Previously Featured Builds

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Mario Ninic

Mario Ninic

The Zen lightenment amplifier from Zen variations-part 1 (page 2 fig.5) I am using 2 300w Sylvania light bulbs (one… More...
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Matjaz Gerzeli

Matjaz Gerzeli

Intro -"What is the sound of one transistor clapping?" -"Wonderful !" When I saw the Zen Revisited schematics for the… More...

Build a MOSFET Citation 12 — Nelson Pass / 1981

Audio Amateur has published a number of projects modifying popular kits, usually Dynaco's. Obviously it is much less expensive to use the chassis and power supply, pots, connectors, switches, PC boards, and heat sinks that can be had for the price of a kit than to buy the components individually or have them made. Creating a one-off copy commercially typically costs as much as making 10 copies of the same item, because the dominant costs are design and set-up time which do not increase with quantity. Small wonder then that most technicians and designers who write for this and similar… More...

Balanced Zen Line Stage — Nelson Pass / 1997

The popularity of the Zen projects points out the interest in very simple linear circuits. They are intended to fuel that interest. The Zen, Bride of Zen, and Son of Zen have been explorations in how much objective and subjective performance can be achieved with a single gain stage. This extreme simplicity has an aesthetic appeal, which speaks to the purist in audiophiles, and the presumption that simple circuits sound better. At least one "objectivist" has complained (objected?) that the Zen projects do not measure up compared with more sophisticated and complex amplifiers. This is mostly true, but beside the… More...

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