PERPETUUM EBNER PE 2020 - Page 9

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7

Steel

ball

.04”

(1

mm)

Pivot

screw

Cap

for

pivot

screw

Ball

race

for pick-up

arm

bearing

Bearing

bushing

for

pick-up

arm

Lower

tapered

bushing

Hexagon

nut

M

5.8

x

0.35

Repeat

After

unlocking

the

changer

spindle,

the record

changer

will

play

a

record

and

then

repeat

it

over

and

over

again.

The

next

record

will

only

be

dropped

after

the

changer

spindle

has

been

locked.

Antiskating

device

Since the

pick-up

arm

is

not

infinitely

long

and

since

the

pick-up

head

is

arranged

to

form

a

certain

angle

with

the

pick-up

arm

tube,

a

small

force

results

at

the

pick-up

arm

that

tries

to

impeil

the

pick-up arm

towards

the

center

of

the

record.

This

skating

force,

as

t

is

called,

has

the

effect

that

the

stylus

exerts

more

pressure

on

the inside

edge

than

on

the

outside

edge

of

the

record

groove.

The

skating

force

is

a

function

of

the

stylus

pres

sure,

the

stylus

tip

radius

and

the

frictional

con

ditions

existing

between

the

stylus

and the

record.

The

antiskating

adjustment

is

made

by

adjusting

the

stylus

force,

This

is

done

by

means

of

a

spring

in

axial

alignment

with

the

pick-up

arm.

The

anti-

skating

device

is

controlled

by

means

of

a

control

knob.

Corrections

are needed

where

different

stylus

tip

radii,

elliptical

needles

or

wet

playback

are

used.

13

23

22

25

26

Item

No.

Description

13

17

18

22

23

25

26