Nagra E Manuale utente

INAGRA~

INSTRUCTION

MANUAL

KUDELSKI

.1033

CHESEAUX

SWITZERLAND

-----

---------------

NAGRA

PORTABLE

ANALOGUE

AUDIO

TAPE RECORDER

INSTRUCTION

MANUAL

(KSA

code

No. 20 02002 1

)

Kudelsl<i

NAGRA

TIIpEI

Reeoolll<

Manufacture<

OH-l033 Cheseau. I

SWITZE

RLA

pI'ooe (021) 731 21 21

lelel< A59 302

nBgI

telefa><

(02;1)731 41

May 1919

ition

N/lGI1/1, KUD€L8KI,

~OP

lLO

NEOPILOTTON

N/l

GI1/1

81/1TIC,

NII

GRI\FIIX

a,er

egi

ster

aoo

"",

rk•.properly

KUO

H8K1

./1

NAORA Tape

Rscor

,,"'

anu

actur

...

NAGRA I KUDELSKI certifies that this instrumenl ""as thomughjy inspected and lesled

prkJr

leaving our factory and is in

accor<la.r<:e

""ilh

1I1e

data{jiven in

II>e

accompanying lest sheel.

lIW1r8ntoe

1I1e

products ot our o""n manutactu

against

""y

defact arising

fwm

faulty

mal"\Ufacl

ure

lor a

peIiod

of ona year from the date of delivery. This gu. r. nt.... covers lhe ,epair

<:onfkmad def....,ls

or.

n....,..,ssa

ry. the repleo:amenl

the fauny parts. excluding " othar indemnilies.

All

troi!t>l

co51s~

as wall as customs duty and other possible charges,

.'"

at 1he customer's espense.

Our lIUlifanlee remains valid

lhe a

nt of eme'9!"'CYrapairs or modificalions being

made

by lha

Ho..av.... ""a

r_I'\Ia

lhe 'ighl

;,w

Dic

a the

ClIS

tomer for any damage caused by an unqualifi9d person

or a lalse manoeuvre by the op8fator.

We decline any ras

fXI

nsitmry klr

and all damages '6sultitlg,

rOCll

y or

indorecll

y, kom lhe use ot oor

prO

lJuClS.

Otller products sokl by KUDELSKI

ara

red

by \flO gUllfanlee d auses

Ill";

, raspective

manufaclurers. Wa decline any respoosi

rnl

ity lor damaqes 'esulling from the use of meee products.

'e_va

lha rig

to moddy me P'oduct and I <)I"

lila

specilications wilhout notice.

CONTROLS

TABLE OF CONTENTS

CHAPTER 1

CHAPTER 2

CHAPTER 3

PREPARATION

1,1. P

owor

supply

1.2. Thr

r>g

the rape

3. Sp

e""

and reels

OPERATION

2.1. Meter reading

2.2.

te ntiometer pos<liooing

2.3. sa

fety

eaten

2.4. Main IIJnctioo selector

2.5. Con

nec

tions

2.6. Rocordi"ll

2.7. Playback

MAINTENANCE

Page 1

Page 3

Pag

" 11

3.1. Batlef'es

3.2. Cloooirlg the magn

ic heads

3.3. Access to tho interior

the Nagre E

3.4 SimJlkllaultfinding

CHAPTER 4 CA

BRATION

Page

4.1.

tibfot

"'"

of the playback chain

4.2. CaI

Obra

tion of the record chain

CHAPTER 5

CHAPTER 6

NAGRA E-L WITH PILOT

5.1. DeSct,pU

OI1

5.2. RecOfdi

"ll

5 3 Playback

5,4, AdjuslmOOI

5.5.

Nagra

E-L bl

oc\<

diagram

ECIFICATIONS

SynopbC

doa

gram

Coo!igurat

lJ"

Page 27

e 33

"'"

NAGRA

CONTROLS

, , 3, , era9

•

rlSioo rol

le<

Supply

'ee

Era

head

Star

roller w

hstrDboOC<lp<!

ecor

ding

...

Play

bac

k Mead

Pi""t>-wheel

...

