11 Jun
2009
11 Jun
'09
11:15 p.m.
Eric Smith wrote:
Hmmm... Okay. I'll take your word on this. Thanks for the info.
Warren
Warren Wolfe wrote:
Gee, I feel so.... no longer supported.
Erm... I doubt this. I saw a 2 farad cap at a
surplus place in
Lima, Ohio. It was rated at 12 volts, and looked like a sawed-off
oil drum.
That's much older technology. As others here have observed, you can
now get a 100F capacitor that is quite compact, though they have
voltage ratings between 2V and 2.7V. I think
there's some sort of square-cube thing going on here that
makes ever-increasing values of capacitance ever huger.
Not really. For a given
technology, the volume is roughly linearly
related to the product of the capacitance and voltage.