[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [TCML] Microwave caps

Jim -

Still something wrong with your math ......
Assuming two series-connected .5uF capacitors per string, each string will have a value of .25uF.
With a total of 90 capacitors available, one could assemble 45 strings, yielding a total capacitance of 45 * .25 = 11.25uF.
Charging the entire 11.25uF capacitor bank to 10kv will provide a stored energy of 563 joules (lower case j). 

Regards,
Herr zapp
----- Original Message ----- From: "Jim Mora" <wavetuner@xxxxxxxxx> 
To: "'Tesla Coil Mailing List'" <tesla@xxxxxxxxxx>
Sent: Friday, September 04, 2009 1:40 AM
Subject: RE: [TCML] Microwave caps



Whoops, I was thinking 2 caps would handle 10KV from what I have been
reading. The 5 crept in as it is the way we would do it if we had a lot more 
caps. This setup would leave 45 pairs @.5uf each. @22.5uf and about 1125
Joules as stated. I stand firmly corrected on "Joules" misspelling.
Jim Mora
We need more mind readers in the list ;-^)

-----Original Message-----
From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On Behalf
Of bartb
Sent: Thursday, September 03, 2009 6:18 PM
To: Tesla Coil Mailing List
Subject: Re: [TCML] Microwave caps

I don't quite understand the post either.
For 90 caps with 10.5kV rating, then 18 strings with 5 per string.
Results in 1.8uF, 90j.
Using 0.5uF/2100V MO caps.

Regards,
Bart

Quarkster wrote:

Jim -

I don't understand your post; can you explain the math? How did you
arrive at the "10kv" rating? With five series-connected caps per string?

Joel's caps are predominently .5uF at 2,100V.

(Incidentally, the unit of energy is "joule".)

Regards,
Herr Zapp


----- Original Message ----- From: "Jim Mora" <wavetuner@xxxxxxxxx>
To: "'Tesla Coil Mailing List'" <tesla@xxxxxxxxxx>
Sent: Wednesday, September 02, 2009 10:42 PM
Subject: RE: [TCML] Microwave caps



Hi Joel,

Lets see, if you series 2 (10kv) easy- .5uf*(45 caps)=22uf= 1100 Jules-
definitely a worthy ring launching, HD disk plates, or coin shrinker.
Please
be very careful with this as it is absolutely lethal. Be sure to
discharge
the caps a couple of times. The internal resistor will discharge them
over
time.

Jim Mora

-----Original Message-----
From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On
Behalf
Of Steve Ward
Sent: Wednesday, September 02, 2009 4:07 PM
To: Tesla Coil Mailing List
Subject: Re: [TCML] Microwave caps

First thing: i cannot be held responsible for anything you do with your
capacitors, but here is what i did with some of mine:

http://www.stevehv.4hv.org/MOCs.htm

As the previous poster mentioned, id highly suggest a very sturdy
enclosure
built to contain shrapnel and oil in the event that the weakest
capacitor
"lets go".  Pleeeeeeeease be extremely careful with these things when
you
gang them up, there is some very serious energy storage.  Other than
that,
MOCs seemed to work great for launching rings and other Not-So-Hard-Core
pulse power stuff. Basically the caps are junk anyway, so why not have a
little fun with them for awhile?  Just really keep safety in mind!!!

Steve

On Wed, Sep 2, 2009 at 5:04 PM, <nancylavoie@xxxxxxxxxxx> wrote:


I'm pretty certain I've seen them used in coin shrinkers.May be worth a
google search if interested.If I recall though none of the projects
I saw
used anywhere near ninety caps but perhaps you'll end up with a more

robust

end result than those before you.I would imagine ring launchers and
rail
guns are also feasible.Probably wouldn't hurt to place your caps in a

sturdy

enclosure no matter what you build.Just in case! Wyatt
------Original Message------
From: Joel Torgeson
Sender: tesla-bounces@xxxxxxxxxx
To: Tesla Mailing-list
ReplyTo: Tesla Coil Mailing List
Subject: [TCML] Microwave caps
Sent: Sep 2, 2009 4:09 PM

A while ago I posted a question about the poor performance of my
coil, and
through the list's help, found out that microwave oven caps don't
work in
the tank circuit.
So here's my question: What should I do with 90 MWO caps? I have heard

that

they are used in voltage doublers and filters, but is there another

project

I could use them in? I have my eye on building a Marx generator, so
would
these work for that? Or any other project you all can think of?

Thank you for your time!

 Sincerely,
Joel Torgeson




_______________________________________________
Tesla mailing list
Tesla@xxxxxxxxxxxxxx
http://www.pupman.com/mailman/listinfo/tesla


Sent from my Verizon Wireless BlackBerry
_______________________________________________
Tesla mailing list
Tesla@xxxxxxxxxxxxxx
http://www.pupman.com/mailman/listinfo/tesla



_______________________________________________
Tesla mailing list
Tesla@xxxxxxxxxxxxxx
http://www.pupman.com/mailman/listinfo/tesla

_______________________________________________
Tesla mailing list
Tesla@xxxxxxxxxxxxxx
http://www.pupman.com/mailman/listinfo/tesla


_______________________________________________
Tesla mailing list
Tesla@xxxxxxxxxxxxxx
http://www.pupman.com/mailman/listinfo/tesla


_______________________________________________
Tesla mailing list
Tesla@xxxxxxxxxxxxxx
http://www.pupman.com/mailman/listinfo/tesla

_______________________________________________
Tesla mailing list
Tesla@xxxxxxxxxxxxxx
http://www.pupman.com/mailman/listinfo/tesla 


_______________________________________________
Tesla mailing list
Tesla@xxxxxxxxxxxxxx
http://www.pupman.com/mailman/listinfo/tesla