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PHONOGRAPH TONEARM entries in Index to How To Do It Information
Norman Lathrop Enterprises  
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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.

PHONOGRAPH TONEARM
sa   PHONOGRAPH CARTRIDGE & STYLUS
x   PICKUP ARM (PHONOGRAPH)
x   TONEARM (PHONOGRAPH)
xx   PHONOGRAPH

Cable capacitance of various pickup arms are listed.
AUDIO AMATEUR 4/1970 [Fall 1970] (v.1#4) pg. 21

Modify the auto shut off switch on a RABCO ST-4 turntable so it will switch the unit's motor off and prevent possible arm drift.
AUDIO AMATEUR 4/1972 [Jul 1973] (v.3#4) pg. 18
Correction AUDIO AMATEUR 1/1974 [Oct 1974] (v.5#1) pg. 34

A do-it-yourself tonearm features a balsa wood shaft, magnetic anti-skating device, and ball bearing pivot.
AUDIO AMATEUR 2/1973 [Apr 1974] (v.4#2) pg. 11
Added Info AUDIO AMATEUR 3/1974 [Feb 1975] (v.5#3) pg. 20
Added Info AUDIO AMATEUR 4/1974 [Apr 1975] (v.5#4) pg. 41
Added Info AUDIO AMATEUR 1/1975 [Jun 1975] (v.6#1) pg. 28

Tip on cleaning the Rabco tonearm contacts to stop it from raising prematurely.
AUDIO AMATEUR 4/1973 [Aug 1974] (v.4#4) pg. 18

Tip on preventing a light-weight tonearm from swinging to the wrong side of the record, thus damaging the stylus.
AUDIO AMATEUR 1/1974 [Oct 1974] (v.5#1) pg. 22

Modifying the SME 3009 phono cartridge headshell to reduce its mass from 5.5 grams down to 3.5 grams.
AUDIO AMATEUR 4/1974 [Apr 1975] (v.5#4) pg. 12
Added Info AUDIO AMATEUR 1/1975 [Jun 1975] (v.6#1) pg. 45

The praying mantis tonearm. A split-arm design that is almost 20" long. Made from balsa wood, wire, thread, etc.
AUDIO AMATEUR 2/1976 [Jul 1976] (v.7#2) pg. 5

Simple method of measuring low frequency resonance occurring between the cartridge compliance and the effective mass of the tonearm and cartridge combination.
AUDIO AMATEUR 2/1976 [Jul 1976] (v.7#2) pg. 30

Modifying the Rabco SL8E tonearm.
AUDIO AMATEUR 3/1976 [Oct 1976] (v.7#3) pg. 10
Added Info AUDIO AMATEUR 2/1977 [May 1977] (v.8#2) pg. 73
Added Info AUDIO AMATEUR 1/1978 [Mar 1978] (v.9#1) pg. 67

Modifying the AR (Audio Research) turntable for other tonearms. Shows installation of the Decca arm on the AR turntable with the Lyre lift.
AUDIO AMATEUR 2/1977 [May 1977] (v.8#2) pg. 10
Added Info AUDIO AMATEUR 2/1978 [Jun 1978] (v.9#2) pg. 36 (Grace G-707 arm)
Added Info AUDIO AMATEUR 4/1978 [Nov 1978] (v.9#4) pg. 55

Table of optimum offset and overhang calculations for tonearms from 8" to 20" long (in increments of 0.25").
AUDIO AMATEUR 3/1977 [Aug 1977] (v.8#3) pg. 42

Tip on lightening the headshell weight of a Keith Monks KMAL M9BA Mk.2 tonearm.
AUDIO AMATEUR 4/1977 [Dec 1977] (v.8#4) pg. 47

Modifying the Formula-4 tonearm to reduce headshell and arm resonances.
AUDIO AMATEUR 2/1978 [Jun 1978] (v.9#2) pg. 15

Component interfaces. Part 2. Cartridge interface with tonearm and tonearm interface with turntable.
AUDIO AMATEUR 2/1978 [Jun 1978] (v.9#2) pg. 28
Added Info AUDIO AMATEUR 4/1978 [Nov 1978] (v.9#4) pg. 56

Component interfaces. Part 3. Setting up universal pickup arms
AUDIO AMATEUR 3/1978 [Sep 1978] (v.9#3) pg. 42

Technique for leveling the headshell of a tonearm using a small spirit level.
AUDIO AMATEUR 4/1979 [Oct 1979] (v.10#4) pg. 41

Phonograph arm geometry. A simple graphical layout method to build an arm with low-tracking-error.
AUDIO AMATEUR 1/1980 [Jan 1980] (v.11#1) pg. 40

Technique for measuring capacitance of tonearm output cables (using 60Hz test signals) without getting false readings.
AUDIO AMATEUR 3/1981 [Jun 1981] (v.12#3) pg. 25

Tips on modifications to reduce tonearm or headshell resonances that occur in the audio band.
AUDIO AMATEUR 1/1982 [Jan 1982] (v.13#1) pg. 54

Improving Rabco's ST-4 tonearm.
AUDIO AMATEUR 2/1982 [May 1982] (v.13#2) pg. 16
Correction AUDIO AMATEUR 3/1982 [Aug 1982] (v.13#3) pg. 48

A tangential tracking tonearm.
AUDIO AMATEUR 4/1982 [Oct 1982] (v.13#4) pg. 7
Correction AUDIO AMATEUR 5/1982 [Jan 1983] (v.13#5) pg. 53
Added Info AUDIO AMATEUR 5/1982 [Jan 1983] (v.13#5) pg. 53, 56
Added Info AUDIO AMATEUR 1/1983 [Apr 1983] (v.14#1) pg. 55

Modifying the original AR (Audio Research) tonearm.
AUDIO AMATEUR 4/1989 [Oct 1989] (v.20#4) pg. 48

Modifying the TP-16 Mark III tonearm found on some Thorens turntable systems to improve the sound quality and structural rigidity.
AUDIO AMATEUR 1/1991 [Feb 1991] (v.22#1) pg. 50

On the mechanics of tonearms. Part 1. General principles and static balance.
AUDIO ELECTRONICS 3/2000 [May 2000] (v.31#3) pg. 18

On the mechanics of tonearms. Part 2. Effective mass.
AUDIO ELECTRONICS 4/2000 [Jul 2000] (v.31#4) pg. 24

Arms and turntables. A review of the geometry and physics of trying to track a pickup arm across a rotating phonograph record with the least number of problems.
HANDS-ON ELECTRONICS May 1987 (v.4#5) pg. 62

Turntable design. Part 1. Better pick-up arm performance. Details on the Thorens approach to pickup arm (tone arm) design.
RADIO-ELECTRONICS Jan 1980 (v.51#1) pg. 63