Harman Kardon CITATION B Owners Manual - Page 10

SPEAKER

SELECTOR

SWITCH

Although

transistors

do

not

require

impedance

matching,

for

optimum

gain

or

sensitivity

we

have

provided

a

special

SPEAKER

SELECTOR

SWITCH

which

selects

the

correct

amount

of

feedback

for

any

impedance.

Set

this

switch

to

the

impedance

rating

of

your

speakers

to

obtain

optimum

results.

LOW

CUT

FILTER

If

for

some

reason

you

wish

to

roll

off

the

low

frequency

response

of

this

amplifier,

use

the

special

LOW

CUT

FILTER

located

on

the

front

panel.

This

will

effectively

roll

off

the

amplifier

6

db

per

octave

at

10

cycles

per

second.

POWER

ON/OFF

SWITCH

The

Citation

B

contains

a

heavy

duty

rotary

type

power

switch

located

on

the

front

panel.

It

turns

the

ampli-

fi

er

on

and

off

and

also

controls

the

AC

convenience

outlet

located

on

the

rear

chassis.

You

may

connect

the

power

cord

of

the

Citation

B

to

the

switched

AC

outlet

on

your

pre

-amplifier.

This

will

permit

turning

your

entire

system

on

and

off

without

operating

the

Citation

B

power

switch.

This

switch

may

now

be

turned

ON

at

all

times.

AC

CONVENIENCE

OUTLET

This

receptacle

is

located

on

the

rear

of

the

amplifier

chassis

and

is

controlled

by

the

on/off

power

switch.

Any

type

of

auxiliary

equipment

may

be

connected

to

this

receptacle.

IDLING

CURRENT

An

idle

adjust

meter,

meter

selector

switch

and

four

idle

adjust

controls

have

been

provided

to

correctly

adjust

the

idling

current

of

the

four

power

transistors.

Since

the

idling

current

adjustments

affect

the

optimum

perform-

ance

of

the

Citation

B

it

is

recommended

to

become

familiar

with

this

simple

adjustment.

A

difference

in

the

line

voltage

(105-130

volts

A.C.)

throughout

the

country

makes

it

ncessary

to

check

and

then

readjust

if

necessary,

the

idling

current

of

the

four

power

output

transistors.

(Idling

current

has

been

factory

adjusted

at

a

line

voltage

of

117

volts

A.C.)

The

meter

allows

you

to

visually

set

the

correct

idling

current

when

replacing

or

checking

either

pair

of

power

output

transistors.

IDLE

ADJUST

METER:

The

meter

is

used

to

separately

measure

the

idling

current

in

each

of

the

four

power

output

transistors.

METER

SELECTOR

SWITCH:

The

fi

rst

position

disconnects

the

meter

from

all

circuitry.

The

other

four

posi-

tions

select

the

power

output

transistor

which

corresponds

to

the

idle

adjustment

control

and

meter

reading.

IDLE

ADJUST

CONTROLS:

These

controls

work

in

conjunction

with

the

meter

selector

switch

and

adjust

the

idling

current

in

each

individual

power

output

transistor.

9

Harman Kardon CITATION B Owners Manual - Page 10

Speaker, Selector, Switch, Filter, Power, On/off, Convenience, Outlet, Idling, Current

Page 10 highlights