The Class-A Amplifier Site

The Class-A Amplifier Site

This page was last updated on18 January 2007

The Published Articles of John Linsley Hood

Following the sad news regarding the death of Mr J L Linsley Hood MIEE on 11/3/2004, I thought that a comprehensive index of his published works would be a fitting addition to this website. I have therefore compiled the following list from my own archive of magazine articles, an on-line index of more recent Electronics World articles, web searches and input from various helpful people around the world.

Please help! This list is not complete! If you can fill-in any of the blanks or have details of other articles not included below please contact me via the address at the bottom of this page so that I can make this index as comprehensive as possible.

A link for those who prefer their lists to be sorted by category.

Articles

Title	Publication	Issue / Page
Simple Class A Amplifier	WW	Apr ‘69 p148
Modular Preamplifier Design	WW	Jul ‘69 p306
Simple Class AB Amplifier (letter to Editor)	WW	Feb ’70 p74
Combined Low-Pass and High-Pass Filter (“Circuit Ideas”)	WW	Mar ’70 p123
Simple Audio Preamp	WW	May ’70 p207
Class Distinction in Audio Amplifiers	WW	Jun ‘70 p278
15-20W Class AB Audio Amplifier	WW	Jul ‘70 p321
Simple Class A Amplifier and Modular Preamp – Postscript	WW	Dec ‘70 p607
How Important is the Audio Amplifier Part 1 – Loudspeakers and Power Amplifiers	TG	Jan ‘71 p1236
How Important is the Audio Amplifier Part 2 – Pre-amplifiers and Tonal Quality	TG	Feb ‘71 p1380
How Important is the Audio Amplifier Part 3 – Filters and Power Supplies	TG	Mar ‘71 p1538
The Liniac	WW	Sep ‘71 p437
Sound Pressure-Level Meter	WW	Apr ’72 p167
Simple Electronic Multimeter	WW	Jun ’72 p279
Portable Distortion Monitor	WW	Jul ‘72 p306
A Direct-Coupled High Quality Stereo Amplifier Part 1	HFN&RR	Nov ’72 p2120
A Direct-Coupled High Quality Stereo Amplifier Part 2	HFN&RR	Dec ’72 p2280
A Direct-Coupled High Quality Stereo Amplifier Part 3	HFN&RR	Jan ‘73 p60
A Direct-Coupled High Quality Stereo Amplifier Part 4	HFN&RR	Feb ’73 p290
A Direct-Coupled High Quality Stereo Amplifier – Afterthoughts and Additions	HFN&RR	May ’73 p939
Linear Voltage Controlled Oscillator	WW	Nov ‘73 p567
High-Quality DC Coupled Amplifier – A Retrospective Look: Practical Construction & Kit Considerations	HFN&RR	Apr ’74 p75
Twin Voltage Stabilised Power Supply	WW	Jan ’75 p43
Equipping an Amateur Hi-Fi Workshop Part 1 – Introduction	HFN&RR	Jan ’75 p103
Equipping an Amateur Hi-Fi Workshop Part 2 – A Low Distortion Sine-Wave and Square Wave Oscillator	HFN&RR	Mar ’75 p63
Equipping an Amateur Hi-Fi Workshop Part 3 – A Wide Range, High Input Impedance Millivoltmeter	HFN&RR	Apr ’75 p64
? Power Amplifier	SS	Apr ’75 p22
Equipping an Amateur Hi-Fi Workshop Part 4 – A Sensitive Spot-Frequency Distortion Meter	HFN&RR	Jun ’75 p51
Amplifier Technology	ETI	Jun ‘75 p16
Equipping an Amateur Hi-Fi Workshop Part 5 – An F.M. Oscillator and ‘Wobbulator’	HFN&RR	Jul ’75 p55
Equipping an Amateur Hi-Fi Workshop Part 6 – A Short-Circuit Protected, Stabilised, Bench Power Supply	HFN&RR	Aug ’75 p42
One-Shot Timer Circuit	WW	Nov ’75 p520
Equipping an Amateur Hi-Fi Workshop – Afterthoughts, Errors and Omissions	HFN&RR	Mar ’76 p67
Low-Noise, Low-Cost Cassette Recorder Part 1	WW	May ’76 p36
The Shape of Amplifiers to Come Part 1	HFN&RR	May ’76 p77
Low-Noise, Low-Cost Cassette Recorder Part 2	WW	Jun ’76 p62
The Shape of Amplifiers to Come Part 2	HFN&RR	Jun ’76 p67
Square-Wave Generator with Single Frequency Adjustment Resistor	WW	Jul ’76 p36
The Shape of Amplifiers to Come Part 3	HFN&RR	Jul ’76 p62
The “H” or “Bootstrap” LF Circuit Filter	EE	Jul ’76 p55
Low-Noise, Low-Cost Cassette Recorder Part 3	WW	Aug ’76 p55
Low Distortion Oscillator Part 1	WW	Sep ’77 p40
Low Distortion Oscillator Part 2	WW	Oct ’77 p69
Low-Noise, Low-Cost Cassette Recorder – Postscript	WW	Feb ’78 p35
High Quality Headphone Amp	HFN&RR	Jan ‘79 p81
A Reference Standard RIAA Preamplifier	HFN&RR	Feb ‘79 p70
Spot-Frequency Distortion Meter	WW	Jul ’79 p62
