Metra Electronics DAT Combo Uživatelský manuál stáhnout pdf (Strana 25)

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A Hot Note

1

recently

read

in

Variety that a musician

was

killed as a result of electrocution

while

playing

an electric guitar.

How

can this

happen?

-H. H.,

Van Nuys,

Calif.

He must have been

in

a

bathtub

or

standing

on a

wet floor when it happened. Alvino

Rey

and others

have been playing electric guitars for

years

with no ill

effects.

The danger of electric

shock can be great under

some

conditions.

For

example,

a

skindiver,

who was

testing

an under-

water

TV camera in Al Ogilvié s swimming

pool

in

California

would

have been electrocuted

when

he took the camera into the pool

if it

hadn't been noted that the camera

was

"hot"

to

the touch

when

the camera

was handled at pool

-

side.

Grounding

the

shield of

the camera cable

saved the skin

diver's

life. The camera

was

"hot"

because

of

the line -filter capacitors

in its power

supply

which put

the case

about 60

volts

above

ground potential. The

same

hazard exists

with

TV sets

and

hi -fi

devices.

Moral: Don't touch

any appliance

connected

to

the AC line

when

bathing.

Crystal vs.

Mechanical

Would you please

tell

me

how to

connect a

mechanical

filter

to my communications re-

ceiver

(diagram

enclosed)?

-J. B., Topeka, Kansas

Your set

already

has

an adjustable

crystal

filter whose bandpass or selectivity can

be

varied. You don't need a

mechanical

filter.

Receiver

design engineers are

still arguing

which

is better, a crystal filter

or a mechanical

filter. They're

both good. If

I were

you,

I'd

keep what you

have.

, t'rr"7.,

L

t. r

1

5f 1r

. iy, ,

t,

firtm r . .

"I wasn't calling you! I

was telling

my

kids to

'come

on in,

quick'!"

FEBRUARY-

MARCH,

1967

NOW AT

YOUR NEWSSTAND!

New

1967

Electronics

Hobbyist Annual

Hours of

"How To" Enjoyment

for PRO

&

NOVICE

S'

00 FOR A

LIMITED

TIME ONLY ...

You can

purchase

the

newest, most

exciting

magazine

for those

whose

interest

in

electronics

is on the hobby

level. The

Electronics Hobbyist

contains

easy

to

learn, tested

and

proven construction

projects of

every

de-

scription,

Literature Library and New

Products

sections

as well as such new departments as CI3

News and Views, Hi Fi Trends and

Communica-

tittna

for

the

Ham

/S \ \'1..

SOME CONSTRUCTION

PROJECTS

INCLUDE:

Audio Compressor

Ohms -Range Expander

Dial -An

-Ohm

6 -Meter Solid -State Walkie-

Talkie

Transi -Match

A

Go -Go Stereo Compact

100 -kHZ Calibrator

Build

The Aero- Bander

SCR Slave

Photoflash

Plus many more projects, gadgets and construction idea

-enough tu

provide every experimenter

with weekend fun

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or

more.

FOOLPROOF

DESIGN!

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Your favorite

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searched and

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Each

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theory, construction tips, parts lists, diagrams,

and

photos to

make

construction

easy and

foolproof.

ACT

NOW!

Don't miss this opportunity to

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your copy

of

The Electronics Hobbyist.

Do not delay! The

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only.

FOR IMMEDIATE

HOME DELIVERY

RETURN

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COUPON

TODAY!!

THE

ELECTRONIC HOBBYIST

RTV -2

505 Park AvenuejNew

York, N.Y. /10022

Enclosed is

$1.0x1. Please send my copy

of

the

1907 Edition.

Name

Address

City

State Zip

97

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