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RE: The question is why 200 henries?

Just realized I did not address the elliptical load line issue.

In a parallel feed arrangement, the output capacitor interacts with the plate choke. This interaction can be optimized to maintain a nearly resistive load as seen by the tube, at least within the pass band and assuming a resistive speaker load. For the same inductance, parafeed can perform much better than series feed, with respect to elliptical load lines.

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  • RE: The question is why 200 henries? - Paul Joppa 14:34:07 06/04/16 (0)
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