F
Father Haskell
Guest
What goodies do I have?
M
Michael
Guest
Father Haskell wrote:
J
jasen
Guest
On 2006-12-23, Father Haskell <fatherhaskell@yahoo.com> wrote:
moderately strong magnet, a nigh high-voltage capacitor, and a high
voltage diode, sundry microswitches from the safety interlock, possibly
an electric clock. possibly a clockwork timer. possibly a slow motor
(if yours was a turntable model) or used to drive a mirror-ball that
can be hand-cranked to produce quite a bit of AC voltage (enough to
make flourescent lamps glow in my case). an electric fan,
a glass platter, and a box with a glass door that'll shield stuff
from microwaves.
Bye.
Jasen
A large and potentially deadly transformer, a magnetron which includes a
moderately strong magnet, a nigh high-voltage capacitor, and a high
voltage diode, sundry microswitches from the safety interlock, possibly
an electric clock. possibly a clockwork timer. possibly a slow motor
(if yours was a turntable model) or used to drive a mirror-ball that
can be hand-cranked to produce quite a bit of AC voltage (enough to
make flourescent lamps glow in my case). an electric fan,
a glass platter, and a box with a glass door that'll shield stuff
from microwaves.
Bye.
Jasen
F
Father Haskell
Guest
jasen wrote:
the output?
are the magnets? They might be useful in my shop someplace.
have the makings for a Cockcroft-Walton.
Heavy chunk of steel, should have a decent VA rating. What's
the output?
Looks like it'd make a cool looking prop death ray. How strong
are the magnets? They might be useful in my shop someplace.
1 uf, 3600 volts.
Found and saved. Several more, and several more caps, I'd
have the makings for a Cockcroft-Walton.
3 rpm, 2 watts.
Too cheap to save.
J
jasen
Guest
On 2006-12-24, Father Haskell <fatherhaskell@yahoo.com> wrote:
--
Bye.
Jasen
about 2500V (guess) 500ma, more into a short.
mine had a ceramic magnet about as strong as those seen on 9" loudspeakers
could be exciting.
--
Bye.
Jasen
W
Wombat-Pipex-News
Guest
"jasen" <jasen@free.net.nz> wrote in message
news:eml3an$g69$1@jasen.is-a-geek.org...
Funny I just did the same thing the other day.
Was wondering if I could make a Cone shaped device that could be used to
kill Garden Weeds.
Place the cone over the weedy area and then stand well back and set the
microwave going over a long bit of cable.
Just cook the floor.
Hay I wonder if you could fry the Nabours.? Place it agains there bedroom
wall and cook them through the wall whilst they sleep.?
;-)
Regards
Wombat.
news:eml3an$g69$1@jasen.is-a-geek.org...
---------
Funny I just did the same thing the other day.
Was wondering if I could make a Cone shaped device that could be used to
kill Garden Weeds.
Place the cone over the weedy area and then stand well back and set the
microwave going over a long bit of cable.
Just cook the floor.
Hay I wonder if you could fry the Nabours.? Place it agains there bedroom
wall and cook them through the wall whilst they sleep.?
;-)
Regards
Wombat.
P
PeterD
Guest
On 25 Dec 2006 05:56:09 GMT, jasen <jasen@free.net.nz> wrote:
100 ma--remember it is intermittant service so they push it to the
limit (the heck with heat!)
But as to 'into a short'... Hey, let's try that! <bg>
I think you are wrong about the current rating... I'd guess more like
100 ma--remember it is intermittant service so they push it to the
limit (the heck with heat!)
But as to 'into a short'... Hey, let's try that! <bg>
J
jasen
Guest
On 2006-12-25, Wombat-Pipex-News <wombatppc@nospam> wrote:
Bye.
Jasen
just cut the floor out of the oven :^)
depends if they have foil insulation...
Bye.
Jasen
R
Roddy Meatstick..........
Guest
Wombat-Pipex-News wrote:
the brain cooks too.
You could use the HV transformer for a burglar catcher by wiring the
door knob or garage door handle. When you find them dead in front of
your door you know they didn't belong there.
food, the magnetron comes on and blinds them, if they don't move fast
the brain cooks too.
You could use the HV transformer for a burglar catcher by wiring the
door knob or garage door handle. When you find them dead in front of
your door you know they didn't belong there.
F
Father Haskell
Guest
Wombat-Pipex-News wrote:
ground, something like a steel-shot filled flexible vinyl donut.
