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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.


How to electronically tune pianos and other musical instruments. Use this circuit, an oscilloscope, and a digital frequency counter to tune with an accuracy of 0.01 Hz.

Perfect Pitch, a musician's friend. Microprocessor-based instrument tuner, headphone amplifier, and metronome in one unit. Est. cost: $59 (kit).
ELECTRONICS NOW Jun 1993 (v.64#6) pg. 47

Electronic strobotuner. Design and operation of an accurate digital music instrument tuner. An electronic "tuning fork" that spans 1 octave ending in concert A.
ELECTRONICS WORLD Mar 1970 (v.83#3) pg. 74

Accutune. An electronic tuner for guitars. Battery powered unit delivers the notes E,A,D,G,B,E. Est. cost: $40.
ELEMENTARY ELECTRONICS Jan-Feb 1981 (v.21#1) pg. 26

Build a musical pitch reference. An electronic device which produces twelve of the middle notes of the equally tempered musical scale. Use for tuning electric organs. Est. cost: $30-$45.
POPULAR ELECTRONICS [1] Sep 1968 (v.29#3) pg. 41
Added Info POPULAR ELECTRONICS [1] Jun 1969 (v.30#6) pg. 70

Build a crystal-controlled musical instrument tuner. An accurate source of 440 Hz, A above middle C.
POPULAR ELECTRONICS [1] Dec 1972 (v.2#6) pg. 55

Electronic music pitch standards. Including construction of a memory to add to the voltage controlled oscillator circuit described in the October 1973 issue (pg 37).
POPULAR ELECTRONICS [1] Jan 1974 (v.5#1) pg. 39

How to electronically tune pianos and other instruments to an accuracy of 0.01 Hz. This precision audio-frequency generator works in conjunction with an oscilloscope and digital frequency counter.
POPULAR ELECTRONICS [2] Feb 1992 (v.9#2) pg. 29

Audio circuits for the musician. (1) Reverberation made simple. Piezo reverb unit incorporates a large metal coil spring from a child's toy microphone. (2) Swiss-army knife circuit can be used to directly tune an instrument by ear, to listen for a beat frequency, or to check the accuracy of a tuning fork. (3) One-chip equalizer circuit that furnishes bass, midrange, and treble control to an audio input. (4) Electronic bongo circuit that produces the sound of practically any percussion instrument.
POPULAR ELECTRONICS [2] Nov 1997 (v.14#11) pg. 58

Build this guitar and bass tuner. An electronic pitch-pipe lets you tune your guitar or bass without disturbing your audience or other performers.
RADIO-ELECTRONICS Nov 1982 (v.53#11) pg. 79

An electronic amplifier for a mechanical tuning fork. The heart of the unit is a conventional tuning fork with electronic circuitry arranged so that the tone output is continuous and at sufficient volume for most group tuning applications.
SCIENCE & ELECTRONICS [1] Oct-Nov 1969 (v.27#2) pg. 79

Accutune: an electronic tuner for your electric guitar. Tune each string to within +/-1 HZ. Est. cost: $40.
SCIENCE & MECHANICS Fall 1981 pg. 87

A copy of a Georgian pitch pipe is made entirely of wood. A square wooden slide is moved in or out to change the pitch of the note being blown. The pipe (or whistle) measures about 270mm long and 38mm square.
WOODWORKER #1022 Jan 1979 (v.83) pg. 25