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

Cit II Doubler Filter

Here's the model of the factory CIT II filter. I had to guesstimate the DCR of the choke and ESR of the caps. I'll be glad to change any of the values or insert a hash filter using your components. Output Z of this design isn't particularly good, probably swings quite a bit when a 30Hz note is present. Then again, it was only $160 in kit form. :(

Buy Chinese. Bury freedom.

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