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ELECTRIC POLARITY & GROUND TESTING 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.


Four household circuit testers and what each will and won't do.
CANADIAN WORKSHOP Mar 1986 (v.9#6) pg. 18

Polarity-sensitive continuity tester and voltage sensor. Est. cost: $3.
CQ. THE RADIO AMATEUR'S JOURNAL Apr 1981 (v.37#4) pg. 86

AC outlet tester uses half-wave rectified 120 volts AC to power a multivibrator circuit that produces aural and visual indication of power. Est. cost: $6 (kit).

Voltage tester glows red when connected to 5- to 400-volts, either AC or DC. Also shows polarity of DC voltage.
ELECTRONICS ILLUSTRATED Nov 1970 (v.13#6) pg. 87

Outlet tester checks three-prong AC outlets to determine if they are wired correctly.
ELEMENTARY ELECTRONICS Sep-Oct 1976 (v.16#5) pg. 65
Correction ELEMENTARY ELECTRONICS Mar-Apr 1977 (v.17#2) pg. 27

Using electrical testers. Tips on using a circuit analyzer, continuity tester, circuit tester, and multimeter.
FAMILY HANDYMAN #305 Feb 1990 (v.40#2) pg. 8

How to find an open ground in an electrical circuit, trace and correct the problem.
FAMILY HANDYMAN #381 Sep 1997 (v.47#8) pg. 64

Tip: Modify a standard outlet-tester to check for a grounded outlet cover plate on older, two-wire electric circuits.
HANDS-ON ELECTRONICS Spring 1985 (v.2#4) pg. 58

Chemical polarity experiment. With some phenolphthalein, alcohol, salt, and odds and ends you can build a simple polarity meter and learn something about electrochemistry.
HANDS-ON ELECTRONICS Mar 1988 (v.5#3) pg. 41
Added Info HANDS-ON ELECTRONICS Jun 1988 (v.5#6) pg. 5

Electrical testing. Equipment and techniques for locating short circuits, open circuits, and changes in electrical value.
HOMEOWNER Jul-Aug 1983 (v.8#4) pg. 20

Outlet tester indicates if a three-prong outlet has been wired up correctly. Also includes plans for a testing unit to determine that the outlet tester is operating properly.
INDUSTRIAL EDUCATION Dec 1978 (v.67#9) pg. 38

Ground-checker determines of the third wire (ground wire) in your home electrical system is really at ground potential.
MECHANIX ILLUSTRATED #496 Sep 1969 (v.65) pg. 120

Ground tester tells you by means of a light if your home electrical outlets are wired up properly.
POPULAR ELECTRONICS [1] Aug 1969 (v.31#2) pg. 71

Three circuits all use light-emitting diodes. (1) Relaxation oscillator blinker, (2) dual blinker, and (3) polarity reversal alarm.
POPULAR ELECTRONICS [1] Oct 1970 (v.33#4) pg. 101

DC polarity indicator, using two light-emitting diodes, also reveals presence of AC voltages and provides a rough idea of both AC and DC voltage levels. Works anywhere between 1.5- and 150-volts.
POPULAR ELECTRONICS [1] Apr 1974 (v.5#4) pg. 71

Simple polarity probe is great for checking IC's, automobile wiring, etc.
POPULAR ELECTRONICS [2] Nov 1989 (v.6#11) pg. 25

LED indicator circuits for all occasions. (1) AC pilot light. (2) DC pilot light. (3) Polarity indicator. (4) 5-volt voltage-level indicator. (5) Oscillator-driven flasher. (6) Decoder converts audio CW code into visual dots and dashes.
POPULAR ELECTRONICS [2] Oct 1991 (v.8#10) pg. 82

Dual-function 12-volt DC and continuity tester circuit. Either determines the presence and polarity of a 12-volt DC source or functions as a continuity tester.
POPULAR ELECTRONICS [2] Aug 1995 (v.12#8) pg. 32

Simple diode circuits. (1) Bridge rectifier. (2) Sound-level (audio signal) limiter circuit never exceeds 1.5-volts peak-to-peak. (3) DC polarity or AC indicator circuit. (4) Kick-back voltage limiter for inductive loads. (5) Steering circuit controls relays based on voltage polarity. (6) Simple temperature sensor. (7) Circuit for selecting matching diodes.
POPULAR ELECTRONICS [2] May 1996 (v.13#5) pg. 64

Four-diode bridge circuit is used to direct the proper polarity of a DC battery or power supply to a circuit.
POPULAR ELECTRONICS [2] May 1997 (v.14#5) pg. 63

A collection of troubleshooting circuits. (1) Voltage testers. (2) Polarity indicator. (3) Continuity tester. (4) Transformer tester. (5) Meter resistance tester. (6) Intermittently-open circuit tester.
POPULAR ELECTRONICS [2] Aug 1997 (v.14#8) pg. 67

Outlet ground tester checks ground connections in house wiring.
POPULAR MECHANICS Jul 1965 (v.124#1) pg. 148

Auto battery polarity tester. Est. cost: $2.
POPULAR MECHANICS Nov 1966 (v.126#5) pg. 166

Three-wire socket checker. This device checks 3-wire outlets for presence of voltage, for correct polarity, and for an effective ground connection.
POPULAR MECHANICS Mar 1967 (v.127#3) pg. 188

Electric outlet tester tells you if three-wire outlets have been wired up correctly. A built-in meter also displays the voltage.
POPULAR MECHANICS Jun 1976 (v.145#6) pg. 42

Combination continuity tester and polarity indicator fits into a pill vial. Suitable for 6- and 12-volt automobile electrical systems.
POPULAR MECHANICS Mar 1977 (v.147#3) pg. 184

Make this ground and continuity tester. Use it to check your automobile cables. Est. cost: $2.
POPULAR MECHANICS Nov 1978 (v.150#5) pg. 60

Matchbox-sized gadget (1) determines polarity of 6- or 12-volt system, (2) checks for presence or absence of voltage and (3) tests electrical continuity.
POPULAR SCIENCE Apr 1972 (v.200#4) pg. 154

How to check for wrong-way polarity in your home wiring.
POPULAR SCIENCE Jul 1985 (v.227#1) pg. 85

Build this AC outlet checker to test polarity and grounding.
RADIO-ELECTRONICS Aug 1979 (v.50#8) pg. 53

How to determine the polarity of the voltage at a certain point in a circuit.
RADIO-ELECTRONICS Jan 1983 (v.54#1) pg. 72

Polarity tester device will indicate the polarity of a battery or battery charger, either 6- or 12-volt. Est. cost: $3.
RADIO-TV EXPERIMENTER #789 Jun-Jul 1966 (v.20#3) pg. 89

Polarity indicator for a 6- or 12-volt battery or charger. Est. cost: $3.
SCIENCE & MECHANICS May 1968 (v.39#5) pg. 71