The Valve Wizard

The power transformer is at the heart of every valve amplifier, yet it receives little attention from enthusiasts. But if you're serious about amplifiers, then you should be serious about power transformers. Hopefully the following article will serve as a no-pain introduction that covers all the essential aspects of 'iron', including how they work, what the ratings mean, and just what is saturation?
Also, a good understanding of power transformers is an essential foundation for understanding output transformers too.

This article is the first chapter from my book Designing Power Supplies for Tube Amplifiers.
Click here to view the chapter (640kb PDF)
(To download a copy, right click the link and select "save target as").

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