Steel melter for forty bucks? Needs a KW dc supply. Also $1 100nS 30KV! Also ALSO!

The woods are full of these today:

  1000W 12-48V 20A ZVS High Frequency Low Voltage Induction Heating Board
  http://www.ebay.com/sch/i.html?_nkw=1000w+induction+heating&_sop=15

I wonder if they'll levitate an aluminum chunk before meltin git?   Bend 
the coil into cone shape.   Probably needs water.

For a 20A supply I'd rectify AC line with an SCR halfbridge dimmer, 
crank it down to 48V.  Or maybe a cheap 220:120 kilowatt xfrmr
hooked backwards.  Those "international voltage converter" big 
transformers aren't too expensive, especially if they're free in 
your garage junkpile.

---

AHA, 30KV fast-recovery rectifiers are suddenly cheap! Also 30KV ceramic 
caps.  It may finally be time to build a multi-megavolt voltage multiplier
ladder three feet long, stepping up the output of a flyback.   At 60Hz 
your many-stage multiplier is lame, but 15KHz is very different.  First 
need a pipe full of xfrmr oil.  That, or a one-meter hollow metal sphere, 
to suppress arc breakouts.   (Hollow 1M plastic sphere, or balloon-paper-
mache, covered with foil adhesive tape.   Oil-pipe version is probably 
cheaper.

Search eBay for $1  100nS rectifiers from china:

2CL2FL 15kv 100mA
2CL2FM 20kv 100mA
2CL2FP 30kv 30mA 

I wasn't aware of these parts above, just the far more expensive 
HVCA parts 50nS, like UX-FOB, hvca co. now being bought by Dean 
Tech Inc.

---

AHA^2 !!!

Ebay is also full of ultrasonic cleaner replacement pcbs and trans-
ducers, which if 100W and operated in air while pointed upwards below 
a metal reflector, can levitate styrofoam beads taken from a beanbag 
chair.  Yaroo indeed.  Search on:

  ultrasonic 120v driver transducer
  http://www.ebay.com/sch/i.html?_nkw=ultrasonic+driver+transducer+120v&_sop=15

Probably the above will cause tinnitus in humans after a time unless 
earplugs.  Might make dog head explode, mice head incinerate.

---

aha^23 !!!

8KV DC supplies, $3     just snip off the carbon fiber tuft

Needs 12Vdc 70mA, they put out 10 uA or so (60uA when shorted.)  

Make some 1990s "Pika-shoes" sneakers with thick soles and KV power 
supplies, deliver electric handshakes.  These actually work fine down
at 9V.  Hook many in series inside a wizard staff,  to actually raise 
hair or kill iPhones (each would need its own floating independent 
battery of course.)   Or just use them for general HV apps, since 
they easily vary the HV output in proportional to DC supply volts.
Make a three-dollar PMT driver.   Make lots.   Now just need $3 PMTs 
array for private neutrino telescope in basement for seeing nude 
stars with outer garments removed.

  Neg ion generator 12Vdc (actually 8KV output unloaded)
  http://www.ebay.com/sch/i.html?_nkw=anion+12v+-car&_sop=15


Also:

Thus Spake Screaming Sun
https://www.youtube.com/watch?v=tIzhemAXDMc


ALso:

Luke Squanchwalker
https://www.youtube.com/watch?v=s_IHi3u7b8w
https://www.youtube.com/watch?v=HOdPtfsMJJM
https://www.youtube.com/watch?v=VxTQKxyJyxw


Naaants inkenyaaaaaaaaaaa ma-bageeeeetee, Baba!


(((((((((((((((((( ( (  (   (    (O)    )   )  ) ) )))))))))))))))))))
William J. Beaty                            SCIENCE HOBBYIST website
billb at amasci com                         http://amasci.com
EE/programmer/sci-exhibits   amateur science, hobby projects, sci fair
Seattle, WA  206-762-3818    unusual phenomena, tesla coils, weird sci

Bill Beaty <billb@eskimo.com> wrote:
> 
> The woods are full of these today:
> 
>   1000W 12-48V 20A ZVS High Frequency Low Voltage Induction Heating Board
>   http://www.ebay.com/sch/i.html?_nkw=1000w+induction+heating&_sop=15
> 
> I wonder if they'll levitate an aluminum chunk before meltin git?   Bend 
> the coil into cone shape.   Probably needs water.

One seller of that inverter says water cooling is needed. I'm going to get 
one- looks like fun. I have a ferroresonant telecom power supply that 
needs a workout.

Might want to check, the original designer of that was retailing them west of 80$.
I was holding off at 80, but was watching it. Never know these days when a product is a clone of a clone.

