/designs/legacy/ Recent content in Legacy on Decades of Musings on HiFi Hugo en Mon, 02 Nov 2026 00:00:00 +0000 /designs/legacy-dht-power-amplifier/ Mon, 02 Nov 2026 00:00:00 +0000 /designs/legacy-dht-power-amplifier/ <p><figure class="fig"><a href="legacy-300b.jpg"><img src="legacy-300b.jpg" alt="Photograph: the Legacy amplifier on a polished steel chassis with wooden side cheeks, two 300B output valves, pentode drivers and rectifiers" loading="lazy"></a><figcaption>The Legacy with 300B output valves.</figcaption></figure> </p> <p>This design started life as a fairly faithful reproduction of the &ldquo;Legacy&rdquo; amplifier from La Maison de l&rsquo;Audiophile, designed by Wilhelm Walters and Jean-Constant Verdier. It is among the very best commercially produced 300B amplifiers I have ever encountered.</p> <h2 id="credit-where-it-is-due">Credit where it is due</h2> <p>Thanks to David Chessel of Alema Ltd (Audion, Edison, AMP) for providing the mechanical parts and transformers of the Edison 60 kit, which were used as the basis for the amplifier. Thanks are also due to Eric Barbour of Svetlana for samples of the Svetlana 300B, and to George Hawthorne for a pair of 45 valves. Another big round of thanks to my friend Jon Finlayson for helping to obtain many of the parts, especially the custom-made Ansar Supersound polypropylene capacitors used throughout the amplifier, and for getting me two pairs of the superb Siemens C3m pentode from Australia. Thanks also to Jean-Constant Verdier for sharing his design for the power supply in Sound Practices and his design of the EL84 driver stage. And I am indebted to Ronald Koridon for suggesting this amplifier to me.</p>