Elenco Electronics MO-1251 Manual de usuario descargar pdf (Pagina 4)

100

THE

COVER

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How' TO ISS

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BUILD

YOUR OMR

SECURITY

A versatile

vlr...nle.

reu can

build '

RL7LD A

DIG

Whether you live in

large

city or

rural

area crime has

become a

frightening fact

life.

One

reaction

to the

problem

is the

sometimes

confusing

proliferation

of devices

sold to

protect

your home, family.

and possessions. How

can

you

de-

cide

what kind

protection

best

suits

your

circumstances?

this

is-

sue.

sort out some of the home -

security

options

that

are available

today. Turn to

page 33

to read

about

how

high -tech

systems work

and

what features they

offer.

The

devices

pictured

the

cover are

represen-

tative of

the two

basic types of

home

-security systems -wired

and

wireless.

Beginning on page 42, we

describe

how

install

each kind of

system. And,

page

47,

there's a

complete wireless

home -security

system that you

can build yourself.

COMING

NEXT MONTH

THE MAY ISSUE

ON SALE

APRIL 4.

EXPERIMENTING

WITH

ISDN

Build an

ISDN -compatible development

system

for under

$500.

VIDEO

TAPE

Are

"high

grade" tapes

worth the high price?

BUILD AN I -R EXTENDER

Extend the

reach

your remote

control

any

room

in the

house

and get

video

signals

where

you

want

them.

REACTS 16

-BIT

A/D

CONVERTER

Open

the

Ele

ctronics

Advanced Control

system

to the outside

world.

a service to

readers.

RADIO -ELECTRONICS publishes

available plans or

information

relating

newsworthy products.

techniques

and scientific and

technological developments.

Because of possible

variances

the

quality

and condition of

materials

and

workmanship

used

readers.

RADIO- ELECTRONICS

disclaims any

responsibility

for

the safe and proper

functioning

of reader -built projects based upon or

from plans or

information published in this

magazine

Since some of the equipment

and circuitry described in

RADIO- ELECTRONICS

may

relate

to or be covered

U.S.

patents.

RADIO- ELECTRONICS disclaims any

liability

for

the infringement of such

patents by the

making.

using.

or selling of any such

equipment or circuitry. and

suggests that anyone

interested

such

projects

consult a patent

attorney.

RADIO- ELECTRONICS.

(ISSN

0033 -7862)

April

1989. Published

monthly

by Gernsback

Publications.

Inc..

500

-B Bi -County

Boulevard. Farmingdale. NY

11735

Second -Class

Postage paid at

Farmingdale. NY and additional

mailing

offices

Second -Class

mail registration No. 9242 authorized

at Toronto. Canada One-year

subscription

rate

U S.A.

and possessions $17

97. Canada

$23.97.

all other countries

$26 97 All subscription

orders payable in U S.A.

funds only.

via international

postal money order or

check

drawn on a

U S.A.

bank Single copies

1989

by Gernsback

Publications.

Inc All rights

reserved. Printed

U.S.A.

POSTMASTER: Please send address

changes to RADIO-

ELECTRONICS. Subscription

Dept . Boa 55115.

Boulder. CO

80321.5115

stamped self- addressed

envelope

must

accompany

all submitted

manuscripts and /or artwork or

photographs if

their return is

desired should they be

rejected. We disclaim

any

responsibility for the

loss

or damage of

manuscripts and /or

artwork or

photographs while in

our

possession or otherwise

É Electronics

Hugo Gernsback

11884 -1967) founder

M. Harvey Gernsback.

editor

-in- chief, emeritus

Larry

Steckler,

EHF. CET,

editor -in

-chief

and publisher

EDITORIAL DEPARTMENT

Art Kleiman, editorial director

Brian C. Fenton,

editor

Carl

Laron, WB2SLR.

editorial associate

Marc

Spiwak,

associate

editor

Jonathan

Gordon,

assistant technical editor

Teri Scaduto, assistant

editor

Jeffrey

K. Holtzman,

computer editor

Robert A. Young. assistant

editor

Byron

G. Wels,

editorial

associate

Jack

Darr,

CET.

service editor

Robert

Grossblatt,

circuits editor

Larry

Klein, audio editor

David

Lachenbruch,

contributing editor

Don

Lancaster.

contributing

editor

Richard D. Fitch,

contributing editor

Kathy

Campbell, editorial

assistant

Andre

Duzant, technical illustrator

Injae Lee. assistant

illustrator

PRODUCTION DEPARTMENT

Ruby M. Yee,

production

director

Robert A. W. Lowndes,

editorial

production

Karen Tucker, advertising

production

Marcella Amoroso, production

traffic

CIRCULATION

DEPARTMENT

Jacqueline

Cheeseboro,

circulation director

Wendy

Alanko,

circulation

analyst

Theresa

Lombardo,

circulation assistant

Typography by

Mates

Graphics

Cover background

The

Stock

Market/

Peter

Garfie

Inset photo by

Diversified

Photo

Services

Radio

-Electronics

is indexed

Applied Science B

Technology Index

and Readers

Guide

Periodical Liter-

ature.

Microfilm

Microfiche editions are

available.

Contact

circulation depart-

ment

for

details.

Advertising Sales Offices

listed

page 104.

31)1

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Elenco Electronics MO-1251 Manual de usuario Pagina 4

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