,""I

ncl>-w

hee

l cont,,,"

i 1

roller

Gal

vano<oe

le,

l;Jora

ion

$C'_

line

npu

Mic"'lj'hooe fX'Ie

mi<>meter

inpLII&playbaCk

POI

eoriomel",

Tape-<l

ir<lCl

s"otch

l<>ud>peaker . " j

le1l

luncMns

..,

1e<

HeadptJonc oulpul

Ban

<l<

Vtesl s...tch

"tz 33

no>

inp

ut 1

"""

r pack

"M..... inpul

Power

mOOo

oeIoctor

$Wi

tch

So.<

IoclO

ng screw

60><

loc

k;,,\!

SCf

".o.q.nvnetri<:al

""lplll

nM""

l>J)llone

sel0ct0r sWItch

(symmetrical

<>n

option)

Chapter 1

PREPARATION

EIMqo1e.0/1

eels

e...

lfllIt

sliding

..-:1'1

26 ill .... .

-....-

~ ~

Turn _

the

NAGRA E

....

.....-

bI'

.......,;"g

fIoang

sctew$

end

32.

f'IIOI

D-ty

IR20) 0'

liIIewl

2fJ D-

Iype

eels,

....

.......

direction,

indicated on

Ih<I

-.....

....

COI'hj)IittmBnI./I is

to place

...

bMIer

aacIl

&nd firs!, and then to insert

the

Olhers in

""-

PI_

bac

O'o'

inl0 place lacuring it

,Ill

1IC.~

211

and 32 and lurn 1ha NAGRA e

O\I

a•

.,.

S&1

mein luoctions

seJec10r

10 ' PLAYBACK" or

"RE

COR

O· and ch&ck

volIag&

~es8inO

down

'Ball

Test

lCt1

.With

new

cells.

"""""

8houId

$hc>w

18 v

ee lower _ . H

II>e

f\lHtdIe

.......

below 11 V.

II>e

l"O"

insu'h;:;erlllo

"'"

NAGRA

E-

•

••

•

~.I

pow&!'

supply

'Throw

.-:tl

10 'ExIemaI",

The

P<W3AA

Ecan

also

jlOIIo('It8d tIy

IhIo

"'TN

.........

po.-

which

....... 10

qlUI

2'S

Pow.

PecIl.

· Ban. TM1'

$oIoII;fI 22,

""'*'

......

lI"

....

t.- rigIt. n

dag&

q:Fd

8PP'O"""'-Y

"v.

,."

•

ill

poe'

....

c:hecl<

IlwI

vol!aOt

....

NAGRA

(Ball

.Test

)

any _ .

"""*

w/'IaI:

Iunc1Jon

has

'-"

seIec1

1.2. THREADING THE TAPE

1.3. SPEED AND REELS

Rele

pjr>chw

heel 7 by

P<J

ing lorward

Place Ih

lu~

l on

tI>e

1,,

and the ..mply

00 me righl hand sida. Secu re ltiom. Thread

tI>e

taj>e around tensioorollers 1

ar>d

10, and

wOnd

ffi

cient lape 00 lhe empty reel. Eng

"!l"

the

pirlctlwh

e<>1

by pushing

leve,

9 hack inle its

crig

inal

pos

lDon

:il should snap sha,ply into plac

...

Th8 recorder is

row

ready 10operal...

N6 :

ao threading the

tape

thal the oxide

lay

laces

lhe heads.

The

rac<>,d

cha,n

Ihe

NAGR

AEis

e<Wibra

ted at

hEt

laclory w

ittl

of tape, II anolher

type

lape is

used

,il will

t>e

r'IIlCass

ary

re-ca

b<a

l.. lhe machine

exp

lai

ned in Chapter

4,2.

11th..

E remains unused lor a long period

lime. laver 9should not be loft in th" rele

ased

posihon as lhe clul

might d..I..,;"ral" and

become t

hEt

llU

rco of

noi

sy r

ew<n

ding.

