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Do It Yourself (DIY) paradise for tube and SET project builders.

"It seems a choke-input filter (a real one!) is a hard act to follow"

That is my experience, without any reservations, across 30 years of actual work.

Talked at length with Tim de Paravancini at last year's European Triode Festival, and we found we both agreed on the importance of choke input filters. But he's even more emphatic about this than me. I told him that in the "TubePreamp CookBook" I write that the choke should be at least the same physical size/weight of the power transformer - and he contradicted me: "No - it should be twice the size/weight!"

Regards, Allen


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