezer Rot Speed,
the auto-contradicting senile sociopath, blabbered, again:

<FLUSH another 171 lines of the two prize idiots' absolutely idiotic
bullshit unread again>


--
Another typical retarded "conversation" between Birdbrain and senile Rot:

Senile Rot: " Did you ever dig a hole to bury your own shit?"

Birdbrain: "I do if there's no flush toilet around."

Senile Rot: "Yeah, I prefer camping like that, off by myself with
no dunnys around and have always buried the shit."

MID: <fv66kaFml0nU2@mid.individual.net>

 

[Peeler]

On Sun, 23 Dec 2018 09:58:52 +1100, cantankerous trolling geezer Rot Speed,
the auto-contradicting senile sociopath, blabbered, again:

<FLUSH yet more trollshit>

You STILL haven't learned your lesson, you filthy senile 85-year-old cretin?
OK, I'm going to teach you yet some more how one deals with trolling scum
like you! LOL

--
FredXX to Rot Speed:
"You are still an idiot and an embarrassment to your country. No wonder
we shippe the likes of you out of the British Isles. Perhaps stupidity
and criminality is inherited after all?"
Message-ID: <plbf76$gfl$1@dont-email.me>

 

[Peeler]

On Mon, 24 Dec 2018 05:06:39 +1100, cantankerous trolling geezer Rot Speed,
the auto-contradicting senile sociopath, blabbered, again:

<FLUSH another 214 lines of stinking trollshit unread again>

--
Another TYPICAL retarded "conversation" between Birdbrain and senile Rot:

Senile Rot: " Did you ever dig a hole to bury your own shit?"

Birdbrain: "I do if there's no flush toilet around."

Senile Rot: "Yeah, I prefer camping like that, off by myself with
no dunnys around and have always buried the shit."

MID: <fv66kaFml0nU2@mid.individual.net>

 

[Peeler]

....and nothing's left!

--
FredXX to Rot Speed:
"You are still an idiot and an embarrassment to your country. No wonder
we shippe the likes of you out of the British Isles. Perhaps stupidity
and criminality is inherited after all?"
Message-ID: <plbf76$gfl$1@dont-email.me>

 

[William Gothberg]

On Sat, 29 Dec 2018 17:57:35 -0000, Bill Gill <billnews2@cox.net> wrote:

On 12/29/2018 11:34 AM, William Gothberg wrote:
On Sat, 29 Dec 2018 16:56:35 -0000, trader_4 <trader4@optonline.net> wrote:

On Saturday, December 29, 2018 at 11:27:53 AM UTC-5, William Gothberg
wrote:
On Sat, 29 Dec 2018 14:23:37 -0000, Bill Gill <billnews2@cox.net> wrote:

On 12/29/2018 7:43 AM, William Gothberg wrote:
Shouldn't we have faster microwaves by now giving out a few kW? They
were invented decades ago.
Higher powered microwaves would require higher powered electric
outlets, probably 220VAC (in the USA).

Not a problem in Europe where everything is 240V. Another reason you
ought to stop that low voltage crap! Do you seriously have to hard
wire all your washing machines, dishwashers, tumble dryers, etc,
etc? And what on earth do you do with hoovers?

No. Of those only a dishwasher is hardwired, typically. The rest are
plug
and cord, 240V in the case of electric dryers. Works for me.

So you do have sockets where you can plug in 240V 3kW devices, just like
in the UK. So no problem with a more powerful microwave then.
If you don't mind going to the garage/laundry room/etc. to use your
microwave.

In the UK we don't have that problem, my kitchen is full of 13A 240V sockets, just like every other room, it's what I plug my kettle, dishwasher, washing machine, bread maker, etc, etc into. All of which would be utterly useless on a 120V circuit. I thought the USA had 240V sockets in rooms where they're likely to be needed, like the kitchen? And where do you plug in a 2kW hoover? I plug mine in any room I'm hoovering.

 

[William Gothberg]

On Sat, 29 Dec 2018 14:37:48 -0000, trader_4 <trader4@optonline.net> wrote:

On Saturday, December 29, 2018 at 9:23:42 AM UTC-5, Bill Gill wrote:
On 12/29/2018 7:43 AM, William Gothberg wrote:
Shouldn't we have faster microwaves by now giving out a few kW? They
were invented decades ago.
Higher powered microwaves would require higher powered electric
outlets, probably 220VAC (in the USA).

Also it is questionable whether higher powered ovens would be
practical for use. Getting warming times down to a couple of
seconds might not be a good idea. More speed is not always better.

Bill

+1

That about covers it. Not sure how useful more power would be. For example,
last night I was thawing out a tomato sauce in a quart plastic container.
The Panasonic has a defrost mode that uses about 30% power and cycles that.
Even so, after a couple mins you have to check, because the bottom gets
hotter and the plastic can soften or melt. Other things tend to heat unevenly
as well, eg you can have one area starting to spatter, while the other is
lower temp. If you had more power, those issues just become worse.

Only with a small number of things, where you'd just select half power. For example I often put in a large bowl of pasta or veg full of cold water, not covered. That water would easily handle 2kW. ONly packaged food in cheap plastic containers is a problem, and those will already melt in my 800W microwave. I always empty them into a real bowl first.

And for sure the fact that receptacles are 15 or 20 amps limits the practical
upside as well.

13A 240V in the UK, no problem to get 3kW. The USA has those too.

If people had a MW and it trips the breaker when they
use another small appliance, they wouldn't be very happy.

My socket circuit is 30A. More modern houses are 32A. Larger houses have two 32A circuits. At 240V, so enough for about 7kW.

