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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 select stereo headphones. A look at the major types, what they cost and how to pick the best for your needs.
BETTER HOMES & GARDENS Apr 1974 (v.52#4) pg. 154

How to add a headphone system to a stereo. Also, how to hook into a television antenna to improve radio reception of your stereo set.
BOYS' LIFE Feb 1980 (v.70#2) pg. 12

A guide to shopping for stereo headphones.
BOYS' LIFE May 1980 (v.70#5) pg. 14

Output a high-level audio signal from a tuner/amplifier into your lawn by means of a metal stake. Then you can "listen" to your lawn by inserting a metal stake which is attached to a headphone. Use it to liven up your next lawn party.
CQ. THE RADIO AMATEUR'S JOURNAL Mar 1979 (v.35#3) pg. 105

Headset amplifier powered by 9-volt battery. Use to connect an FM tuner to earphones.
CQ. THE RADIO AMATEUR'S JOURNAL Mar 1979 (v.35#3) pg. 107

How to add a battery powered speaker/amplifier to the Heathkit HW-8 transceiver to eliminate the need for earphones. Est. cost: $12.
CQ. THE RADIO AMATEUR'S JOURNAL May 1981 (v.37#5) pg. 52

An outboard volume control for your receiver. Designed for use with high-impedance headphones. Est. cost: $5.
CQ. THE RADIO AMATEUR'S JOURNAL Jan 1983 (v.39#1) pg. 58

How to connect a combination headset/boom microphone to your TR2500 walkie-talkie to allow hands-free operation.
CQ. THE RADIO AMATEUR'S JOURNAL Jun 1985 (v.41#6) pg. 38

How to use stereo earphones with your amateur receiver. A simple circuit for impediance matching (1,000-ohm to 8-ohm) and converting from stereo to monaural.
CQ. THE RADIO AMATEUR'S JOURNAL Sep 1987 (v.43#9) pg. 52

Headsets. A comprehensive look at the selection and use of headsets for amateur radio operators.
CQ. THE RADIO AMATEUR'S JOURNAL Mar 1989 (v.45#3) pg. 50

Peaking headphones for CB.
ELECTRONICS ILLUSTRATED May 1963 (v.6#3) pg. 65

How to hook up crystal headphones.
ELECTRONICS ILLUSTRATED Jul 1964 (v.7#4) pg. 84

Wireless headphones. Picks up inductive field.
ELECTRONICS ILLUSTRATED Sep 1965 (v.8#5) pg. 55

Device to restore the low-frequency time-delayed sound from the left channel to the right ear and right to left. This eliminates the unnatural, exaggerated stereo effect of stereo headphones.
ELECTRONICS ILLUSTRATED Jan 1971 (v.14#1) pg. 92

Adapting stereo headphones for use by hams. Circuit uses one IC to match impedance and improve voice frequency response.
ELECTRONICS ILLUSTRATED May 1972 (v.15#3) pg. 80

Build noise-canceling headphones which let you mix in a signal from a CD or tape player. This lets you minimize background noise while still listening to music.
ELECTRONICS NOW Sep 1997 (v.68#9) pg. 31

Integrated circuit which delivers 250 mW to an 8-ohm speaker can be used as a headphone driver, low-power audio amplifier, and telephone pickup amplifier.
ELECTRONICS WORLD Feb 1968 (v.79#2) pg. 74

Connecting earphones to an old magnetic speaker radio.
ELEMENTARY ELECTRONICS #763 Winter 1965 pg. 14

Transistorized stereo-headphone amplifier. Est. cost: $6.
ELEMENTARY ELECTRONICS Mar-Apr 1966 (v.2#1) pg. 89

Stereofone, a dual IC amplifier designed specifically with input equalization for a magnetic phono cartridge and output to feed stereo headphones.
ELEMENTARY ELECTRONICS Sep-Oct 1969 (v.9#1) pg. 49

Easy-to-build headphone adaptor lets you use high-impedance phones on a radio, TV, tape recorder, etc., which was originally equipped with the earplug-type earphone of only 8- to 10-ohm impedance.
ELEMENTARY ELECTRONICS Nov-Dec 1975 (v.15#6) pg. 80

Use a telephone induction coil pick-up, attached to your earphones, to record onto cassettes. Useful for recording shortwave broadcasts, amateur radio broadcasts, etc.
ELEMENTARY ELECTRONICS Jan-Feb 1977 (v.17#1) pg. 58