Linear Voltage-Controlled Oscillator	WW	Sep ‘79 p87
A Simple 30 Watt Integrated Amplifier Part 1	HFN&RR	Jan ‘80 p67
A Simple 30 Watt Integrated Amplifier Part 2	HFN&RR	Feb ‘80 p61
A Simple 30 Watt Integrated Amplifier Part 3	HFN&RR	Mar ‘80 p45
A Simple 30 Watt Integrated Amplifier – Errors	HFN&RR	Jun ‘80 p55
Build a Peak Drive Indicator	HFN&RR	Oct ’80 p63
An Introduction to Power MOSFETs	HFN&RR	Dec ‘80 p83
Wien-Bridge Oscillator with Low Harmonic Distortion	WW	May ‘81 p51
Integrated Circuit Design	WW	Oct ‘81 p43
LM109 Three Terminal Voltage Regulator	WW	Mar ’82 p41
555-Type Integrated Circuits	WW	Apr ’82 p41
80-100 Watt MOSFET Audio Amplifier Part 1	WW	Jun ‘82 p40
80-100 Watt MOSFET Audio Amplifier Part 2	WW	Jul ‘82 p63
80-100 Watt MOSFET Audio Amplifier Part 3	WW	Aug ‘82 p28
Third-Generation Op-amps	WW	Sep ‘82 p80
Distortion On & Off the Record	HFN&RR	Oct ‘82 p59
Modular Preamplifier Part 1	WW	Oct ‘82 p32
Modular Preamplifier Part 2	WW	Nov ‘82 p60
Modular Preamplifier Part 3	WW	Jan ‘83 p46
Modular Preamplifier Part 4	WW	Feb ‘83 p79
Stabilised Hi-Fi PSU	ETI	May ’83 p18
Audio Design Part 1	ETI	Sep ’83 p21
Audio Design Part 2 – IC’s in Audio	ETI	Oct ’83 p28
Strain-gauge Weighing Scale	WW	Oct ’83 p26
Audio Design Part 3 – Distortion and Noise	ETI	Nov ’83 p26
Audio Design – Moving Coil PU Head Amp	ETI	Nov ’83 p31
Audio Design Part 4 – RIAA / Tone Controls	ETI	Dec ’83 p37
Audio Design Part 5 – Power Amplifier Design	ETI	Jan ’84 p42
Audio Design Part 6 – Audio Recording	ETI	Feb ’84 p56
Active Filter Calculations	WW	Feb ’84 p52
Audio Design Part 7 – Imaginary Numbers	ETI	Mar ’84 p58
Audio Design Amplifier Part 1 – Design Criteria and Pre-Amp	ETI	Jun ’84 p24 *
Audio Design Amplifier Part 2 – MOSFET Power Amp	ETI	Jul ’84 p44 *
Audio Design Amplifier Part 3 – PSU and Power Meter	ETI	Aug ’84 p30 *
Audio Design Amplifier Part 4 – Final Description and Corrections	ETI	Sep ’84 p59 *
Symmetry in Audio Amplifier Circuitry	E&WW	Jan ‘85 p31
Distortion Meter Part 1 – Basic Criteria and Design Principals	ETI	Jan ‘ 85 p55
Distortion Meter Part 2 – Circuit Description	ETI	Feb ’85 p37
Distortion Meter Part 3 – Instrument Use	ETI	Mar ’85 p43
The Real Components Part 1 – Resistors and Capacitors	ETI	Mar ’85 p29
The Real Components Part 2	ETI	Apr ’85 p??
The Real Components Part 3	ETI	May ’85 p??
Automatic Enlarger Timer	E&WW	May ’85 p45
The Real Components Part 4 – Transistor Parameters and Design Calculations	ETI	Jun ’85 p25
Designer’s Notebook – Power Amp Design	ETI	Jun ‘85 p42
Low Cost Audio Mixer	ETI	Jun ’85 p38
The Real Components Part 5 - Diodes	ETI	Jul ’85 p18
A.C. Mains Power Controller	E&WW	Jul ’85 p53
The Real Components Part 6	ETI	Aug ‘85 p??
Audio Design Amplifier - Errata	ETI	Oct ’85 p58
Synchrodyne a.m. Receiver Part 1	E&WW	Jan ’86 p51
Synchrodyne a.m. Receiver Part 2	E&WW	Feb ’86 p53
Synchrodyne a.m. Receiver Part 3	E&WW	Mar ’86 p58
PA Amplifier	ETI	May ’86 p??
An Engineer’s Log-Moisture Measurement	E&WW	Jul ’86 p24
Putting the Quality back into A.M. Radio	E&WW	Oct ‘86 p16
Electronic Ignition for Single Cylinder Engines; capacitor discharge unit replaces magneto ignition to give new life to garden machinery $	E&WW	Oct ’86 p65
PLL FM Tuner Part 1 – Low Distortion Stereo Decoder	ETI	Feb ’87 p46
PLL FM Tuner Part 2	ETI	Mar ’87 p34
PLL FM Tuner Part 3 – Construction and Setting Up	ETI	Apr ’87 p33
A Present for Granny (a hearing aid design)	ETI	??? ’89 p??
A/AB MOSFET Power Amplifier	E&WW	Mar ‘89 p261
Dual-Output Twin Rail Power Supply	E&WW	May ‘89 p524
? MOSFET Power Amp	ETI	May ’89 p??
Valve – A High Quality 25-30W Audio Amplifier	ETI	Aug ‘ 89 p21
Solid State Audio Power Part 1	E&WW	Nov ‘89 p1042
Solid State Audio Power Part 2	E&WW	Dec ‘89 p1164
Solid State Audio Power Part 3	E&WW	Jan ‘90 p16
Elements of Radio Part 1	ETI	??? ’90 p??
Elements of Radio Part 2	ETI	Apr ’90 p33
Endstufenschaltungen unter der Lupe Part 1 #	ELRAD	May ’90 p50
Endstufenschaltungen unter der Lupe Part 2 #	ELRAD	Jun ’90 p87
Endstufenschaltungen unter der Lupe Part 3 #	ELRAD	Jul ’90 p90