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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 construct a d.c.-to-d.c. converter which allows a battery-powered HT (walkie-talkie) to operate from an automobile battery or other source instead of internal NiCads.
CQ. THE RADIO AMATEUR'S JOURNAL Jul 1983 (v.39#7) pg. 24

Power supply circuit ideas, particularly for battery-powered applications. Part 3. DC/DC converters boost 1.5 volts to 5 volts.
CQ. THE RADIO AMATEUR'S JOURNAL Sep 1992 (v.48#9) pg. 126
Added Info CQ. THE RADIO AMATEUR'S JOURNAL Nov 1992 (v.48#11) pg. 64

How to drop a battery voltage.
ELECTRONICS ILLUSTRATED Mar 1963 (v.6#2) pg. 110

Diodes, their theory and their use in a 12-volt to 9-volt shunt-type regulator to drive a transistor radio from a car battery.
ELECTRONICS ILLUSTRATED Jul 1966 (v.9#4) pg. 70

Voltage converters. How to build a variety of voltage-conversion circuits and put them to work in your own circuit designs.
ELECTRONICS NOW Apr 1995 (v.66#4) pg. 42
Correction ELECTRONICS NOW Jul 1995 (v.66#7) pg. 12

Using the DC-to-DC converter module as an alternative to the custom design of a power supply.
ELECTRONICS NOW Dec 1995 (v.66#12) pg. 37

Negative voltage converter. Build a negative voltage supply from a CMOS voltage converter IC and obtain minus 12-volts the easy way.
ELECTRONICS NOW Jan 1997 (v.68#1) pg. 34
Added Info ELECTRONICS NOW May 1997 (v.68#5) pg. 10

Inexpensive IC voltage converter permits operation of all transistorized 6-volt battery-operated equipment from the 12-volt battery source of any vehicle.
ELECTRONICS WORLD Jan 1970 (v.83#1) pg. 68

A wooden rack holding a 12-volt automobile battery and a combination battery charger/inverter results in a portable 117-volt power supply.
ELEMENTARY ELECTRONICS Jan-Feb 1970 (v.9#3) pg. 50

12-volt to 250-volt DC/DC converter. Build a 250V DC B+ supply to run a tube circuit in a car or from batteries.
GLASS AUDIO 4/1999 (v.11#4) pg. 40

Alter the output of your power supply by adding a voltage doubler, voltage inverter, and/or voltage multiplier. Three circuits shown.
HANDS-ON ELECTRONICS Oct 1987 (v.4#10) pg. 92

Inverter for your automobile converts 12-volts DC into 120-volts AC. Capable of powering AC devices drawing up to 40 watts.
HANDS-ON ELECTRONICS Jul 1988 (v.5#7) pg. 73

Circuit for an adapter to produce a 6-volt output from a 12-volt car system. Useful for powering 6-volt portable radios using the automobile electrical system.
MODERN ELECTRONICS [1] May 1978 (v.1#3) pg. 7

Voltage converter circuits using the LT1070 switching voltage regulator. Includes a 5- to 12-volt boost converter, a positive-to-negative boost converter, and a high-voltage output converter.
MODERN ELECTRONICS [2] Mar 1988 (v.5#3) pg. 66
Added Info MODERN ELECTRONICS [2] Jul 1988 (v.5#7) pg. 5

Converting current to voltage. Three amplifier circuits are shown.
MODERN ELECTRONICS [2] May 1988 (v.5#5) pg. 28

New developments in op amps. Includes circuits for an instrumentation amplifier, thermocouple thermometer, temperature-compensated crystal-oscillator, and a 9-volt to 5-volt converter.
MODERN ELECTRONICS [2] Sep 1988 (v.5#9) pg. 72

Dc-to-Dc converters. A simplified approach to designing and building circuits to convert one DC voltage to another.
MODERN ELECTRONICS [2] Nov 1990 (v.7#11) pg. 48