The NAGRA Eis a single-speed re

cord

avai

loble

either in 19 cmIs (7

112

ips) or 9.5 cmls

(3.75 ips)

~rsoi

The

cord,ng limes gilten below are an indicahon

only and cormspond to 3

5J1

long play l

ape

.9 5 cmls HI emfs

Cover Closed t27 mm 47 min. 24 m

in,

with

178mm

"34

min. 47 min_

with OGB 267 mm 2h12 m'n.

moe

min.

standa,d 50

Reels 9.5 cmls 19 emfs

Covar closed 127 mm 32

n. 16 min.

wil

h OSET 178 mm

h03

min

. 32 min.

wilh OG6 26

m 1h36 n un. 48 min

The

ter has

two

gradl.l'll<>d scales. 009 in

"GIIs

and

It\El

other in decibels. "is used

<:hed< the

supply voltage, to adjust

It\El

input seosil;"ity. to

eaect a

fOug

h ch

9Ck

of the

~cuits

and

calibfate Ihe record and playback chains.

echan

ical

zero

setti

ans

adj

ustment

sc'ew

14 Ihe

mod

ulomotar n_ le can

moved 10 the lelt

10 the right

and

thus positioned exactly at the

beg

inning of the scale.

Bal;lery cheek

LI1W9'

scale. The thick part of the

indOcata"

II>e

mini

mum

and m

imun levels of the oopply

voltage (with batl9<ies}.

Input

ltlll

Uppa. scale. The

NAGRA

E meter lunetm s

mod

"'ome

ter, i.e.

sllowstho peak value. with

fast use

tme

and intagr

atocl

fall of the recorded

"'9'18

K incOfporateS a memory device

mak

ing it

poss

ible to

,ead

the VSlU9 displayed. As is

S1(l1J1ary

with Vl!'met

ers

, graduation is only

trom

-20

dB 10 +3ee.

Low9r

scale. The NAGR/\ E is

ocau

ippad

lh its

own checking device. A

1'1008

p1ac9d

in.

KIa

the

'acotd", pormits a quick

dIec~

all circu;ls. The

\/Ol

taga rnaasuroo is shown 00 tha

JOOl9

r (sea

Chap'

'''

3.3.).

litlrallon

1>8

rec:o

r<klr

UpiXl<

sca

le. This scale is used lor c

albalioo

{soo Chapler 4)

Chapler

OPERATION

2.1. METER

REA

DING

2.2

. POTENTIOMETER POSITIONING

,'j'

':'

LIN

INP

&PLAYBACK

2.3. SAFeTY CATCH

The hW NAG

E potentiometers

l(j

and

17 are graduated d

iffe

rent ly.

Potentiometer 16

micropnone

Graduated Irom

0to 71 dB. This

ale

pH!sses the sound lev

....

in dB for a recorded

levelof 0dB. I.e a

WM11

flu

•.

Tho

thick

patt ot the scale

Hesp

nds to t

beSl

lIP"

fatiOrllli

nge oI lhe micro

ph<l

p'e

a"'ll

lilier.

If sensilillilV must be increased as tar as belwoon

ar>d

71 dB. lhe backgroond noise will nt} klll

gar

negli

ble

WIth

....

Specf lO

tape

se. How&ver.

dse,,,. tlvity must

<!&

c,eased to

betw

oon

125

sod

150

dB in order to ,eco,dat 0dB on the

m<>dulom"'

er, then eeiput signai is too strong. It

is tharelor& necessary either 10 relluce tt

si{lflal

lIov

by maans of an a

""""

, providoo the

microphone

is not saturated.

to swifch the

iopul to '" less

~v e

posoIioo

Potenti

ometer

.. ln

put

&Playba

Graduated trom - 70 to +12 dB. II a

record/ld at 0dB

"",

.La. a 320 nWblm ftux, is

played

bad<

with the potootiomrrtar at 0dB.

will

giv" anominal signal

0.94 V at unbalanced h.....

output 24. The

moduk>met

er will

ad 0dB. " the

pOlentiomal" r is

sal

10 +12 dB fh" modulomater

oll

indicllle 0 dB tor a signal rocorded III

-12

dB.

AS a safety precaution on the NAGRA E. main

lunction selector 20 is equipped with two slotted

bunons. one is red. fhe other

wt>j

te.

During transportafion. : to avoid inadvf!rtent

op<lrat

oon

ot the recorder, it is possibl"

lock the

selool

<>r

in STOP position by pressing the wM "

buttoo

and

tU<

ning

90" .

Ouri"il playback or editing :

avoid accitltmtally

~hing

it is possible

use

Ihe

buttoo in the same way.

The

main selector will

tum freely bul

WIl

impos

sob

l.. to

~ch

it to

~"'

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