 

[William Gothberg]

On Sat, 29 Dec 2018 17:38:04 -0000, Clare Snyder <clare@snyder.on.ca> wrote:

On Sat, 29 Dec 2018 08:07:42 -0800, Bob F <bobnospam@gmail.com> wrote:

On 12/29/2018 6:37 AM, trader_4 wrote:
On Saturday, December 29, 2018 at 9:23:42 AM UTC-5, Bill Gill wrote:
On 12/29/2018 7:43 AM, William Gothberg wrote:
Shouldn't we have faster microwaves by now giving out a few kW? They
were invented decades ago.
Higher powered microwaves would require higher powered electric
outlets, probably 220VAC (in the USA).

Also it is questionable whether higher powered ovens would be
practical for use. Getting warming times down to a couple of
seconds might not be a good idea. More speed is not always better.

Bill

+1

That about covers it. Not sure how useful more power would be. For example,
last night I was thawing out a tomato sauce in a quart plastic container.
The Panasonic has a defrost mode that uses about 30% power and cycles that.


It gets the 30% power by cycling the 100% power on 30% of the time.

(By the way, adjusting the level does not actually change the wattage.
It simply means the microwave will pulse on and off at its fixed wattage
until the desired level is reached.)

https://lifehacker.com/5974788/familiarize-yourself-with-your-microwaves-power-settings-to-make-microwave-cooking-a-joy
That was true of the first generation of Microwaves, but the current
"inverter" driver units actually CAN throttle the power. Inverter
microwaves are much better for defrosting AND cooking.

We've had ours for about 2 years now - replacing our original that we
bought in about 1985.

BIG difference (but the old one would likely still be working by the
time this one dies)

Why is it called an invertor? I thought an invertor was a device to increase the voltage - like running 240V devices off a 12V car battery.

And why on earth would you not want to cook on full power? I've never had a reason to lower the power from the maximum of 800W. I want the meal as soon as possible!

 

[Arthur Conan Doyle]

"William Gothberg" <William_Gothberg@internet.co.is> wrote:

>I thought the USA had 240V sockets in rooms where they're likely to be needed, like the kitchen?

In the US 240v sockets are typically found in the kitchen for use by an electric
range, or in a dedicated laundry room for use by an electric dryer. Sometimes
they can be found in a garage. The interior outlets are typicaly located behind
the appliance - in effect dedicated for that appliance and not intended for
general use.

 

[Arthur Conan Doyle]

"William Gothberg" <William_Gothberg@internet.co.is> wrote:

>Why is it called an invertor?

Typical microwaves use fixed AC power to drive the magnetron. Inverter driven
magnetrons use DC power, which can be variable.

 

[William Gothberg]

On Sat, 29 Dec 2018 18:25:05 -0000, Arthur Conan Doyle <dont@bother.com> wrote:

"William Gothberg" <William_Gothberg@internet.co.is> wrote:

I thought the USA had 240V sockets in rooms where they're likely to be needed, like the kitchen?

In the US 240v sockets are typically found in the kitchen for use by an electric
range, or in a dedicated laundry room for use by an electric dryer. Sometimes
they can be found in a garage. The interior outlets are typicaly located behind
the appliance - in effect dedicated for that appliance and not intended for
general use.

I'd find that severely limiting. 2kW hoover, 2kW kettle, breadmaker, toaster, etc, etc.

 

[William Gothberg]

On Sat, 29 Dec 2018 18:25:56 -0000, <angelicapaganelli@yahoo.com> wrote:

On Saturday, December 29, 2018 at 1:06:23 PM UTC-5, William Gothberg wrote:
On Sat, 29 Dec 2018 17:57:35 -0000, Bill Gill <billnews2@cox.net> wrote:

On 12/29/2018 11:34 AM, William Gothberg wrote:
On Sat, 29 Dec 2018 16:56:35 -0000, trader_4 <trader4@optonline.net> wrote:

On Saturday, December 29, 2018 at 11:27:53 AM UTC-5, William Gothberg
wrote:
On Sat, 29 Dec 2018 14:23:37 -0000, Bill Gill <billnews2@cox.net> wrote:

On 12/29/2018 7:43 AM, William Gothberg wrote:
Shouldn't we have faster microwaves by now giving out a few kW? They
were invented decades ago.
Higher powered microwaves would require higher powered electric
outlets, probably 220VAC (in the USA).

Not a problem in Europe where everything is 240V. Another reason you
ought to stop that low voltage crap! Do you seriously have to hard
wire all your washing machines, dishwashers, tumble dryers, etc,
etc? And what on earth do you do with hoovers?

No. Of those only a dishwasher is hardwired, typically. The rest are
plug
and cord, 240V in the case of electric dryers. Works for me.

So you do have sockets where you can plug in 240V 3kW devices, just like
in the UK. So no problem with a more powerful microwave then.
If you don't mind going to the garage/laundry room/etc. to use your
microwave.

In the UK we don't have that problem, my kitchen is full of 13A 240V sockets, just like every other room, it's what I plug my kettle, dishwasher, washing machine, bread maker, etc, etc into. All of which would be utterly useless on a 120V circuit. I thought the USA had 240V sockets in rooms where they're likely to be needed, like the kitchen? And where do you plug in a 2kW hoover? I plug mine in any room I'm hoovering.

If there's a 240V socket in the kitchen, it's quite likely behind the stove,
which is plugged into it.

I wasn't conveniently able to find the power consumption of my vacuum
cleaner, but I'm sure it isn't 2 kW. My floors are hardwood, so that
kind of power isn't required.

1kW hoovers are shit, especially if you have pets or carpets.