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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 voltmeters, ammeters and other meters work.

Linear AC measurements using a "diode". Using a synchronous rectifier circuit to measure AC voltage and current with DC meters.
AUDIOXPRESS Jun 2001 (v.32#6) pg. 66

Meter shunts and how to make them.
CQ. THE RADIO AMATEUR'S JOURNAL Feb 1991 (v.47#2) pg. 32

Build a "snap on" RF current probe (meter) to check the operation of radial antennas.
CQ. THE RADIO AMATEUR'S JOURNAL Aug 1996 (v.52#8) pg. 22

Convert milliammeter to measure voltage or higher currents.
ELECTRONICS ILLUSTRATED Mar 1964 (v.7#2) pg. 89

Build a novel LCD ammeter (100 to 400 milliamperes) and RF power meter (an indicating 50-ohm RF dummy-load wattmeter) incorporating the "Duracell" battery testing strips (a thin-film resistor combined with a liquid-crystal bargraph display).
ELECTRONICS NOW Nov 1993 (v.64#11) pg. 57

Method for determining the correct resistance for a meter shunt.
ELECTRONICS NOW May 1995 (v.66#5) pg. 9
Added Info ELECTRONICS NOW Sep 1995 (v.66#9) pg. 12

Using the 7107 integrated circuit chip. It is a combination analog-to-digital converter, reference voltage, timing clock, and decoder/driver circuit for 7-segment LED displays. Circuits shown for a digital voltmeter, DC current meter, resistance meter, capacitance meter, frequency meter, etc.
ELECTRONICS NOW Nov 1996 (v.67#11) pg. 55
Correction ELECTRONICS NOW Feb 1997 (v.68#2) pg. 12

Make your own shunts for measuring current using a multimeter.
ELECTRONICS NOW Aug 1998 (v.69#8) pg. 51
Correction ELECTRONICS NOW Oct 1998 (v.69#10) pg. 12

Explanation and use of meters. Volt, Ohm, Milliammeters, Meggars, and Galvanometers.
ELEMENTARY ELECTRONICS May-Jun 1966 (v.2#2) pg. 21

Multi-range milliammeter is provided with an easy access fuse so that it can be easily changed to one specifically rated for the circuit under test.
ELEMENTARY ELECTRONICS Jan-Feb 1970 (v.9#3) pg. 69

Basic course in electricity and electronics. How to measure electricity. Different types of meters and how to use them to measure voltage and current.
ELEMENTARY ELECTRONICS Jul-Aug 1975 (v.15#4) pg. 79

Build a large-scale operating moving coil meter to learn how they work.
ELEMENTARY ELECTRONICS Sep-Oct 1976 (v.16#5) pg. 82

Convert a DC milliammeter to read higher values of current by adding a shunt.
ELEMENTARY ELECTRONICS Jan-Feb 1979 (v.19#1) pg. 40

Solar-cell tester. Measures both the voltage and amperage output under a variable load.
HANDS-ON ELECTRONICS Spring 1985 (v.2#4) pg. 40

Meter demonstrator for classroom use can illustrate the function of a voltmeter or an ammeter.
INDUSTRIAL EDUCATION May-Jun 1978 (v.67#5) pg. 52

Tips on calibrating ammeters, ohmmeters, wattmeters, etc.
INDUSTRIAL EDUCATION Nov 1979 (v.68#8) pg. 48

100,000-megohm-input meter indicates static electricity. Ultrasensitive electrometer-type voltage/current meter (picoammeter) expands your measurement world to one-trillionth of an ampere and a trillion ohms. Est. cost: $38.
MODERN ELECTRONICS [2] Jun 1988 (v.5#6) pg. 24

High-current shunt for DMMs (digital multimeters) extends current-measuring capability beyond the usual 10 amperes.
MODERN ELECTRONICS [2] Aug 1988 (v.5#8) pg. 48

Variable shunt increases the range of a milliammeter up to five times.
POPULAR ELECTRONICS [1] Jan 1968 (v.28#1) pg. 64

Modify a milliammeter to be a microammeter with this circuit.
POPULAR ELECTRONICS [1] Jun 1968 (v.28#6) pg. 60

AC ammeter measures up to five amperes. Est. cost: $3.
POPULAR ELECTRONICS [1] May 1969 (v.30#5) pg. 50

Surplus D'Arsonval movement meters are easily converted to special-purpose voltmeters and ammeters.
POPULAR ELECTRONICS [1] Apr 1974 (v.5#4) pg. 41

Printed circuit board tester which uses an op amp can determine the presence of current flow in a printed circuit board without breaking the foil trace. It gives an estimate of the amount of current.
POPULAR ELECTRONICS [1] Feb 1977 (v.11#2) pg. 47

How to modify a basic 1-mA movement to measure currents from milliamperes to hundreds of amperes.
POPULAR ELECTRONICS [1] Jun 1977 (v.11#6) pg. 67

Precision references for current and voltage are used to check the accuracy of test instruments.
POPULAR ELECTRONICS [1] Nov 1979 (v.16#5) pg. 87

Low-cost op-amp system can measure weak direct currents such as solar-cell output. Measures from 0 to 50 microamps. Estimated cost: $15.
POPULAR ELECTRONICS [1] Jan 1980 (v.17#1) pg. 59

Measuring large currents with a DMM. Use a high-current shunt to measure tens or hundreds of amperes. How to make the shunt.
POPULAR ELECTRONICS [1] Sep 1980 (v.18#3) pg. 90