Tips on traveling abroad with electronics equipment. Potential voltage problems and some solutions.
MODERN PHOTOGRAPHY Dec 1972 (v.36#12) pg. 67

Probing the mysteries of the inverter. Part 1. How an inverter produces alternating current (AC) from direct current (DC).
MOTHER EARTH NEWS #80 Mar-Apr 1983 pg. 134

Probing the mysteries of the inverter. Part 2.
MOTHER EARTH NEWS #81 May-Jun 1983 pg. 130

Tips on using power inverters (12-volts DC to 120-volts AC) to power electronic flash units on location.
PHOTOMETHODS Sep 1988 (v.31#9) pg. 19
Added Info PHOTOMETHODS Feb 1989 (v.32#2) pg. 14

Schematic for an autotransformer that can raise or lower AC line voltage by 5 or 10 volts.
POPULAR COMMUNICATIONS Apr 1991 (v.9#8) pg. 51

A 6- to 12-volt "Up-Verter". Equip 6-volt automobiles to power 12-volt accessories with this converter. Handles up to 40 watts. Est. cost: $20.
POPULAR ELECTRONICS [1] Oct 1967 (v.27#4) pg. 67

Power inverter converts 12-volt DC current into 117-volts AC, 100-watts maximum.
POPULAR ELECTRONICS [1] May 1969 (v.30#5) pg. 65

DC/dc converter circuit.
POPULAR ELECTRONICS [1] Feb 1970 (v.32#2) pg. 105

Transformerless DC-to-AC converter is good for any mobile application. Basically, it is a DC chopper plus voltage-doubler rectifier circuit.
POPULAR ELECTRONICS [1] Mar 1971 (v.34#3) pg. 86

Boost 9-volt batteries to 300-volt output with this converter. For use with geiger tubes.
POPULAR ELECTRONICS [1] May 1974 (v.5#5) pg. 24

Circuit for using a 555 oscillator to produce a negative 12-volt output from a +15-volt input.
POPULAR ELECTRONICS [1] Aug 1974 (v.6#2) pg. 98

A look at dc/dc converters. Typical circuits for converting one dc voltage to a higher one.
POPULAR ELECTRONICS [1] May 1975 (v.7#5) pg. 76

Build a sine-wave inverter. Boost 12 volts DC to 117 volts AC at 100 watts. Also used to recharge storage batteries. Est. cost: $70.
POPULAR ELECTRONICS [1] Jun 1976 (v.9#6) pg. 43

High-voltage dc/dc converters. Typical circuits to generate the high-voltages needed for neon lamps, lasers, flash tubes and other applications.
POPULAR ELECTRONICS [1] Oct 1976 (v.10#4) pg. 107

Circuit for a power supply that will reduce 12-volt dc automobile electrical system power to 5-volts regulated for driving a digital clock.
POPULAR ELECTRONICS [1] Sep 1977 (v.12#3) pg. 96

Typical circuits for integrated circuit voltage regulators for converting 110-volt ac power to low-voltage dc applications.
POPULAR ELECTRONICS [1] Oct 1977 (v.12#4) pg. 88

Miniature dc-dc converter allows a tiny watch battery to power a neon lamp or even a powerful semiconductor-laser pulser which require 70 to 150 volts at relatively low current.
POPULAR ELECTRONICS [1] May 1979 (v.15#5) pg. 93

Control the speed of small dc motors, the brightness of a lamp, or otherwise drop a dc voltage by using pulse-width modulation.
POPULAR ELECTRONICS [1] Jun 1979 (v.15#6) pg. 62
Correction POPULAR ELECTRONICS [1] Sep 1979 (v.16#3) pg. 6

An integrated polarity converter. A look at the Intersil ICL 7660 voltage polarity converter chip which generates a negative voltage from a positive input voltage. May become a standard feature in computer power supplies.
POPULAR ELECTRONICS [1] Sep 1980 (v.18#3) pg. 112

