Papers, Articles, & Talks

Updated: 20 June 2016
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A list of the papers and articles I have published in Wireless World/Electronics World, Elektor, the JAES, and Jan Didden's Linear Audio. Constructional notes and pictures are available for some project-based articles.

WIRELESS WORLD/ELECTRONICS WORLD

TITLE

SUBJECT

PUBLISHED

NOTES

PICTURE

"A Compressor/limiter"FET-based compressorDec 1975
"An Advanced Preamplifier"Bipolar discrete op-amps: MRP1Nov 1976NOTESPICTURE
"Additions to Advanced Preamplifier"Minor add-ons to MRP1.Oct 1977
"A High-Performance Preamp"Bipolar conventional: MRP4Feb 1979NOTESPICTURE
"A Precision Preamplifier"5532 op-amps: The MRP10.Oct 1983NOTESPICTURE
"Moving-Coil Head Amplifier"Bipolar/opamp hybrid, v low THDDec 1987
Science & SubjectivismSee "Pseudoscience"July 1988
Sound MOSFET Design"Hybrid BJT/FET amplifier outputSept 1990
"Inside Mixing Consoles"Some secrets of mixer designApr 1991
Distortion In Power Amplifiers 1The sources of distortionAug 1993
Distortion In Power Amplifiers 2The input stageSep 1993
Distortion In Power Amplifiers 3The voltage-amplifier stageOct 1993
Distortion In Power Amplifiers 4Output stages 1Nov 1993
Distortion In Power Amplifiers 5Output stages 2Dec 1993
Distortion In Power Amplifiers 6The remaining distortionsJan 1994
Distortion In Power Amplifiers 7Compensation. A Class-B designFeb 1994NOTESPICTURE
Distortion In Power Amplifiers 8A Class-A design exampleMar 1994
Common-Emitter AmpsDeep matters of topology.July 1994
"High-speed Audio Power"Fast amplifiers & slew-rate.Sept 1994
"Distortion Off The Rails"Power Supply RejectionMar 1995
The Linearity CompetitionFETs are less linear than BJTsMay 1995
"Trimodal Audio Power" Part 1ClassA/AB/B power ampJune 1995NOTESPICTURE
"Trimodal Audio Power" Part 2ClassA/AB/B power ampJuly 1995
Olsson 2-stageCritique: I don't like it.Sept 1995
Thermal Dynamics Part 1Bias temp compensationMay 1996

Thermal Dynamics Part 2& thermal simulation.June 1996
Precision Preamp '96 I5532 op-amps: The MRP-11.Jul 1996NOTESPICTURE
Precision Preamp '96 II...the best preamp ever?Sep 1996
Thermal Dynamics Part 3Variable tempco biasing.Oct 1996
Night Thoughts on Crossover Distn.Dark thoughts indeedNov 1996
Load-Invariant power ampLow THD into 3 or 4 OhmsJan 1997NOTESPCB PIC
"Overload Matters"RIAA preamp overloadFeb 1997
Balanced line inputs and outputs IThe many variations on themApr 1997
Balanced line inputs and outputs IIPlus grounding info May 1997
Audio power interface I: amplifiersOutput networks etc. Sept 1997
Audio power interface II: cablesHow they really work.Oct 1997
Audio power interface III: speakersWhat they do to amps.Nov 1997
Distortion Residuals.Identifying distortionsJan 1998 p32
Excess speaker currents.They are not so mysteriousFeb 1998 p98
Class DistinctionAmplifier classification schemeMar 1999
Muting RelaysControlling them intelligentlyJuly 1999
Cool Audio PowerPower partition diagrams.Aug 1999
Audio PowerPower partition: reactive loadsDec 1999
Output Coil crosstalkHow big a problem?Oct 2001
Class G amplifiers: Part 1Save power...Dec 2001
Class G amplifiers: Part 2...but get low distortionJan 2002
Class G Mode IndicatorLights if high rails usedFeb 2002
Amplifier Input CurrentsA serious cause of distortionMay 2003
Analogue Switching: Part 1How to do it right...Jan 2004
Analogue Switching: Part 2...with low distortionFeb 2004
Class XD: a New Kind of Power AmplifierCrossover displacement technologyNov 2006

Between 2004 and 2006 EW decided to stop paying its authors, so I decided to stop writing for them.

ELEKTOR

TITLE

SUBJECT

PUBLISHED

"The 5532 OpAmplifier: Part 1"Paralleled 5532s for a power ampOct 2010
"The 5532 OpAmplifier: Part 2"Paralleled 5532s for a power ampNov 2010
"Preamplifier 2012: Part 1"The line input, tone-control, and volume section: MRP12April 2012
"Preamplifier 2012: Part 2"MM and MC disc inputs: MRP12May 2012
"Preamplifier 2012: Part 3"Level indicator and PSU: MRP12June 2012

You can find Elektor here

LINEAR AUDIO

TITLE

SUBJECT

VOLUME

PUBLISHED

"Inclusive Compensation & Ultra-Low Distortion"Compensation including the output stageVolume 0Sept 2010
"Self-Improvement for Capacitors"Linearity improving with useVolume 1Apr 2011
"Low noise preamplifier"With variable-frequency tone controlsVolume 5April 2013
"Optimising RIAA realisation"Some RIAA networks are more economical than othersVolume 7Mar 2014
"The Devinyliser"Rumble filtering by stereo crossfeedVolume 11April 2016

You can find Jan Didden's Linear Audio journal here

JOURNAL OF THE AUDIO ENGINEERING SOCIETY

TITLE

SUBJECT

PUBLISHED

"Ultra-Low Noise Amplifiers & Granularity Distortion"Proving "granularity distortion" does not exist by amplifying tiny signalsNov 1987
p907-915

LECTURES AND MASTERCLASSES
(Powerpoint presentations)

TITLE

LOCATION

DATE

Power Amplifier Design masterclassAmsterdam AES convention20 May 2008
Active Crossover DesignBurning Amp festival (San Francisco)1 Oct 2011
Balanced Interconnects masterclassNew York AES convention20 Oct 2011
Thermal distortion in power amplifiersWarsaw AES convention10 May 2015
The Devinyliser: rumble filtering by stereo crossfeedParis AES convention6 June 2016

These Powerpoint presentations can be downloaded from the front page of the Amplifier Institute.

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