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Here is most of the stuff I have published, not including the product manuals which have seen print (you can access those under Products). Writing them was fun and educational – I hope reading them is also.

The older pieces have recently been transcribed to digital – as the original art was not obtainable, we resorted to scanning the printed article for the diagrams, so please bear with us on their quality and the occasional typo.

2022 DIY Front End 2022

2022 DIY Power Supply Filter and Thump Relay

2022 Speaker Camp 2022

2022 Sony VFET OS2

2021 DIY ACA mini

2021 DIY H2 Generator v2

2021 DIY Sony VFET pt 2

2021 DIY Sony VFET pt 1

2020 DIY Biamp 6-24 Crossover

2020 The Square Law

2019 Leaving Class A 2019 redux

2019 ACP+

2019 H2 Harmonic Generator - Revised

2019 DIY Nutube Preamp

2018 FAOW-V2 by Mike Rothacher

2018 The Venerable Triode

2018 H2 Generator

2018 Korg Nutube Preamp

2018 LX-mini Analog Crossover

2016 DIY SONY VFET

2015 Zen With GA10JT12

2015 Talk at CAS

2015 Sony VFETs part 2

2014 Sony VFETs part 1

2013 Sony VFET 40 Year Commemorative Amplifier

2013 The Beast With a Thousand JFETs

2012 F6 Talk at Burning Amp Festival 2012

2012 Amp Camp Amp 1

2012 SIT Nemesis

2012 L300 Renovation

2012 F5 Turbo

2011 SIT Introduction.html and SIT Introduction.pdf

2011 Burning Amp part 3

2011 Slot Loaded Open Baffle

2011 Zen I/V Converter

2010 Arch Nemesis Amplifier

2010 De-Lite Amplifier

2010 The Sweet Spot

2009 Burning Amp part 1

2009 Burning Amp part 2

2008 Audio Distortion and Feedback

2008 B1 Buffer Preamp

2008 B1 Gerber Files

2008 Leaving Class A

2006 Zen Variations 9

2005 PLH Amplifier

2005 Zen Variations 8

2004 Current Source Amplifiers and Full Range Drivers

2004 Current Source Crossovers

2004 The Kleinhorn Part 1 and Part 2

2004 Zen Variations 7

2004 Zen Variations 6

2003 Zen Variations 5

2004 The J-Low Loudspeaker and Assembly (with Dana Kruse)

2003 Mosfet Testing

2002 El Pipe-O (with Kent English)

2002 Like Peanut Butter and Chocolate

2002 Zen Variations 4

2002 Zen Variations 3

2002 Zen Variations 2

2001 Zen Variations 1

2001 Power Supplies

2000 A40 Parts Subs

1998 DIY Op Amps

1998 Super-Symmetric Amplification

1997 Balanced Zen Line Stage

1997 Son of Zen

1995 Single-Ended Class A

1994 Bride of Zen

1994 Zen Amp redux

1994 Zen Amplifier

1993 Matching Devices

1992 A75 Amplifier Part 1 and Part 2 (with Norman Thagard)

1982 Phase Coherent Crossovers

1981 Mosfet Citation 12

1981 Speaker Cables

1978 Cascode Amplifier

1978 A40 Amplifier

1977 A20 Amplifier

(C) 2018 General Amplifier