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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.

xx   TIMER

Program allows your KIM-1 microcomputer to act as a metronome via the speaker in the cassette recorder.
BYTE Aug 1979 (v.4#8) pg. 213

Rediscovering the transistor. Includes circuits for a mositure detector, metronome, electrometer, and power timers.
COMPUTERS & ELECTRONICS Jan 1984 (v.22#1) pg. 96

Electronic metronome is powered by two 9-volt batteries. Est. cost: $10.
COMPUTERS & PROGRAMMING Jul-Aug 1981 (v.21#4) pg. 68

Timing capacitance for sorting unidentified large capacitors. Test 1 to 10,000 microfarad capacitors with great accuracy. The test circuit may also double as an electronic metronome. Est. cost: $20.

Electronic modular metronome counts 20 to 200 beats per minute. Est. cost: $6.
ELECTRONICS ILLUSTRATED Jan 1965 (v.8#1) pg. 64

Electronic syncopated metronome accentuates the first beat of the cycle. Adjustable for different tempos.
ELECTRONICS ILLUSTRATED Mar 1966 (v.9#2) pg. 75

Electronic metronome has range of 35 to 220 beats per minute.
ELECTRONICS ILLUSTRATED Jan 1970 (v.13#1) pg. 66

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

Convert a code practice oscillator into an electric metronome. Est. cost: $5.
ELEMENTARY ELECTRONICS Jul-Aug 1969 (v.8#3) pg. 61

Integrated circuit metronome powered by a 9-volt transistor radio battery. Basic range is 40 to 210 beats per minute, but it can be altered.
ELEMENTARY ELECTRONICS May-Jun 1974 (v.14#3) pg. 61

Electronic metronome provides steady beats like an ordinary metronome and also keeps track of the downbeat in each measure with either a louder or softer beat. Tempo range is 30 to 280 beats per minute. Powered by a 9-volt battery.
ELEMENTARY ELECTRONICS Jan-Feb 1978 (v.18#1) pg. 35

Circuit for a "silent" electronic metronome which is heard only in the earphones of the person playing an electronic keyboard.
HANDS-ON ELECTRONICS Nov 1986 (v.3#6) pg. 26

Electronic metronome circuit, using a 555 oscillator/timer, provides 10- to 40-beats per minute.
HANDS-ON ELECTRONICS Dec 1988 (v.5#12) pg. 27

Electronic metronome uses module plus battery power to count from 30 to 180 cpm. Est. cost: $5.
MECHANIX ILLUSTRATED #458 Jul 1966 (v.62) pg. 94

Circuit for an electronic metronome powered by a nine-volt battery. Both tone and pulse rate can be varied.
MODERN ELECTRONICS [1] Mar 1978 (v.1#2) pg. 7

How to build an audible dodging timer. A simple add-on converts any electronic timer to generate an audible "tick" every second.
PHOTOGRAPHIC Jul 1980 (v.9#3) pg. 79

Build a darkroom metronome. This electronic device beeps at one-second intervals. Est. cost: $13.
PHOTOGRAPHIC May 1987 (v.16#1) pg. 82

Variable tempo, pocket-size electronic metronome.
POPULAR ELECTRONICS [1] Jul 1964 (v.21#1) pg. 44

All-electronic metronome yields distinctive audible signaling.
POPULAR ELECTRONICS [1] Nov 1964 (v.21#5) pg. 57

Darkroom metronome uses flashing light to aid in counting seconds.
POPULAR ELECTRONICS [1] Feb 1965 (v.22#2) pg. 84

Tonal darkroom timer or metronome.
POPULAR ELECTRONICS [1] Nov 1965 (v.23#5) pg. 95

Two-transistor audio-visual metronome sounds a tone and flashes a lamp. Adjustable from "adagio" to "allegro".
POPULAR ELECTRONICS [1] May 1968 (v.28#5) pg. 76

