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Hmmmm...

"This arrangement reduces the ripple in the current by a factor of five to ten over that obtained with the same choke and condensers connected in the usual manner of (A)."

Does this mean simply that winding two identical coils on a single core more than doubles their total inductance? In other words (common knowledge today), the inductance wound on a single core increases as the square of the turns? Folks knew that back then, right?

"The increased filter action is due to a neutralizing effect between the induced a-c components of the two portions of the choke. that is, a rather strong induced a-c component flows through the portion marked L1, the coupling of which to L2 neutralizes, to a large degree, the induced a-c voltage component therein, so that the output pulsations are reduced."

Well, this sounds like much the same thing. Mutual coupling between the turns increases the inductance beyond the two same coils uncoupled.

I haven't read through the entire patent yet, but a quick skim didn't reveal anything materially different. What a shame there are no values for the caps; it would be nice to see if this might have been resonant. Maybe further study of the doc will show more. You're right, it's not an easy read.


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  • Hmmmm... - Triode_Kingdom 20:29:56 04/21/07 (0)


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