Add a mechanical filter to old-fashioned earphones, the kind with a metal diaphragm. This will improve CW (continuous-wave code) reception.
ELEMENTARY ELECTRONICS Jul-Aug 1977 (v.17#4) pg. 50

Troubleshooting weak spots in headphone wiring.
FAMILY HANDYMAN #302 Oct 1989 (v.39#9) pg. 86

The Rabbit Ear is hooked between your headphones and an amplifier. When room noise above a preset level is detected, the Rabbit Ear cuts into your headphones and lets you listen to whatever it's picking up.
HANDS-ON ELECTRONICS Mar-Apr 1986 (v.3#2) pg. 87

Schematic diagram of a small amplifier that can convert a transistor radio from earphone to loudspeaker operation.
HANDS-ON ELECTRONICS Jan 1987 (v.4#1) pg. 111
Correction HANDS-ON ELECTRONICS Sep 1987 (v.4#9) pg. 4

Headphone repair. It often takes very little effort or expense to put new life into defective stereo headphones.
HANDS-ON ELECTRONICS Mar 1987 (v.4#3) pg. 44

Noise limiter circuit is placed between receiver and earphones.
HANDS-ON ELECTRONICS Sep 1987 (v.4#9) pg. 96

TV audio amplifier picks up the TV's audio output signal and amplifies it enough to drive a set of earphones for private listening. Uses an electret microphone element as the pick-up.
HANDS-ON ELECTRONICS Nov 1988 (v.5#11) pg. 41

Troubleshooting the source of electronic noise in your aviation headphones. What causes various types of noise and where to look for the fault.
LIGHT PLANE MAINTENANCE Nov 1992 (v.14#11) pg. 10

How to connect two earphones to a transistor radio with only one jack.
MODERN ELECTRONICS [1] Mar 1978 (v.1#2) pg. 6

Headphone amplifier circuit. Uses the common LM386 integrated circuit, a 9-volt battery and a few other components. Est. cost: under $11.
MODERN ELECTRONICS [1] Jun 1978 (v.1#4) pg. 58

How to wire up 16 earphone jacks to a single 45 watt amplifier.
MODERN ELECTRONICS [1] Oct 1978 (v.1#8) pg. 7

Stereo and mono together. Modifying a mono headphone jack to properly accept either stereo or mono phones.
MODERN ELECTRONICS [2] Jan 1985 (v.1#4) pg. 46

Inexpensive wireless headphones. A simple induction system lets you listen to audio sound in privacy. Does not transmit stereo, only good-quality mono. Est. cost: $25.
MODERN ELECTRONICS [2] Feb 1987 (v.4#2) pg. 69
Correction MODERN ELECTRONICS [2] Jun 1987 (v.4#6) pg. 5

Airline headphone substitutes. This device takes the discomfort out of listening to music or in-flight movies by substituting electrically operated headphones for the air-driven ones you rent.
MODERN ELECTRONICS [2] Nov 1987 (v.4#11) pg. 62

Make stereophones from surplus headphones.
POPULAR ELECTRONICS [1] May 1964 (v.20#5) pg. 100

Transistor circuit for impedance-matcher allows low impedance headphones to be attached to high impedance outputs.
POPULAR ELECTRONICS [1] Jan 1965 (v.22#1) pg. 74

Stereo headphone control unit allows remote selection of speaker or headphone operation and remote adjustment of headphone volume level.
POPULAR ELECTRONICS [1] Apr 1966 (v.24#4) pg. 71

Four-way adapter lets up to four earphones be attached to a small transistor radio.
POPULAR ELECTRONICS [1] May 1967 (v.26#5) pg. 31

Simple stereo headphones made from two plastic funnels, two small speakers, and a plastic headband. Est. cost: $1.
POPULAR ELECTRONICS [1] Jul 1968 (v.29#1) pg. 34

Circuit for an integrated circuit for a headphone amplifier. Offers good match to a 600-ohm headset.
POPULAR ELECTRONICS [1] Nov 1968 (v.29#5) pg. 98

Proper methods for connecting headphones to hi-fi speaker output terminals.
POPULAR ELECTRONICS [1] Jul 1972 (v.2#1) pg. 76