Electronic metronome with accented beat. Beats at from 50 to 160 beats per minute. You may accent every beat, every other beat, etc., up to every tenth beat.
POPULAR ELECTRONICS [1] Nov 1968 (v.29#5) pg. 59

Convert an AM radio to an electronic metronome.
POPULAR ELECTRONICS [1] Jan 1969 (v.30#1) pg. 67

Basic blocking oscillator circuit can serve as (1) code practice oscillator, (2) continuity tester, (3) metronome, (4) audio test signal source, (5) alarm signal and (6) basic electronic organ.
POPULAR ELECTRONICS [1] Jan 1970 (v.32#1) pg. 99

One-second metronome timer produces an audible "click" and a flash of light every second. Useful for photo darkroom work.
POPULAR ELECTRONICS [1] Feb 1970 (v.32#2) pg. 58

Circuit where switching arrangement allows wide-range relaxation oscillator to operate as (1) electronic organ, (2) metronome, (3) thermometer, (4) code practice oscillator, or (5) siren.
POPULAR ELECTRONICS [1] Jun 1970 (v.32#6) pg. 80

Circuit for use in an audible timer or electronic metronome.
POPULAR ELECTRONICS [1] Sep 1971 (v.35#3) pg. 89

Circuit for a simple electronic metronome that can beat from once every 4 seconds to 4 times a second.
POPULAR ELECTRONICS [1] Jun 1973 (v.3#6) pg. 94

Shirt pocket metronome provides audible count of 40 to 220 beats per minute. Est. cost: $5.
POPULAR ELECTRONICS [1] Apr 1974 (v.5#4) pg. 69

Metronome circuit has a nearly linear tempo control and loudspeaker output. Battery powered, it produces 30- to 220-beats per minute.
POPULAR ELECTRONICS [1] Feb 1976 (v.9#2) pg. 93

Build the ultimate metronome. Provides accented beats to make tuning and syncopation easier. You can accent from 1-in-1 to 1-in-7 (or 1-in-15) beats at the flip of a switch. Est. cost: $8.
POPULAR ELECTRONICS [1] Jul 1976 (v.10#1) pg. 57
Correction POPULAR ELECTRONICS [1] Dec 1976 (v.10#6) pg. 8

An LED pendulum metronome. Adjusts from 40 to 210 beats per minute. Battery powered. Est. cost: $15.
POPULAR ELECTRONICS [1] Dec 1981 (v.19#12) pg. 79

Novel metronome circuit provides frequency ranges from 57 to 204 beats per minute.
POPULAR ELECTRONICS [2] Jun 1989 (v.6#6) pg. 26

Simple metronome circuit, built around a 555 oscillator timer, offers a range of speeds from largo to prestissimo.
POPULAR ELECTRONICS [2] Jul 1989 (v.6#7) pg. 26

Exercise pacer circuit provides evenly spaced "clicks" for keeping pace while using an exercise machine. Also suitable for use as a metronome or audible darkroom timer.
POPULAR ELECTRONICS [2] Sep 1990 (v.7#9) pg. 22

Pocket Metronome fits inside an audio-cassette case.
POPULAR ELECTRONICS [2] Oct 1999 (v.16#10) pg. 73
Added Info POPULAR ELECTRONICS [2] Dec 1999 (v.16#12) pg. 4

Variable timer produces an audible click. Adjustable from 4 clicks per second to 1 click every 2 seconds. Use as a darkroom timer or metronome.
POPULAR SCIENCE Mar 1967 (v.190#3) pg. 166

Circuit for an electronic metronome which emphasizes the downbeat.
RADIO-ELECTRONICS Dec 1985 (v.56#12) pg. 38

Metered metronome not only provides a steady beat like an ordinary metronome, but also keeps track of the downbeat in each measure. This downbeat can be either louder or softer. Powered by a 9-volt battery. Tempo of 30 to 280 beats per minute.
SCIENCE & MECHANICS Summer 1978 pg. 47