IBM 029 progress
eric at brouhaha.com
Wed Jun 10 19:45:51 CDT 2009
Warren Wolfe wrote:
> 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.
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