Current-detection circuits. (1) High-gain current sensor can be used to detect the presence of low-level current circulating through a printed-circuit board's copper traces. (2) Inductive current sensor is designed to seek out AC current flow in electrical wiring and electronic circuitry.
POPULAR ELECTRONICS [2] Nov 1989 (v.6#11) pg. 84

Meter-range extender circuits that increase the sensitivity of an analog current meter. (1) Amplified DC microammeter. (2) Low-voltage voltmeter. (3) Meter-calibration circuit. (4) Low-range ohmmeter.
POPULAR ELECTRONICS [2] Apr 1991 (v.8#4) pg. 77

All about meters. What you need to know to design ammeters, voltmeters, and ohmmeters.
POPULAR ELECTRONICS [2] May 1991 (v.8#5) pg. 28
Added Info POPULAR ELECTRONICS [2] Aug 1991 (v.8#8) pg. 4

Simple transistor circuit, configured as an RF oscillator, is used to detect changes in DC current flow. A modification allows linear responses to relatively small current changes.
POPULAR ELECTRONICS [2] Sep 1991 (v.8#9) pg. 75, 76

Increase the range of an ammeter with this simple add-on.
POPULAR ELECTRONICS [2] Nov 1994 (v.11#11) pg. 31

Using digital panel meters to enhance the look and performance of your next project. Circuits include: (1) AC power supply, (2) DC-to-DC supply, (3) DC ammeter, (4) automobile voltage monitor, (5) digital DC voltmeter, and (6) low-ohms meter.
POPULAR ELECTRONICS [2] Oct 1996 (v.13#10) pg. 39
Correction POPULAR ELECTRONICS [2] Jan 1997 (v.14#1) pg. 6

Build an AC amp meter (ammeter).
POPULAR ELECTRONICS [2] Sep 1998 (v.15#9) pg. 40
Correction POPULAR ELECTRONICS [2] Dec 1998 (v.15#12) pg. 5

Automobile electrical system tester plugs into your car lighter socket. This meter supplies all the information of an ammeter while your car is operating. Est. cost: $10.
POPULAR MECHANICS Oct 1977 (v.148#4) pg. 68

Nine-in-one troubleshooter does the work of nine individual test meters by means of one universal meter coupled with six interchangeable test modules. Part 3. Storage battery cell tester and AC ammeter.
POPULAR SCIENCE Apr 1966 (v.188#4) pg. 192

Electrical appliance tester you can build. Check for shorts, continuity, current leakage and measure current draw.
POPULAR SCIENCE Sep 1971 (v.199#3) pg. 124

How to use split-core ammeters to test home appliances.
POPULAR SCIENCE Nov 1977 (v.211#5) pg. 150

Servo current monitor. This electronic circuit is inserted between the output from a radio control receiver and a servo. The amount of current drawn is displayed on an LED bargraph.

How to modify the full-scale reading of an existing voltmeter or ammeter.
RADIO-ELECTRONICS Nov 1980 (v.51#11) pg. 82

How to use digital panel meters to measure voltage, current, resistance, capacitance, frequency, temperature, etc. Part 1. Voltage, current and resistance meters.
RADIO-ELECTRONICS Feb 1984 (v.55#2) pg. 67

Build this clamp-on DC ammeter. This ammeter uses Hall-effect transducers to let you measure DC current using a clamp-on probe.
RADIO-ELECTRONICS Jul 1984 (v.55#7) pg. 61

Circuit for a low-current ammeter uses the new OP-41 op-amp from Precision Monolithics Inc.
RADIO-ELECTRONICS May 1986 (v.57#5) pg. 89

Op-amps show their versatility in instrumentation circuits. Includes circuits for rectifier, peak detector, AC/DC converter, voltmeter, ammeter, ohmmeter, voltage reference, and power supply.
RADIO-ELECTRONICS Sep 1989 (v.60#9) pg. 59

Tips on accurately sensing or measuring an electrical current.
RADIO-ELECTRONICS Dec 1991 (v.62#12) pg. 70

AC ammeter with three ranges: 0-50 ma, 0-500 ma, 0-5 amps. Includes male and female AC sockets. Est. cost: $14.
RADIO-TV EXPERIMENTER Feb-Mar 1967 (v.22#1) pg. 72

Build a hot-wire ammeter which will measure up to two amperes.
RADIO-TV EXPERIMENTER Aug-Sep 1969 (v.27#1) pg. 51

An iron vane ammeter will indicate from 0 to 1 ampere, AC or DC. A simple project built of wood, wire and a tin can.
SCIENCE & ELECTRONICS [1] Oct-Nov 1969 (v.27#2) pg. 61

A large-size hot wire ammeter.
SCIENCE & ELECTRONICS [1] Dec 1970-Jan 1971 (v.28#6) pg. 77

Moving vane ammeter works on AC and DC indicates 0 to 1 ampere.
SCIENCE & ELECTRONICS [1] Dec 1970-Jan 1971 (v.28#6) pg. 83

Build an electrostatic microammeter capable of measuring current from 25 millionths of an ampere to 5 billionths of an ampere in circuits that carry potential of up to 500,000 volts.
SCIENTIFIC AMERICAN Oct 1973 (v.229#4) pg. 123

The Model A Ford ammeter. Understanding the role of an ammeter in the electrical system of an automobile. How to read and interpret what an ammeter is telling you.
SKINNED KNUCKLES #166 May 1990 (v.14#10) pg. 23

Checking your airplane's ammeter. Includes construction of a meter movement calibration test set.
SPORT AVIATION Jun 1999 (v.48#6) pg. 92