Radio Shack 13.8VDC 15A Power Supply 22-508 プリント

Make all other connections before you connect the 
power supply to standard AC power.

1. Turn off the device requiring power.
2. Turn off the power supply.
3. Turn the red and black binding output posts 

counterclockwise to expose the wire holes.

4. Insert the device’s positive wire (usually red) 

into the red binding post’s wire hole. Tighten the 
binding post to secure the wire in place.

5. Insert the device’s negative wire (usually black) 

into the black binding post’s wire hole. Tighten the 
binding post to secure the wire in place.

6. Connect the power supply’s AC cord to a standard 

120V AC outlet.

To avoid damage to the power supply and device:

•  Make sure your connections match the correct polarity 

(+ to +, – to – ).

•  Do not let the ends of the positive and negative wires 

touch each other.

•  The binding posts’ wire holes can accommodate wire up 

to 18 gauge.

22-508

power supply 

user’s guide

Input Voltage .................................................................................120VAC
Input Frequency ............................................................................... 60 Hz
Output Voltage ............................................................................ 13.8VDC 

±0.7 Volts

Output Current .......................................15 Amps DC continuous (max.)
Line Regulation ............................................................... Less Than ±1%
Load Regulation .............................................................. Less Than ±5%
Overload Protection ..........................................................................Fuse, 

6.3A/250V

Output Ripple .......................................................................... 200m V RMS
Design ............................................................................... Switching Type
Operating Temperature .......................................32° to 104°F (0° to 40°C)
Storage Temperature  .....................................–4° to 140°F (–20° to 60°C)
Input Cable .......................................................18 AWG x 3C, SVT 6 Feet
Output Terminal ......................................Binding Post 10 Amp/125 Volts
Power Switch .................................................. Illuminated, 10A/250 VAC
Dimensions (HWD) ........................................... 6

5

/

16

 x 6

15

/

16

 x 2

3

/

16

 inches

(160 x 176.5 x 55 mm)

Weight  ........................................................................................... 3.08 Ibs 

(1.4 kgs)

Specifications are typical; individual units might vary. Specifications 

are subject to change and improvement without notice.

Press POWER to turn on the power supply. If POWER 
does not light:

•  Check your connections and confirm the AC 

outlet has power.

•  If the outlet has power, turn off the power 

supply and reduce the load (use a device that 
requires 13.8V DC or less). Press POWER. 

Your power supply’s overload protection circuit 
automatically shuts down the power supply when 
it becomes overloaded. It resets when you turn off 
the power supply.

This product is warranted by RadioShack against manufacturing defects in material and 
workmanship under normal use for ninety (90) days from the date of purchase from 
RadioShack company-owned stores and authorized RadioShack franchisees and dealers. 
For complete warranty details and exclusions, check with your local RadioShack store.

RadioShack Customer Relations
200 Taylor Street, 6th Floor, Fort Worth, TX 76102

04/04

This equipment has been tested and found to comply with the limits 
for a Class B digital device, pursuant to Part 15 of the FCC Rules. 
These limits are designed to provide reasonable protection against 
harmful interference in a residential installation. This equipment 
generates, uses, and can radiate radio frequency energy and, if not 
installed and used in accordance with the instructions, may cause 
harmful interference to radio communications. 
However, there is no guarantee that interference will not occur 
in a particular installation. If this equipment does cause harmful 
interference to radio or television reception, which can be determined 
by turning the equipment off and on, the user is encouraged to try to 
correct the interference by one or more of the following measures:

•  Reorient or relocate the receiving antenna.
•  Increase the separation between the equipment and receiver. 
•  Connect the equipment into an outlet on a circuit different from that 

to which the receiver is connected. 

•  Consult your local RadioShack store or an experienced radio/TV 

technician for help.

If you cannot eliminate the interference, the FCC requires that you 
stop using your power supply. Changes or modifications not expressly 
approved by RadioShack may cause interference and void the user’s 
authority to operate the equipment.
This device complies with Part 15 of the FCC Rules. Operation is 
subject to the following two conditions: (1) this device may not cause 
harmful interference, and (2) this device must accept any interference 
received, including interference that may cause undesired operation.

©2004. RadioShack Corporation. 
All rights reserved. RadioShack and 
RadioShack.com are trademarks 
used by RadioShack Corporation.

