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Linear Audio Vol 0 is our first printed bookzine dedicated to technical audio and perception. This first issue has more than 12 insightful articles by an international team of authors: Solid State: Nelson Pass comes up with a tribute to the single ended triode power amp by replacing hollow state with silicon carbide in The Arch Nemesis*, while Douglas Self cuts through the confusion and handwringing by showing how Inclusive Compensation can be successfully applied. Joachim Gerhard goes Down the Rabbit Hole to get the lowest MC-preamp noise this side of liquid helium cooling*. Tube technology: Air Polisois extends his DC-coupling and Common Transformer developments in the deceptively simple Mini-Simplex, while Stuart Yaniger gives you the definite deal on The Truth about the Humble Cathodyne. Meanwhile, Frank Blohbaum shows you A New Low-Noise Circuit Approach for Pentodes with his BestPenthode circuits. Loudspeakers and perception: Jean-Claude Gaertner embarked on a wide-ranging project for an active 4-way, DSP driven, remotely controlled system Project21. The first part describes the satellites. Siegfried Linkwitz contributes his landmark paper on STEREO - From live to recorded and reproduced - What does it take? - this should be the basis for many a discussion of what is and what is not possibly in stereo, and why. Test Equipment: Bob Cordell developed his Distortion Magnifier, a simple add-on to any distortion measurement setup increasing the resolution by 20 or even 40dB*. Book reviews: Andy Bryner reviews Douglas Self's latest opus Small Signal Audio Design and likes what he reads, while Bob Cordell's Audio Power Amplifier Design is waiting in the wings to be revealed. Tips & Tricks: If, like Ed Simon, you have more ic's and transistor types than you can keep track off, you'll love his IC holder notebook. Musings: Rene Wouda asks "Do you remember your first single?" . A bit tongue-in-cheek but thoughtful nevertheless.