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AUDIO EQUALIZER entries in Index to How To Do It Information
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Detailed entries for one subject from the INDEX TO HOW TO DO IT INFORMATION.
Click on a see also (sa) or tracing (xx) to view detailed entries about a related subject.
The entries are in alphabetical order by magazine name and then in chronological sequence.
To obtain a copy of any magazine article contact your local public library or the publisher.


Octalizer (octave equalizer). A graphic equalizer that is relatively easy to build.
AUDIO AMATEUR 1/1972 [Oct 1972] (v.3#1) pg. 3, 8
Correction AUDIO AMATEUR 2/1972 [Jan 1973] (v.3#2) pg. 28
Added Info AUDIO AMATEUR 2/1972 [Jan 1973] (v.3#2) pg. 28
Added Info AUDIO AMATEUR 3/1972 [Mar 1973] (v.3#3) pg. 35
Added Info AUDIO AMATEUR 1/1974 [Oct 1974] (v.5#1) pg. 32
Added Info AUDIO AMATEUR 3/1974 [Feb 1975] (v.5#3) pg. 34
Correction AUDIO AMATEUR 4/1975 [Mar 1976] (v.6#4) pg. 40

A variable frequency equalizer. A three-section peaking equalizer with a slope of 12dB per octave at any boost or cut setting.
AUDIO AMATEUR 2/1975 [Nov 1975] (v.6#2) pg. 3
Correction AUDIO AMATEUR 4/1975 [Mar 1976] (v.6#4) pg. 40

Kit report on the Dynaco SE-10 octave equalizer.
AUDIO AMATEUR 4/1978 [Nov 1978] (v.9#4) pg. 32

De-pop your Soundcraftsman 20-12 audio equalizer. How to eliminate the loud "pop" emitted when the equalizer is switched into an operating audio system.
AUDIO AMATEUR 1/1979 [Feb 1979] (v.10#1) pg. 36

Kit report on the Deltagraph equalizer (EQ 10 SP-B).
AUDIO AMATEUR 1/1981 [Feb 1981] (v.12#1) pg. 42

Tips on substituting Natl. Semiconductor LF353 and LF354 wide band dual J-FET input operational amplifiers for the 5558 dual op amps when constructing the equalizer which appeared in Popular Electronics (May 1974).
AUDIO AMATEUR 2/1981 [Apr 1981] (v.12#2) pg. 50

Test report on the Symmetric Sound Systems (SSS) model EQ-2 12-band, stereo graphic equalizer kit.
AUDIO AMATEUR 3/1981 [Jun 1981] (v.12#3) pg. 40

Cardboard template for a graphic equalizer lets you quickly reset the slide switches to specific settings for various combinations of equipment, room size, etc.
AUDIO AMATEUR 5/1984 [Oct 1984] (v.15#5) pg. 43

Report on the Phoenix Systems P-94-SR stereo parametric equalizer kit.
AUDIO AMATEUR 2/1986 [May 1986] (v.17#2) pg. 41

Tailored filtering for room equalization. Practical tips on loudspeaker placement and various filter (equalizer) designs to enhance your listening room pleasure.
AUDIO ELECTRONICS 5/1998 [Oct 1998] (v.29#5) pg. 26
Correction AUDIO ELECTRONICS 2/1999 [Mar 1999] (v.30#2) pg. 46

A filter for treble distortion in recordings. Deals with the distortion between 2k and 3kHz. Includes information to expand the design into a complete high-quality room equalizer.
AUDIO ELECTRONICS 6/2000 [Nov 2000] (v.31#6) pg. 6
Correction AUDIOXPRESS May 2001 (v.32#5) pg. 78

Schematic diagram of a vintage Marantz Audio Consolette control preamplifier-equalizer.
AUDIOXPRESS May 2001 (v.32#5) pg. 96

The optimized graphic equalizer. Part 1. New design approach provides sharper frequency control in the all-important audio midband. Est. cost: $160.
COMPUTERS & ELECTRONICS Dec 1982 (v.20#12) pg. 85

The optimized graphic equalizer. Part 2. Build an integral (flatness) analyzer accessory for accurately setting up an audio analyzer. Est. cost: $60.
COMPUTERS & ELECTRONICS Jan 1983 (v.21#1) pg. 56
Correction COMPUTERS & ELECTRONICS Apr 1983 (v.21#4) pg. 6

Ultra-low-distortion graphic equalizer designed for insertion between the preamplifier and power amplifier. It has 10 sections with 12dB boost or cut.
GLASS AUDIO 6/1996 (v.8#6) pg. 40