You can cook weeds more easily and safely with a propane
torch designed for just this purpose, though. Boiling water
also does the trick.
particular wavelength would set up standing waves within
either 1/2" or 1" nails. Hitting the house with sufficient power
(800 typical watts ~= 1 hp) would set it ablaze.
Focusing that power onto a spot the size of a quarter has
the same effect on human flesh as a 1 hp 1" drill. You've
got the makings there for a practical death ray.
You'll probably want a microwave-proof gasket to seal the cone to the
ground, something like a steel-shot filled flexible vinyl donut.
You can cook weeds more easily and safely with a propane
torch designed for just this purpose, though. Boiling water
also does the trick.
A friend who belonged to the ARRL once told me that the
particular wavelength would set up standing waves within
either 1/2" or 1" nails. Hitting the house with sufficient power
(800 typical watts ~= 1 hp) would set it ablaze.
Focusing that power onto a spot the size of a quarter has
the same effect on human flesh as a 1 hp 1" drill. You've
got the makings there for a practical death ray.
R
Roddy Meatstick..........
Guest
Father Haskell wrote:
P
PeterD
Guest
On Wed, 27 Dec 2006 16:08:10 GMT, "Roddy Meatstick.............."
<roddy9@verizon.net> wrote:
<roddy9@verizon.net> wrote:
If they did that, you wouldn't knwo it was on!
F
Father Haskell
Guest
Roddy Meatstick.............. wrote:
Expense. Not enough demand.
J
jasen
Guest
On 2006-12-27, Roddy Meatstick.............. <roddy9@verizon.net> wrote:
Bye.
Jasen
it takes quite a breeze to cool the magnetron
Bye.
Jasen
P
PeterD
Guest
On 28 Dec 2006 09:09:15 GMT, jasen <jasen@free.net.nz> wrote:
fan are used to disperse the microwaves inside the oven to help
prevent cooking hot spots. Some of the noise is due to the size of the
blades (they are more efficient at dispersing the microwaves than at
moving air!)
Some microwave ovens with turntables have quieter fans because the
need to disperse the microwaves is less of a problem with the
turntable.
The fan's job is more than cooling the magnetron. The blades of the
fan are used to disperse the microwaves inside the oven to help
prevent cooking hot spots. Some of the noise is due to the size of the
blades (they are more efficient at dispersing the microwaves than at
moving air!)
Some microwave ovens with turntables have quieter fans because the
need to disperse the microwaves is less of a problem with the
turntable.
Guest
How do the blades disperse the microwaves?
The entire chamber is a resonant cavity. The entire space is inundated
with microwaves.
-Mike K.
..
F
Father Haskell
Guest
PeterD wrote:
The fan I pulled had plastic blades.
Guest
As a newcomer to this newsgroup, please allow me to clarify.
I do not mean to dispute your information about the stirrer blades, I
agree with you.
I am trying to get more information about what exactly is involved in
the dispersion. More than what I pick up off of the various "how does a
microwave oven work" hits that google returns.
Thank you,
Mike K.
P
PeterD
Guest
On 28 Dec 2006 11:40:12 -0800, mkorneck@nd.edu wrote:
The microwaves reflect off the blades at varying angles (as the blades
turn).
It (the cooking chamber) is not a resonant cavity. To be that it would
have to be rather small (a wavelength of a microwave oven is in the
range of 4 to 5 inches, IIRC). There are 'hot' spots (and cool spots)
in that chamber, caused by reflections, and the interface between the
source and the oven chamber.
This is why if you have a turntable microwave without a dispersal fan
and take out the turntable (or it breaks... <g>
you can end up with
your dinner over cooked in some places and frozen in other spots.
<g> They are in the path between the magetron and the oven (cavity).
The microwaves reflect off the blades at varying angles (as the blades
turn).
It (the cooking chamber) is not a resonant cavity. To be that it would
have to be rather small (a wavelength of a microwave oven is in the
range of 4 to 5 inches, IIRC). There are 'hot' spots (and cool spots)
in that chamber, caused by reflections, and the interface between the
source and the oven chamber.
This is why if you have a turntable microwave without a dispersal fan
and take out the turntable (or it breaks... <g>
you can end up withyour dinner over cooked in some places and frozen in other spots.
P
PeterD
Guest
On 28 Dec 2006 09:59:01 -0800, "Father Haskell"
<fatherhaskell@yahoo.com> wrote:
are often times quieter, too!)
<fatherhaskell@yahoo.com> wrote:
Turntable oven? They don't use the fan for disperal usually. (and they
are often times quieter, too!)