Metra Electronics DAT Combo Instrukcja Użytkownika Pobierz pdf (Strona 63)

RADIO

-TV

EXPERIMENTER

ft

CHECK

HEATHKIT

MODEL AD -16

Solid -State

Stereo Tape Recorder

It's

not uncommon these days to run

into

people

who

automatically

assume

that any-

thing

offered

as professional equipment is

pure

junk.

And

they do

have

a point,

since

anyone

exposed

to

"professional

recorders"

at

$29.95

and "professional

amplifiers"

at

$19.95

could hardly believe otherwise.

This makes

it

all the

more

unusual to find

a

really

professional

recorder that isn't

touted

as such.

Yet the Heath AD -16 is just that -

a professional

recorder of the type you could

very well

find in

a

broadcast

or

recording

studio.

What makes

the

Heath a professional

recorder is

that it originally started

out

as

a

professional

machine -a Magnecord.

It

appears

that

Heath took

an already ex-

isting

"professional"

recorder, reduced it to

its component

parts, and

eliminated some

tricky

equalization adjustments

that could

give the

nontechnical user some

headaches.

+2

+1

cra 1

-2

30 50 100 200 500

1K 2K

Heath

then

added a

construction manual,

packed

the

unit in

a

shipping

carton,

and

offered

it

at a savings of almost

$200 below

the

wired

(

Magnecord) price. As far as

we

can determine, the

major difference be-

tween

the Heath AD

-16 and

the

original

Magnecord

lies in the elimination

of the ad-

justable frequency equalization

-the Heath

model provides only fixed equalization

for

a

basic

"flat"

response.

Sound

interesting? You bet it is. And

there are

some other surprises. Unlike some

other recorders that are jam

-packed

with

almost useless features and accessories,

the

Heath

is as

straightforward as a

sunny

day

in

June.

There are no slide-

projector

con-

trol circuits,

no automatic

echo,

no automatic

sound -on-

sound:

in fact,

no

automatic

any-

thing to

run up

the

cost. The

price

of the

Heath AD -16 represents only the transport

-RIGHT

CHANNEL

LEFT CHANNEL

34

i.p.s.

=

N -

115114

'

/,

HEATHKIT

AD-16

i

I

-

-

i

FREQUENCY

Hz (CPS)

Fig. 2.

Overall

record -play

response

of

Heath AD

-16

at

71/2

ips again

was generally

in

line with

manufacturer's

specifications.

Two channels

differ

by

factor of only

1 db.

+2

+1

J

Q

W

m

8

1

2

5K

10K 20K

Fig. 1. Record

-play

response

of

Heath AD -16

at 33/4

ips

was in keeping with

company's claim of 3 db,

30

to 10,000 Hz.

Note that

both

channels

offer

approxi-

mately

the

same

response.

- RIGHTCHANNÉL

-- LEFT CHANNEL

7 '.

p.s.

HEATHKIT

AD-16

30

50 100

200 500 '1K

FREQUENCY Hz

(CPS)

2K 5K 10K

20K

FEBRUARY

-MARCH, 1967

69

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