[Elecraft] potentially interesting (sorry, bad pun)

[Fred Jensen]

Steve wrote:
> No, I wrote correctly.  25 FARADS.
> 
> But, this is SMALL in comparison.  Elna offers 600F @ 2.5V.  About 5" long x
> 1.5" diameter!
> 
> YES, 600 Farads.  I kid you not.  I did a double-take on this one.  Really!
> 
> See:   http://www.elna.co.jp/en/ct/pdf/DPe.pdf

Hmmm ... I wonder what the inductance of the 600F cap is?  If it's 
really low, and you could short the terminals with a screwdriver at 10 
milliohms, that would be a pulse of a couple hundred amps, and likely a 
large electrical display.  Conversely, if it is discharged, you probably 
wouldn't want to connect it directly across a 2.5V power supply.  I 
believe capacitors like this are used in the hot rods that boom down the 
road with multi-hundred watt amplifiers.  I'll ask our oldest grandson 
... such electronics take up the whole trunk of his car.

Fred K6DGW
Auburn CA CM98lw