ARTICLES / PROJECTS
2008 The Amazing FET Circlotron Contruction, Construction Cont., Cad Files by Michael Rothacher
2008 B1 Buffer Preamp by Nelson Pass
2008 Leaving Class A by Nelson Pass
2006 Zen Variations 9 by Nelson Pass
2005 The PLH Amplifier: The classic JLH - Pass style by Nelson Pass
2005 Zen Variations 8: The Power JFET Amplifier by Nelson Pass
2004 Current Source Amplifiers and Sensitive Full-Range Drivers by Nelson Pass
2004 Current Source Crossover Filters by Nelson Pass
2004 The KleinHorn Part 1 and Part 2 by Nelson Pass
2004 Zen Variations 7: More Son of Zen and SuperSymmetry by Nelson Pass
2004 Zen Variations 6: Son of Zen gets Xploited by Nelson Pass
2004 Soldering Tips by Karen Douglass
2003 Zen Variations 5: Complementary Zen (Hi Res) or (Low Res) by Nelson Pass
2003 The J-Low and the Assemply Document by Nelson Pass and Dana Kruse
2003 Mosfet Testing by Nelson Pass
2002 The Legend of EL PIPE-O by Kent English & Nelson Pass
2002 Ground Loops by Kent English
2002 Like Peanut Butter and Chocolate by Nelson Pass
2002 Trouble Shooting by Kent English
2002 Zen Variations 4: The Penultimate Zen and the Gerber files by Nelson Pass
2002 Zen Variations 3: Active Supply Regulation by Nelson Pass
2002 Zen Variations 2: The Penultimate Zen's Current Source by Nelson Pass
2001 Zen Variations 1: Zen-lightenment by Nelson Pass
2001 The Pearl Phono and Gerber Files + Self Extracting ZIP by Wayne Colburn
2001 Power Supplies by Nelson Pass
2000 A40 Part Substitutions by Nelson Pass
1998 D.I.Y. Op Amps by Nelson Pass
1998 Super-Symmetric Amplification by Nelson Pass
1997 Balanced Zen Line Stage (BOSOZ) and Gerber Files by Nelson Pass
1997 Son of Zen by Nelson Pass
1995 Single Ended Class A by Nelson Pass
1994 Bride of Zen by Nelson Pass
1994 Zen Amplifier Revisited by Nelson Pass
1994 The Zen Amplifier by Nelson Pass
1993 Matching Devices by Nelson Pass
1992 A75 Part 1 and Part 2 by Norman Thagard & Nelson Pass
1982 Phase-Coherent Crossover Networks by Nelson Pass
1981 Build a MOSFET Citation 12 by Nelson Pass
1980 Speaker Cables: Science or Snake Oil? by Nelson Pass
1978 Cascode Amplifier Design by Nelson Pass
1978 The Pass A-40 Power Amplifier by Nelson Pass
1977 Construct A Class-A Amplifier by Nelson Pass
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Index
The JLH Class-A Articles
The Original Article - Wireless World April 1969
Oscilloscope Traces & Photographs from the 1969 Article
Letter to the editor - Wireless World October 1969
The Postscript - Wireless World December 1970
The Update - Electronics World September 1996
A Little Reminiscing - Electronics World May 2000
Power Supplies for the JLH Class-A
Additional Information for the JLH Class-A
JLH Class-A - Single-ended or Push-pull?
JLH Class-A Update
A JLH Class-A for the Quad ESL57
Transistor Substitutes
D C Voltages (for testing / fault-finding)
Earthing
Constructors’ Comments – Sound Quality
Contributed Articles
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