Simple circuit for attaching stereo headphones to any stereo radio without a phone plug.
POPULAR ELECTRONICS [1] Mar 1973 (v.3#3) pg. 114

Noise clipper will prevent loud noises caused by interference from getting to your headphones.
POPULAR ELECTRONICS [1] Sep 1973 (v.4#3) pg. 24

Make a pair of mono or stereo headphones by attaching two of the small earplug-type earphones onto each end of a steel band which goes over your head.
POPULAR ELECTRONICS [1] Nov 1973 (v.4#5) pg. 38

Filter removes the 60-Hz hum you get when using hi-fi headphones with a shortwave receiver.
POPULAR ELECTRONICS [1] May 1975 (v.7#5) pg. 88

Circuit to introduce a certain amount of "crosstalk" to make headphones sound stereophonic rather than binaural.
POPULAR ELECTRONICS [1] Nov 1975 (v.8#5) pg. 105

Clipper circuit filters out bursts of noise caused by atmospheric and power switch noise interference. The clipping threshold is adjustable.
POPULAR ELECTRONICS [1] Jan 1977 (v.11#1) pg. 34

Cord buster. Eliminate the need for headphone umbilical cords that keep you tethered to your stereo system by constructing this short-range FM transmitter.
POPULAR ELECTRONICS [2] Apr 1989 (v.6#4) pg. 44

Wireless headphones use an infrared transmitter/receiver combination.
POPULAR ELECTRONICS [2] Dec 1993 (v.10#12) pg. 31

Tip for ham radio operators on avoiding hearing loss when operating with headphones.
POPULAR ELECTRONICS [2] Nov 1997 (v.14#11) pg. 71

Earphone adapter for car radio.
POPULAR MECHANICS Feb 1963 (v.119#2) pg. 141

Wireless pickup brings TV or phono sound to your ears through an individual receiver. Est. cost: $3 per receiver unit.
POPULAR MECHANICS Jan 1966 (v.125#1) pg. 196

Easily-made multiple headphone outlet box accommodates up to four headsets plugged in simultaneously.
POPULAR MECHANICS Jan 1972 (v.137#1) pg. 98

Tip: How to attach stereo headphones to an inexpensive pocket radio.
POPULAR MECHANICS Apr 1981 (v.155#4) pg. 38

Illustration shows the difference between 2- and 3-conductor phone plugs.
POPULAR MECHANICS Aug 1982 (v.158#2) pg. 20

A super-simple headphone stereo amplifier. Works only with moderate-impedance (over 50 ohms) stereo headphones. Amplifies a phonograph, FM tuner, or tape deck. Battery powered.
POPULAR SCIENCE May 1967 (v.190#5) pg. 130

A look at quadraphonic headphones available on the market with comparison chart of ten brands. Special evaluation of the Telephonics Fixler-effect phones.
POPULAR SCIENCE Aug 1974 (v.205#2) pg. 90

Buyer's guide to stereo headphones.
POPULAR SCIENCE Nov 1979 (v.215#5) pg. 110

Circuit for a low-distortion audio limiter which attenuates sudden changes in volume. Use with any receiver. Ideal for use with earphones.
RADIO-ELECTRONICS Jul 1983 (v.54#7) pg. 74

Circuit for adding a headphone jack to a radio or TV.
RADIO-ELECTRONICS May 1985 (v.56#5) pg. 101
Correction RADIO-ELECTRONICS Nov 1985 (v.56#11) pg. 20

Tips on troubleshooting headphones and speakers in antique radios.
RADIO-ELECTRONICS Sep 1986 (v.57#9) pg. 88

How to wire up a low-impedance headphone jack that will automatically silence a speaker when the phones are plugged in.
RADIO-ELECTRONICS Dec 1987 (v.58#12) pg. 15

Tips on adding an earphone jack to a television set.
RADIO-ELECTRONICS Apr 1989 (v.60#4) pg. 8
Correction RADIO-ELECTRONICS Jun 1989 (v.60#6) pg. 14

Build a set of stereo headphones. Est cost: $4.
RADIO-TV EXPERIMENTER #780 Apr-May 1966 (v.20#2) pg. 79

Personal hi-fi. Miniature stereo headphone amplifier. Powered by a single D battery. Est. cost: $3.
RADIO-TV EXPERIMENTER Feb-Mar 1967 (v.22#1) pg. 54