SBE SB2-LA - Installation; Unpacking and Initial Checks; Fixed Station Installation

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INS

TA

CEATION

Ay

UNPACKING

Remove

the

unit

from

shipping

carton

and

inspect

for

any

visible

signs

of

damage.

If

the

unit

has

been

damaged

in

shipment,

save

the

shipping

carton

and

packing

material

and

notify

the

transportation

company.

Fill

out

and

mail

the

equipment

warranty

card.

Check

all

controls

to

see

that

they

operate

freely.

Remove

the

screws

on

each

side

of

the

cabinet

and

lift

off

the

top

cover.

Remove

the

packing

material

around

the

tubes

and

check

that

tubes

are

firmly

seated

in

their

sockets.

Re-

place

the

top

cover

and

screws.

B.

FIXED

STATION

INSTALLATION

The

amplifier

may

be

located

at

any

convenient

position

within

the

length

of

the

coaxial

cable

provided

for

connection

to

the

transceiver.

Adequate

ventila-

tion

around

the

unit

is

essential;

at

least

two

inches

of

free

air

space

must

be

provided

around

the

top

and

sides.

Do

not

restrict

air

flow

under

the

ampli-

fier

by

placing

it

on

a

softly

padded

surface.

The

unit

should

never

be

stacked

with

other

equipment

unless

adequate

air

space

is

maintained

above

and

below.

Remember

that

several

hundred

watts

of

heat

are

generated

by

the

amplifier

when

operating

at

full

ratings

and

improper

ventilation

can

cause

permanent

damage

to

tubes

and

other

components.

Interconnections

to

the

SB-34

transceiver

are

shown

in

Fig.

1.

Connections

‘to

other

types

of

transceivers

are

shown

in

Fig.

2.

Information

for

connecting

the

SB2-LA

to

any

exciter

or

transceiver

not

shown

may

be

obtained

by

writing

to

the

factory.

Be

sure

to

enclose

the

schematic

diagram

of

the

unit

with

which

the

amplifier

is

to

be

used.

A

good

water-pipe

ground

(#12

wire

or

heavier)

should

be

connected

to

the

ground

lug

at

the

rear

of

the

amplifier.

Connect

the

power

plug

to

any

wall

outlet;

make

certain

that

all

switches

are

off

before

inserting

the

plug.

The

amplifier

is

intended

for

operation

with

a

50-ohm

unbalanced

(coaxial

line)

antenna.

If

other

types

of

antennas

are

to

be

used,

an

external

antenna

tuner

must

be

provided.

Occasionally,

the

trap

type

of

antennas

fail

due

to

arcing

at

the

high

power

level

generated

by

the

SB2-LA

amplifier.

If

meter

readings

are

erratic

or

intermittent

during

tune-up,

the

antenna

should

be

investigated.

In

some

cases,

arcing

due

to

dirty

insulators

can

occur.

The

cure

is

to

pro-

vide

an

antenna

installation

capable

of

withstanding

high

power

levels

and

to

clean

the

insulators

as

necessary.