Dual chopper amplifier circuit is used to amplify a minute DC signal so that it can be read out on any digital voltmeter. The circuit works by converting the input into an AC signal, amplifying the AC, and then rectifying back to DC.
POPULAR ELECTRONICS [2] Feb 1989 (v.6#2) pg. 84

Inverter circuit can deliver AC or DC of several hundred volts from an input of 12 or 14 volts.
POPULAR ELECTRONICS [2] Jun 1989 (v.6#6) pg. 24

Power inverter circuit can deliver high voltage AC or DC from a 12 VDC input.
POPULAR ELECTRONICS [2] Oct 1989 (v.6#10) pg. 26
Correction POPULAR ELECTRONICS [2] Jan 1990 (v.7#1) pg. 4

Using appliances overseas. Learn exactly how to adapt your U.S. electrical equipment for overseas electrical power.
POPULAR ELECTRONICS [2] Jan 1990 (v.7#1) pg. 67

Collection of 555 oscillator/timer circuits. (1) Astable multivibrator. (2) Modified astable. (3) Add-on LED dual-flasher circuit. (4) Add-on high-power dual-lamp flasher circuit. (5) DC-to-DC converter. (6) Dual-tone generator.
POPULAR ELECTRONICS [2] Jan 1994 (v.11#1) pg. 72

Switch-operated circuit incorporating a capacitor is used to convert an output voltage from positive to negative.
POPULAR ELECTRONICS [2] Mar 1997 (v.14#3) pg. 73

Circuit takes a positive voltage and turns it upside down to produce a negative power supply.
POPULAR ELECTRONICS [2] May 1997 (v.14#5) pg. 62

Simple circuit functions as a power supply voltage inverter. Use it to supply the negative voltage for bipolar op-amp configurations.
POPULAR ELECTRONICS [2] Dec 1997 (v.14#12) pg. 68

How to make a portable inverter to change 12-volt DC into 117-volt AC to power appliances on a trip.
POPULAR MECHANICS May 1971 (v.135#5) pg. 168

DC to AC inverter converts 12 volt DC to 120 volts, 60 cycle AC to power anything drawing less than 120 watts.
POPULAR SCIENCE Jul 1965 (v.187#1) pg. 112

Use a 555 IC to build a voltage-to-frequency converter. Use your frequency counter to measure voltages up to 5 volts.
RADIO-ELECTRONICS Jan 1982 (v.53#1) pg. 34

Voltage converter IC lets you power analog circuits from a digital supply. Typical circuit applications shown.
RADIO-ELECTRONICS May 1982 (v.53#5) pg. 91

Easy-to-build power inverter allows AC devices to be operated from a 12-volt DC battery. Equip it to "kick in" automatically for use during a power failure and you have an uninterruptable power supply.
RADIO-ELECTRONICS Mar 1985 (v.56#3) pg. 43
Correction RADIO-ELECTRONICS Jun 1985 (v.56#6) pg. 20

Circuit for a 12-to-6 volt DC converter.
RADIO-ELECTRONICS Apr 1985 (v.56#4) pg. 80

Circuit to get a negative voltage from a single-ended positive supply uses only a single inverter.
RADIO-ELECTRONICS Mar 1986 (v.57#3) pg. 90

Simple switching regulator steps up two AA cells or drops down a 9-volt battery to give you a fixed +5-volt.
RADIO-ELECTRONICS Apr 1988 (v.59#4) pg. 74

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

Understanding electricity in foreign countries. How to check the voltage and use converters to power electrical equipment designed for 120 volt, AC, 60 Hz.
RANGEFINDER Nov 1990 (v.39#11) pg. 30

Three circuits to reduce 12 volts DC to 6.3 volts without a transformer.
SCIENCE & ELECTRONICS [1] Feb-Mar 1970 (v.28#1) pg. 15

A basic RC drive corrector. Circuit for an inverter (12-volt DC to 110-volt AC) can also function as a telescope drive corrector by adding push buttons.
TELESCOPE MAKING #10 Winter 1980-81 pg. 36