Detailed entries for one subject from the INDEX TO HOW TO DO IT INFORMATION.
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A 6.3-volt power supply for the Radio Shack CD3400 portable CD player is better regulated and has less noise than the typical battery eliminator.
AUDIO AMATEUR 2/1995 [Jun 1995] (v.26#2) pg. 16
Correction AUDIO AMATEUR 3/1995 [Aug 1995] (v.26#3) pg. 46

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

The Mobile One power supply, an ubiquitous base power supply. Convert a battery charger into a quality source of 13 VDC to power a mobile rig from 110 VAC.
CQ. THE RADIO AMATEUR'S JOURNAL Feb 1987 (v.43#2) pg. 26

Power supply circuit ideas, particularly for battery-powered applications. Part 1.
CQ. THE RADIO AMATEUR'S JOURNAL May 1992 (v.48#5) pg. 66

Power supply circuit ideas, particularly for battery-powered applications. Part 2. Negative supply circuits.
CQ. THE RADIO AMATEUR'S JOURNAL Jun 1992 (v.48#6) pg. 80

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

Battery charging and battery eliminator circuits.
CQ. THE RADIO AMATEUR'S JOURNAL Feb 1993 (v.49#2) pg. 60

Voltage adapter for your car. Build an adapter/cord combination that uses your automobile cigarette lighter to power any device that requires 3, 6, or 9 volts.
ELECTRONICS HOBBYISTS HANDBOOK 1993 pg. 21

Solar power supplies for portable radios, cassette players, etc. that are normally powered from 6-volt or 9-volt battery sources.
ELECTRONICS HOBBYISTS HANDBOOK Spring 1994 pg. 89

Six and 12-volt power supplies for car radios.
ELECTRONICS ILLUSTRATED Sep 1964 (v.7#5) pg. 102

A 12-volt or 9-volt converter plugs into the automobile cigarette lighter to power transistor radio. Components are built into the case of a 9-volt battery so the battery connectors don't have to be changed. Est. cost: $6.
ELECTRONICS ILLUSTRATED Sep 1971 (v.14#5) pg. 51

Circuit for a power supply which converts a +9-volt DC input to 700-volt, 0.25-mA output. Used to power a geiger counter.
ELECTRONICS NOW Sep 1996 (v.67#9) pg. 10

VTVM battery eliminator. Simple regulated power supply that replaces C-cell ohmmeter supply.
ELECTRONICS WORLD Apr 1971 (v.85#4) pg. 72

The synthetic battery or battery eliminator provides nominal 9-volt output at all load currents from zero up to more than 150 mA. Est. cost: over $5.
ELEMENTARY ELECTRONICS #763 Winter 1965 pg. 81

Diagram of a power supply for a portable tape recorder which uses two 1.5 volt cells. Supply works from 115 volts AC.
ELEMENTARY ELECTRONICS Mar-Apr 1966 (v.2#1) pg. 21

AC circuit to replace two 1.5-volt cells and one 9-volt battery in a portable tape recorder.
ELEMENTARY ELECTRONICS May-Jun 1966 (v.2#2) pg. 17

A transistor line power supply converts 110-volt AC to ample, well filtered, regulated 9-volt DC power for small transistorized radios.
ELEMENTARY ELECTRONICS May-Jun 1970 (v.10#2) pg. 34

Circuit for an electronically-regulated "A" battery eliminator for a 1- to 6-tube set using 01A tubes. Useful for powering antique radios.
ELEMENTARY ELECTRONICS May-Jun 1975 (v.15#3) pg. 79

Circuit for a "B-C" battery eliminator suitable for use with some antique radios.
ELEMENTARY ELECTRONICS Jul-Aug 1975 (v.15#4) pg. 86

Regulated power supply puts out the 13.8 volts needed by the newer 4-watt output CB mobile transcievers. Converts 117-volt AC to 13.8-volt DC in either 1.5-amp or 3-amp version. Est. cost: $25.
ELEMENTARY ELECTRONICS Jan-Feb 1976 (v.16#1) pg. 51
Correction ELEMENTARY ELECTRONICS May-Jun 1976 (v.16#3) pg. 20

Build an AC line power supply for antique radios. A combined A and B "battery" supply delivers 3.3 volts regulated. A second version delivers 22.5 and 45 volts DC. Each supply is made to appear authentic and appropriate by covering the case with the paper wrapper from a B battery.
ELEMENTARY ELECTRONICS Mar-Apr 1977 (v.17#2) pg. 43

13.8 volt regulated power supply converts a CB mobile transceiver or a 3 to 5-watt CB handi-walkie to base station operation.
ELEMENTARY ELECTRONICS Jan-Feb 1978 (v.18#1) pg. 48

The ABC's of "B" battery eliminators. Circuit for a typical "B" battery eliminator for a 1926 vintage radio. Provides 180 volts for all tubes and 67.5 volts DC for the detector.
ELEMENTARY ELECTRONICS May-Jun 1978 (v.18#3) pg. 79

Battery eliminator power supply for powering an antique Radiola III radio.
ELEMENTARY ELECTRONICS Jul-Aug 1979 (v.19#4) pg. 55

