At 10:51 PM 7/21/2010 Wednesday, Richard A Jones wrote: >Oh, three things: it must be "two stage." All Marshall Brass 290s are two-stage, it's a major defining characteristic. :-) d ps -- Larry Alofs pointed out to me that the state of the art in capacitor manufacture has gotten to the point where a capacitor to do what you were talking about with the delayed-off light would only be the size of say a quart thermos, and you can buy one today for perhaps $60. Still completely impractical for that usage, but a far cry from filling the front seat. I am gobsmacked -- one-farad five-volt capacitors that are about two inches by 3/4. If you'd told someone that in 1965, say, you'd have been laughed out of town. |
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