22-508 

07A04 

Printed in China

Read Instructions — Safety and operating instructions should be read prior to 

use.
Retain Instructions — The safety and operating instructions should be retained 

for future reference.
Heed Warnings — Follow all warnings on the appliance and in the instructions.
Cleaning — Unplug this appliance from the wall outlet before cleaning. Use a 

damp cloth for cleaning. Do not use liquid or aerosol cleaners.
Water and Moisture — Do not use this appliance near water (for example, near 

a bathtub, washbowl, kitchen sink, or laundry tub; in a wet basement; or near a 

swimming pool).
Mounting Accessories — Do not place appliance on an unstable cart, stand, 

tripod, bracket, or table. The appliance may fall, causing injury to a child or 

adult, and damage the appliance. Use only with a cart, stand, tripod, bracket, 

or table recommended by the manufacturer or sold with the appliance. Follow 

the manufacturer’s mounting instructions, and use a recommended mounting 

accessory.
Ventilation — Slots and openings in the cabinet provide ventilation, ensure 

reliable operation, and protect from overheating. Do not block or cover these 

openings, and do not place the appliance on a bed, sofa, rug, or other similar 

surface. Do not place the appliance in a built-in installation such as a bookcase 

or rack unless it provides proper ventilation as specified by the manufacturer.
Heat — The appliance should be situated away from heat sources such as 

radiators, heat registers, stoves, or other appliances that produce heat.
Power Sources — Use this appliance with the power source indicated on its 

marking label. If you are not sure of your home’s power type, consult your 

appliance dealer or local power company.
Grounding or Polarization — This appliance is equipped with a three-wire 

grounding-type plug, a plug having a third (grounding) pin. This plug will only fit 

into a grounding-type power outlet. This is a safety feature. If you are unable to 

insert the plug into the outlet, contact your electrician to replace your obsolete 

outlet. Do not defeat the safety purpose of the grounding-type plug.
Power-Cord Protection — Route power-supply cords so they are not likely to 

be walked on or pinched by items placed on or against them, paying particular 

attention to cords at plugs, convenience receptacles, and the point where they 

exit from the appliance.
Cleaning — The appliance should be cleaned only as recommended by the 

manufacturer. Clean by wiping with a cloth slightly dampened with water. Avoid 

getting water inside the appliance.
Power Lines — An outside antenna system should not be located in the vicinity 

of overhead power lines or other electric light or power circuits, or where it can 

fall into such power lines or circuits. When installing an outside antenna system, 

extreme care should be taken to keep from touching power lines or circuits, as 

contact with them might be fatal. 
Nonuse Periods — The appliance’s power cord should be unplugged from the 

outlet when it is to be left unused for a long period of time.
Overloading — Do not overload wall outlets, extension cords, or integral 

convenience receptacles. This can result in fire or electric shock.
Objects and Liquids — Never spill liquids or push objects of any kind into this 

appliance through openings, as they may touch dangerous voltage points or 

short out parts that could result in a fire or electric shock. 
Carts and Stands — If the appliance is used with a cart or stand, the cart or 

stand should be a type recommended by the manufacturer. An appliance and 

cart combination should be moved with care. Quick stops, excessive force, and 

uneven surfaces cause the appliance and cart combination to overturn. 
Damage Requiring Service — Refer servicing to qualified service personnel 

under these conditions:

*  When the power-supply cord or plug is damaged.

*  Liquid was spilled or objects fell in the appliance.

*  If the appliance has been exposed to rain or water.

*  If the appliance does not operate normally by following the operating 

instructions. Adjust only those controls that are covered by the operating 

instructions, as an improper adjustment of other controls may result in 

damage and will often require extensive work by a qualified technician to 

restore the appliance to normal operation.

*  If the appliance has been dropped or damaged.

*  When there a distinct change in performance.

Servicing — Do not attempt to service this appliance yourself, as opening or 

removing covers may expose you to dangerous voltage or other hazards. Refer 

all servicing to qualified service personnel.
Replacement Parts — When replacement parts are needed, use only parts 

specified by the manufacturer or parts with the same characteristics as the 

original part. Substitutions may result in fire or electric shock.
Safety Check — Upon completion of service or repairs, ask the service 

technician to perform safety checks to determine if the appliance is in operating 

condition. 
Lightning — For added protection during a lightning storm, or when the 

appliance is unused for long periods of time, unplug it from the wall outlet. This 

prevents damage due to lightning and power surges.
Attachments — Do not use attachments not recommended by the product 

manufacturer as they may cause hazards.
Wall or Ceiling Mounting — The product should be mounted to a wall or ceiling 

only as recommended by the manufacturer.

black binding post

red binding post