Plug-in power supply for calculator. Delivers either 3 or 9 volts. Est. cost: $6.
ELEMENTARY ELECTRONICS Jan-Feb 1981 (v.21#1) pg. 46

Solar-cell power converter will operate a 9-volt transistorized radio.
HANDS-ON ELECTRONICS Summer 1984 (v.2#1) pg. 30

12-volt power supply and a cabinet convert a car radio into a bookshelf stereo system.
HANDS-ON ELECTRONICS Jul-Aug 1986 (v.3#4) pg. 40

Power a portable cassette player from your car's battery using this series voltage regulator circuit.
HANDS-ON ELECTRONICS Apr 1987 (v.4#4) pg. 93

Automobile-power adapter connects to cigarette-lighter plug and provides 7.5-volts for use with a battery-powered cassette recorder.
HANDS-ON ELECTRONICS Aug 1987 (v.4#8) pg. 92

Auto-Power Adapter circuits eliminate batteries in electronic gear used in your automobile. Can be adjusted to supply 0- to 10-volts at currents up 3 amperes.
HANDS-ON ELECTRONICS Mar 1988 (v.5#3) pg. 82

VTVM Battery Substitute can be fed from an ordinary 6.3-volt filament transformer.
HANDS-ON ELECTRONICS Mar 1988 (v.5#3) pg. 96

Onboard computer. Tips on installing and using a Timex-Sinclair 1000 computer in the cockpit of an airplane to assist the pilot with navigation, calculations, etc. Includes a circuit for converting the 14-volt aircraft electrical system to power the computer.
HOMEBUILT AIRCRAFT Mar 1985 (v.12#3) pg. 56

DC regulated power supply for home use of your car's CB radio or tape deck. Voltage output range is adjustable from 12-to-15 volts, and can handle a 1.5 amp load.
INDUSTRIAL EDUCATION Feb 1978 (v.67#2) pg. 50

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

Schematic for a simple power supply to power a 13.8 Vdc CB radio from a 120 Vac source.
MODERN ELECTRONICS [1] Dec 1978 (v.1#9) pg. 8

Solar cell converter. Step up a low-voltage photovoltaic cell's output to power circuits from a 1.2-volt Ni-Cd battery. The solar cell keeps the Ni-Cd charged. A dc-to-dc converter steps up the output to power 5 to 15 volt circuits. Est. cost: $16.
MODERN ELECTRONICS [2] Aug 1986 (v.3#8) pg. 52
Correction MODERN ELECTRONICS [2] Oct 1986 (v.3#10) pg. 5

A 110-volt power supply to replace the four AA cells in an electronic flash unit.
MODERN PHOTOGRAPHY Jun 1974 (v.38#6) pg. 86

Tip tells how to use an AC adapter to replace an antique doorbell's battery.
OLD-HOUSE JOURNAL Mar-Apr 1997 (v.25#2) pg. 18

Universal power supply outputs from 5- to 15-volts DC at up to one ampere. Adapter cables make it easy to connect the power supply to a variety of devices.
POPTRONIX HOBBYISTS HANDBOOK Winter 1996 pg. 37

Cigarette lighter plug-in adapter to reduce an automobile's 12-volt DC to the 9-volt DC required by many battery-powered radios, etc.
POPULAR COMMUNICATIONS Jun 1990 (v.8#10) pg. 74

Supply to power antique radios which had battery power.
POPULAR ELECTRONICS [1] May 1964 (v.20#5) pg. 34

Transistor radio 9-volt auxiliary power supply.
POPULAR ELECTRONICS [1] Oct 1964 (v.21#4) pg. 65

Schematic to allow use of auto radio from standard 117 volt lines.
POPULAR ELECTRONICS [1] Nov 1964 (v.21#5) pg. 55

Schematic shows circuit to power 6- or 12-volt auto radio from 117 volt AC line.
POPULAR ELECTRONICS [1] Jan 1965 (v.22#1) pg. 8

Voltage-regulated battery power supply will furnish a constant 9-volt output and extend battery life well beyond "end-point" voltage. Whole unit fits into a plastic soap case.
POPULAR ELECTRONICS [1] Nov 1966 (v.25#5) pg. 85

Low-cost commercial battery eliminators used for calculators and radios can serve as 6-, 9-, and 12-volt transistor power supplies.
POPULAR ELECTRONICS [1] May 1972 (v.1#5) pg. 35

Simple circuit is capable of delivering 6, 7.5, or 9 volts at a maximum of 350 mA. Can be used to convert 12 volts for powering a portable tape recorder in an automobile.
POPULAR ELECTRONICS [1] Dec 1973 (v.4#6) pg. 22

Circuits for two supplies. (1) A voltage-regulated DC supply usable from 3 to 25 volts. (2) An adjustable-current DC supply usable as a battery charger or speed control and power source of battery-operated toys.
POPULAR ELECTRONICS [1] Sep 1974 (v.6#3) pg. 81