Steve 

Den s�ndag den 22. november 2015 kl. 02.26.02 UTC+1 skrev srober...@gmail.com:
> Might want to check, the original designer of that was retailing them west of 80$.
> I was holding off at 80, but was watching it. Never know these days when a product is a clone of a clone.
> 
> Steve

the schematic is simple, roughly something like this: 

http://kaizerpowerelectronics.dk/wp-content/gallery/2013_01_17_-_royer_induction_heater/royerIH.gif



-Lasse

On a sunny day (Sat, 21 Nov 2015 13:31:50 -0800 (PST)) it happened Bill Beaty
<billb@eskimo.com> wrote in
<7d265764-4580-446a-9921-226475c931db@googlegroups.com>:

>
>The woods are full of these today:
>
>  1000W 12-48V 20A ZVS High Frequency Low Voltage Induction Heating Board
>  http://www.ebay.com/sch/i.html?_nkw=1000w+induction+heating&_sop=15


Oh that is way cool, now I can finally melt my Plutanium.
 https://www.google.nl/search?q=molten+plutonium&biw=1670&bih=850&tbm=isch&tbo=u&source=univ&sa=X&ved=0ahUKEwjOh9r8vqPJAhVBvxoKHTcBBpEQsAQILw


>I wonder if they'll levitate an aluminum chunk before meltin git?   Bend 
>the coil into cone shape.   Probably needs water.
>
>For a 20A supply I'd rectify AC line with an SCR halfbridge dimmer, 
>crank it down to 48V.  Or maybe a cheap 220:120 kilowatt xfrmr
>hooked backwards.  Those "international voltage converter" big 
>transformers aren't too expensive, especially if they're free in 
>your garage junkpile.


Mm, I got 3 x 7V @ 20A meanwell switch mode supplies in series (for cryocooler)
set to 8 V = 24V @ 20A = 480 W, nice for a solder pot?

What if I melt uranium marbles?
;-)

Oh man, got to get these 

 

>Search eBay for $1  100nS rectifiers from china:
>
>2CL2FL 15kv 100mA
>2CL2FM 20kv 100mA
>2CL2FP 30kv 30mA 
>
>I wasn't aware of these parts above, just the far more expensive 
>HVCA parts 50nS, like UX-FOB, hvca co. now being bought by Dean 
>Tech Inc.

>AHA^2 !!!
>
>Ebay is also full of ultrasonic cleaner replacement pcbs and trans-
>ducers, which if 100W and operated in air while pointed upwards below 
>a metal reflector, can levitate styrofoam beads taken from a beanbag 
>chair.  Yaroo indeed.  Search on:
>
>  ultrasonic 120v driver transducer
>  http://www.ebay.com/sch/i.html?_nkw=ultrasonic+driver+transducer+120v&_sop=15
>
>Probably the above will cause tinnitus in humans after a time unless 
>earplugs.  Might make dog head explode, mice head incinerate.

WHAT?? Can't hear ye


Ultrasonic drilling:
 http://www.imajeenyus.com/workshop/20110516_ultrasonic_drilling/index.shtml

Den s�ndag den 22. november 2015 kl. 08.28.54 UTC+1 skrev Jan Panteltje:
> On a sunny day (Sat, 21 Nov 2015 13:31:50 -0800 (PST)) it happened Bill Beaty
> <billb@eskimo.com> wrote in
> <7d265764-4580-446a-9921-226475c931db@googlegroups.com>:
> 
> >
> >The woods are full of these today:
> >
> >  1000W 12-48V 20A ZVS High Frequency Low Voltage Induction Heating Board
> >  http://www.ebay.com/sch/i.html?_nkw=1000w+induction+heating&_sop=15
> 
> 
> Oh that is way cool, now I can finally melt my Plutanium.
>  https://www.google.nl/search?q=molten+plutonium&biw=1670&bih=850&tbm=isch&tbo=u&source=univ&sa=X&ved=0ahUKEwjOh9r8vqPJAhVBvxoKHTcBBpEQsAQILw
> 
> 
> >I wonder if they'll levitate an aluminum chunk before meltin git?   Bend 
> >the coil into cone shape.   Probably needs water.
> >
> >For a 20A supply I'd rectify AC line with an SCR halfbridge dimmer, 
> >crank it down to 48V.  Or maybe a cheap 220:120 kilowatt xfrmr
> >hooked backwards.  Those "international voltage converter" big 
> >transformers aren't too expensive, especially if they're free in 
> >your garage junkpile.
> 
> 
> Mm, I got 3 x 7V @ 20A meanwell switch mode supplies in series (for cryocooler)
> set to 8 V = 24V @ 20A = 480 W, nice for a solder pot?
> 

this guy did it: 

https://www.youtube.com/playlist?list=PLHGVjZ_tV_gy_50UzOqswMe_M-Ou7hPCr


-Lasse

On a sunny day (Sun, 22 Nov 2015 06:50:50 -0800 (PST)) it happened Lasse
Langwadt Christensen <langwadt@fonz.dk> wrote in
<4a6e5b07-f726-498c-8843-74239de77668@googlegroups.com>:

>De 
>> Mm, I got 3 x 7V @ 20A meanwell switch mode supplies in series (for cryoc=
>ooler)
>> set to 8 V = 24V @ 20A = 480 W, nice for a solder pot?
>> 
>
>this guy did it: 
>
>https://www.youtube.com/playlist?list=PLHGVjZ_tV_gy_50UzOqswMe_M-Ou7hPCr

Very nice, watched all those videos,
Lipo powered!


