Detailed entries for one subject from the INDEX TO HOW TO DO IT INFORMATION.
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The entries are in alphabetical order by magazine name and then in chronological sequence.
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Slewing induced distortion (SID) in audio amplifiers. Part 2. (1) Total harmonic distortion tests for SID. (2) Two-tone intermodulation distortion tests for SID.
AUDIO AMATEUR 2/1977 [May 1977] (v.8#2) pg. 22, 37

Report on assembly and use of Heath's IM-5258 Total Harmonic Distortion analyzer and sensitive audio voltmeter kit.
AUDIO AMATEUR 2/1978 [Jun 1978] (v.9#2) pg. 45
Added Info AUDIO AMATEUR 2/1979 [Apr 1979] (v.10#2) pg. 51

Muller nuller. Construct a harmonic distortion analyzer that has a measurement range of 20-to-20,000Hz, a bandwidth at least to 1.5Mhz, a residual of 0.004% or less, etc.
AUDIO AMATEUR 5/1982 [Jan 1983] (v.13#5) pg. 7
Correction AUDIO AMATEUR 1/1983 [Apr 1983] (v.14#1) pg. 54
Correction AUDIO AMATEUR 3/1983 [Sep 1983] (v.14#3) pg. 56

The tape-tweaker's pal. Instrument for aligning a tape recorder has three sections (variable-frequency oscillator, spot-frequency oscillator, and a spot THD analyzer). Also useful for checking frequency response and midband distortion on any piece of audio gear. Part 1.
AUDIO AMATEUR 5/1982 [Jan 1983] (v.13#5) pg. 13

A new harmonic distortion tool. Notch-filter designs suitable for use in total-harmonic-distortion (THD) measurements.
AUDIO AMATEUR 2/1996 [May 1996] (v.27#2) pg. 42

Electronics Workbench (EW) in action. Using the EW computer program to measure harmonic distortion in a power amp design.
AUDIO AMATEUR 3/1996 [Sep 1996] (v.27#3) pg. 30

THD is meaningless. An RF amplifier designer argues that total harmonic distortion (THD) figures are irrelevant, irrational, and completely spurious. Part 1.
AUDIOXPRESS Jan 2001 (v.32#1) pg. 36
Added Info AUDIOXPRESS Aug 2001 (v.32#8) pg. 73

THD is meaningless. Part 2.
AUDIOXPRESS Feb 2001 (v.32#2) pg. 54

A digital upgrade for the Hewlett Packard 339A Distortion Measurement Set. Replace the 30kHz low-pass radio broadcast test filter with a 22 kHz low-pass filter suitable for THD (total harmonic distortion) measurements.
AUDIOXPRESS Mar 2003 (v.34#3) pg. 16

Build a THD (total harmonic distortion) analyzer to test stereo receivers, preamps, and power amps. Will detect THD levels down to 0.005%.
ELECTRONICS EXPERIMENTERS HANDBOOK 1993 pg. 67

Harmonic-distortion meter measures amplifier distortion down to 0.1% with good accuracy. Est. cost: $40.
ELECTRONICS ILLUSTRATED Jul 1970 (v.13#4) pg. 45

Sound of the machine. The hidden harmonics behind THD. Results of extensive testing of vacuum-tube driver circuits sheds new light on the significance of THD (total harmonic distortion).
GLASS AUDIO 4/1997 (v.9#4) pg. 1
Added Info GLASS AUDIO 1/1999 (v.11#1) pg. 53

THD (total harmonic distortion) analyzer circuit is used in conjunction with a true-RMS voltmeter to measure audio-amplifier performance.
POPULAR ELECTRONICS [2] Nov 1994 (v.11#11) pg. 30
Added Info POPULAR ELECTRONICS [2] Jul 1995 (v.12#7) pg. 30

THD (total harmonic distortion) analyzer for testing audio amplifiers up to 600 watts. Will detect THD levels down to 0.005%.
RADIO-ELECTRONICS Dec 1991 (v.62#12) pg. 47
Correction RADIO-ELECTRONICS Apr 1992 (v.63#4) pg. 22

Build a THD (total harmonic distortion) tester adapter which you can use with an AC VTVM or Hi-Z VOM. Est. cost: $11.
RADIO-TV EXPERIMENTER #806 Oct-Nov 1966 (v.21#2) pg. 62

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