Playmaster graphic equalizer kit. Some tips on assembling and using this inexpensive equalizer to improve the sound quality of your stereo system. Est. cost: $80.
HANDS-ON ELECTRONICS Nov 1986 (v.3#6) pg. 59

Frequency equalizer. A unity gain amplifier which is inserted in a stereo system between the preamp and the power amplifier. Allows a (+ or -) 12 dB control of five areas of the audio spectrum.
POPULAR ELECTRONICS [1] Oct 1970 (v.33#4) pg. 51

Nine channel stereo equalizer. Est. cost: $100.
POPULAR ELECTRONICS [1] May 1974 (v.5#5) pg. 27

Build the Delta-Graph octave-band equalizer. Features 10 slide potentiometers, one for each musical octave, a boost/cut range of 15dB in each direction and can be built for mono, stereo or quadraphonic use. Est. costs: $56 for mono; $130 for stereo; $20 for power supply.
POPULAR ELECTRONICS [1] Sep 1976 (v.10#3) pg. 53
Correction POPULAR ELECTRONICS [1] Oct 1976 (v.10#4) pg. 8

Build a combination wide-band noise source and unity-gain indicator which allows the user to adjust master gain controls for unity gain within (+or-) 0.5 dB. Est. cost: $10.
POPULAR ELECTRONICS [1] Nov 1978 (v.14#5) pg. 106

The art of equalization. How to adjust the controls of an equalizer to "sweeten" instruments and achieve that special recorded "sound".
POPULAR ELECTRONICS [1] Aug 1979 (v.16#2) pg. 49

Tailor the sound of your audio system with this Stereo Parametric Equalizer. Est. cost: $99.
POPULAR ELECTRONICS [1] Sep 1979 (v.16#3) pg. 47

Build this precision equalizer/preamp to pinpoint the truly correct impedance match between a phono cartridge and receiver preamp for the best high-frequency response. Est. cost: $50.
POPULAR ELECTRONICS [1] May 1982 (v.20#5) pg. 70

How equalizers work and some of the commercial units available are reviewed.
POPULAR MECHANICS Nov 1976 (v.146#5) pg. 188

Build a pink noise generator to test your hi-fi response. Use this unit to establish room equalization of your system. Est. cost: $10.
RADIO-ELECTRONICS Jan 1978 (v.49#1) pg. 43
Added Info RADIO-ELECTRONICS Sep 1978 (v.49#9) pg. 16

Build a graphic equalizer for your stereo system. Part 1. This unit has 12 bands-per-channel and is only 9" wide. It used no inductors and only a minumum of different values of capacitors, thus making it less sensitive to magnetic fields and saturation problems. Est. cost: $90.
RADIO-ELECTRONICS May 1978 (v.49#5) pg. 37

Build a graphic equalizer for your stereo system. Part 2.
RADIO-ELECTRONICS Jun 1978 (v.49#6) pg. 82

Audio testing with pink noise. How to use a pink-noise generator to simplify making audio equalizer adjustments.
RADIO-ELECTRONICS Sep 1978 (v.49#9) pg. 44

Phono preamp and graphic equalizer circuit is built around a 5532 dual low-noise high-performance op-amp.
RADIO-ELECTRONICS Jul 1982 (v.53#7) pg. 92

Signal processors. Part 2. Equalizers.
RADIO-ELECTRONICS Feb 1987 (v.58#2) pg. 85

Circuit for a simple 5-band graphic equalizer incorporates only one IC.
RADIO-ELECTRONICS Apr 1990 (v.61#4) pg. 60

Report on the Audio Control "Richter Scale", a combination of a two-way electronic crossover with a low-frequency equalizer and test system. Includes tips on installation and setup.
SPEAKER BUILDER 2/1987 [May 1987] (v.8#2) pg. 50
Added Info SPEAKER BUILDER 3/1987 [Aug 1987] (v.8#3) pg. 61

Tips on using equalizers and locating speakers to get realistic sound over the whole listening room.
SPEAKER BUILDER 5/1988 [Sep 1988] (v.9#5) pg. 74

Active shelving room equalization. Designing a fixed (non-adjustable) two-channel active equalizer (shelving-ladder filter) to replace an adjustable third-wave equalizer in a home-theater installation.
SPEAKER BUILDER 5/1997 [Aug 1997] (v.18#5) pg. 28
Added Info SPEAKER BUILDER 7/1997 [Nov 1997] (v.18#7) pg. 52