>-Lasse
>
>

Den s�ndag den 22. november 2015 kl. 17.32.07 UTC+1 skrev Jan Panteltje:
> On a sunny day (Sun, 22 Nov 2015 06:50:50 -0800 (PST)) it happened Lasse
> Langwadt Christensen <langwadt@fonz.dk> wrote in
> <4a6e5b07-f726-498c-8843-74239de77668@googlegroups.com>:
> 
> >De 
> >> Mm, I got 3 x 7V @ 20A meanwell switch mode supplies in series (for cryoc=
> >ooler)
> >> set to 8 V = 24V @ 20A = 480 W, nice for a solder pot?
> >> 
> >
> >this guy did it: 
> >
> >https://www.youtube.com/playlist?list=PLHGVjZ_tV_gy_50UzOqswMe_M-Ou7hPCr
> 
> Very nice, watched all those videos,
> Lipo powered!
> 

https://youtu.be/WQMFhMYfKMo

-Lasse

On a sunny day (Sun, 22 Nov 2015 08:40:37 -0800 (PST)) it happened Lasse
Langwadt Christensen <langwadt@fonz.dk> wrote in
<a87fd382-1119-494a-b4ad-b336a62c8f0d@googlegroups.com>:

>Den s&#4294967295;ndag den 22. november 2015 kl. 17.32.07 UTC+1 skrev Jan Panteltje:
>> On a sunny day (Sun, 22 Nov 2015 06:50:50 -0800 (PST)) it happened Lasse
>> Langwadt Christensen <langwadt@fonz.dk> wrote in
>> <4a6e5b07-f726-498c-8843-74239de77668@googlegroups.com>:
>> 
>> >De 
>> >> Mm, I got 3 x 7V @ 20A meanwell switch mode supplies in series (for cr=
>yoc=
>> >ooler)
>> >> set to 8 V = 24V @ 20A = 480 W, nice for a solder pot?
>> >> 
>> >
>> >this guy did it: 
>> >
>> >https://www.youtube.com/playlist?list=PLHGVjZ_tV_gy_50UzOqswMe_M-Ou7hP=
>Cr
>> 
>> Very nice, watched all those videos,
>> Lipo powered!
>> 
>
>https://youtu.be/WQMFhMYfKMo

I think he makes that error with the alligator leads (from China too possibly),
at that current those drop several volts,
on the ebay sellers page it says 'beware of slow rizing switchmodes, goes bang,
and:
too low voltage kills it (no oscillation).

He was heavely loaded because he already had the load (piece of metal tubing)
in it when he switched on.
 http://www.ebay.com/itm/1000W-12-48V-20A-ZVS-High-Frequency-Low-Voltage-Induction-Heating-Board-Module-/361287263867?hash=item541e66267b:g:YpoAAOSwqu9VRs2H&autorefresh=true


I may perhaps order one...
Just to bake fish on the ocean and recharge via solar panel.

Den s�ndag den 22. november 2015 kl. 20.00.22 UTC+1 skrev Jan Panteltje:
> On a sunny day (Sun, 22 Nov 2015 08:40:37 -0800 (PST)) it happened Lasse
> Langwadt Christensen <langwadt@fonz.dk> wrote in
> <a87fd382-1119-494a-b4ad-b336a62c8f0d@googlegroups.com>:
> 
> >Den s&#4294967295;ndag den 22. november 2015 kl. 17.32.07 UTC+1 skrev Jan Panteltje:
> >> On a sunny day (Sun, 22 Nov 2015 06:50:50 -0800 (PST)) it happened Lasse
> >> Langwadt Christensen <langwadt@fonz.dk> wrote in
> >> <4a6e5b07-f726-498c-8843-74239de77668@googlegroups.com>:
> >> 
> >> >De 
> >> >> Mm, I got 3 x 7V @ 20A meanwell switch mode supplies in series (for cr=
> >yoc=
> >> >ooler)
> >> >> set to 8 V = 24V @ 20A = 480 W, nice for a solder pot?
> >> >> 
> >> >
> >> >this guy did it: 
> >> >
> >> >https://www.youtube.com/playlist?list=PLHGVjZ_tV_gy_50UzOqswMe_M-Ou7hP=
> >Cr
> >> 
> >> Very nice, watched all those videos,
> >> Lipo powered!
> >> 
> >
> >https://youtu.be/WQMFhMYfKMo
> 
> I think he makes that error with the alligator leads (from China too possibly),
> at that current those drop several volts,
> on the ebay sellers page it says 'beware of slow rizing switchmodes, goes bang,
> and:
> too low voltage kills it (no oscillation).
> 
> He was heavely loaded because he already had the load (piece of metal tubing)
> in it when he switched on.
>  http://www.ebay.com/itm/1000W-12-48V-20A-ZVS-High-Frequency-Low-Voltage-Induction-Heating-Board-Module-/361287263867?hash=item541e66267b:g:YpoAAOSwqu9VRs2H&autorefresh=true
> 

yeh, if it doesn't start it is a dead short

> 
> I may perhaps order one...
> Just to bake fish on the ocean and recharge via solar panel.

the schematic is very simple, you can probably find most of the parts 
in your pile of parts 

-Lasse