Stubblefield coils (bifilar) and speculations

[Pirate88179]

@ All:

Found this here:http://www.sparkfun.com/commerce/product_info.php?products_id=746

10 F super cap. for $4.95 ea.

Super Capacitor - 10F/2.5V

SKU#: COM-00746

Price: $4.95

10-99: $4.46 each (10% off)
100 or more: $3.96 each (20% off)

Description: Yes you read that correctly - 10Farad capacitor. This small cap can be charged up and then slowly dissapated running an entire system for hours. Combine two in series for 5F/5V. Do not over voltage or reverse polarize these capacitors.


Documents: 10F Super Cap Datasheet

Dimensions: 13x33.5mm

[Pirate88179]

@ All:

3,000 FARED!!!!!!!!!!


Maxwell Technologies BCAP3000 Ultracapacitors
Image of BOOSTCAP BCAP3000

    * 2.7 Volt operating voltage*
    * Over 1 million duty cycles
    * 3000 Farads
    * Threaded terminal or weldable post versions
    * Ultra-low internal resistance

BCAP3000 E270 features at a glance
Capacitance (Farads)    3000


Bill

[resonanceman]

@ Gary:

Awwww come on, you mean we can't blow up some caps?  Where's the fun in that? (Ha ha)  Like I said, I am still learning here so it is quite possible that I may blow something up before it's over.  There are many things I still don't understand about capacitors, or super caps.  Like, for example, your 5 F 270 volt cap........if I were to hook up 3 volts to it and let it sit there and charge, would the max. voltage on the cap be just 3 volts?  Or, would it be able to continue to charge to the full 270 volt capacity?  In other words, can you fill a cap. or super cap up with more volts than you are putting in?  Like a small hose of water filling a large bucket...the bucket will fill eventually...is this the same with caps?  I can't find anything about these questions in any of my electronics books, or on the net.  So much to learn.

Bill

Bill

If  you  charge any cap  with  a steady  3 V    you  will end up  with a cap charged to 3 volts ......no magic here .

Now ....... if you charge 2 caps to 3  V and   connect them  in  series    then   dump  them  into  a 3rd cap    you will have well over  3   V    this is  known  as a  Tesla  switch  or   Scalar battery charger   
( most   often  Tesla switches  are  built with  batterys . ) 

The  reason  I was going to start  with a relativly  high  voltage cap is   because I have  have heard that there  can be  large variations  in  the power  that can  be  received from the  air or earth .........  AC run caps are  relatively big .....and  tough .......but also  relatively  cheep ........   the   only thing   you have to be careful  of is  if you   do overload one .......they get messy ......they can  spray  the oil  inside them all over the room ..... That oil is NOT  something  you want to breath .

About  blowing  up caps ...........did you know that if you  connect a small  low voltage cap  across   110 V   (  house wiring  )   it  will blow up like a firecracker ?   
  I don't remember  how small  you  have to go to get  a bang out of it . 



gary

[resonanceman]

Bill

Thanks  for the  links for  supercaps

here is a  different kind of cap I found .

http://www.evanscap.com/hybrid.htm


gary

[Pirate88179]

@ Gary:

Thanks for the explanation on the caps.  I was not sure.  That is a cool link too, I bookmarked it for future reference.  I was just amazed at the second type of super cap I found with 3,000 F, I thought that 5.5 F or 10 F was big, but 3,000?  I can't wait to play with some of these.  Thanks.

Bill