A 12-volt, DC, 6-amperes continuous supply for mobile and portable radio sets. Est. Cost: $18.
POPULAR ELECTRONICS [1] Dec 1974 (v.6#6) pg. 78

Circuit for a power supply to give 6.3 volts. Use to power CB transceivers or automobile tape players.
POPULAR ELECTRONICS [1] Apr 1975 (v.7#4) pg. 86

Battery eliminator circuit for 1.5-volt batteries in a VTVM.
POPULAR ELECTRONICS [1] Nov 1975 (v.8#5) pg. 106

Circuit allows a 4-ampere automobile battery charger to be used as a base power supply for a mobile CB transceiver.
POPULAR ELECTRONICS [1] Jan 1979 (v.15#1) pg. 86

Low-cost power supplies from recycled AC adapters. How to check out and utilize AC adapters (transformers) formerly used to power radios, calculators, shavers, etc.
POPULAR ELECTRONICS [1] Feb 1981 (v.19#2) pg. 57

Designing AC-to-DC power supply circuits to replace or supplement batteries.
POPULAR ELECTRONICS [2] May 1989 (v.6#5) pg. 71

Battery substitute circuit delivers eleven fixed voltages between 1.25 and 13.8 volts by means of a rotary switch.
POPULAR ELECTRONICS [2] Sep 1990 (v.7#9) pg. 26

Step-variable DC power supply which can be fed from an AC outlet or from your car battery. Delivers regulated fixed output voltages of 3, 6, 9, and 12 volts DC.
POPULAR ELECTRONICS [2] Dec 1990 (v.7#12) pg. 22

12-volt DC adapter circuit can supply about 1 amp at 6 or 9 volts to an external load.
POPULAR ELECTRONICS [2] Feb 1991 (v.8#2) pg. 91

Build a voltage adapter for your car. Use your cigarette lighter to provide 3, 6, or 9 volts to power portable devices.
POPULAR ELECTRONICS [2] Jun 1992 (v.9#6) pg. 47

DC power supply circuit for operating antique battery-powered radios. It is designed to prevent harming the tube filaments.
POPULAR ELECTRONICS [2] Mar 1993 (v.10#3) pg. 74
Added Info POPULAR ELECTRONICS [2] Jan 1997 (v.14#1) pg. 59

Solar power supply for portable radios, cassette players, etc. Can be configured to output 7.2 volts at 15 mA or 4.8 volts at 115 mA of regulated DC current.
POPULAR ELECTRONICS [2] Apr 1993 (v.10#4) pg. 37

DC power supply circuit, driven by an automobile battery, can provide regulated voltages from 4.5 to 13 volts with output currents up to 3 amps. Ideal for powering a handheld ham transceiver in your car.
POPULAR ELECTRONICS [2] Jan 1999 (v.16#1) pg. 49

Power supply for 1920's battery-powered radio sets. This circuit idea uses a computer power supply to provide the input voltages needed for filament, B+, and grid-bias supplies in old vacuum-tube radios.
POPULAR ELECTRONICS [2] Mar 1999 (v.16#3) pg. 63

Circuit to power transistor radios. Recharge 9-volt batteries or use 110-volt line.
POPULAR MECHANICS Sep 1963 (v.120#3) pg. 192

Twelve-volt DC power supply works off 110-volt AC line current . Allows you to use mobile CB, automobile radio or tape player inside your house. Est. cost: $20.
POPULAR MECHANICS Feb 1977 (v.147#2) pg. 175

Circuit for a battery eliminator for a toy pinball machine which is capable of delivering a surge of 4 amperes. Replaces four D-cells. Built around a 9-volt low-power calculator charger supply.
RADIO-ELECTRONICS Jun 1980 (v.51#6) pg. 70

Circuit to convert 117-volt AC into 1.5-volt DC to power a cordless clock.
RADIO-ELECTRONICS May 1985 (v.56#5) pg. 104

Solar power supply that can be used even at night. Solar cells are used to charge a Ni-Cd battery inside this 5-volt or 9-volt "booster".
RADIO-ELECTRONICS Aug 1989 (v.60#8) pg. 47, 70

Circuit for operating a Nintendo game (9 volts at 850 milliamps) from a 12-volt automobile electrical system.
RADIO-ELECTRONICS Mar 1990 (v.61#3) pg. 8

VTVM dry cell eliminator. A transistorized voltage regulator powered by the low-voltage winding on the VTVM power tranformer. This unit replaces the 1.5-volt cell used in most VTVMs. Est. cost: $3.
RADIO-TV EXPERIMENTER #798 Aug-Sep 1966 (v.21#1) pg. 27

Adapter to convert AC house current to replace 2 penlight cells in photo flashgun.
RADIO-TV EXPERIMENTER Feb-Mar 1968 (v.24#1) pg. 33

Power a 9-volt portable radio from a 12-volt auto battery via cigarette lighter plug.
SCIENCE & ELECTRONICS [1] Feb-Mar 1970 (v.28#1) pg. 16

BCB project lets you construct a reflex circuit and a universal B-plus power supply.
SCIENCE & ELECTRONICS [1] Dec 1970-Jan 1971 (v.28#6) pg. 61

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