Revox G 36 User manual

tr@vj
!+M* ,& ds*ä &h. *d
W W,*s

nilox
INSTRUCTION MANUAL- MODEL G 36
With your Stereo-Taperecorder REVOX G 36 you get an instrument of the
highest precision for both monaural. and stereophonic recording.
This recorder has some unique features. In order to utilize all the possl-
billties it offers , you will need an exact knowledge of these operating
instructions . We therefore recommend studying this instruction manual
bef ore using your recorder This will avoid failure and help protect your
machine from accidental damage.
We wish you much pleasure and every success with your new REVOX G 36.

PACKING MATERIAL Manufactured by:
Save the complete packinq for possible re-shipment. WILLI STUDER
rhe REVoX G36 raperecorder is a heavy plece of yrltti'#ä"":J:r"$tj:rt:i: äT:::i"*
equipment and would be seriously demaged if for-
warded in an improvised packing. WILLI STUDER GmbH
TBZg Löffi ng e n, Germany
WARRANTY
Your REVOX Taperecorder is warranted to be free
from defects in material and workmanshlp for a mini-
mum period of six months. Please request warranty
registratlon card from your dealer and send com-
pleted card to the REVOX representative in the coun-
try of purchase.
World-Wide distrlbutlon through :
REVOX-International, a Division of EIÄ AG
8105 Regensdorf-Zurich, Switzerland
U.S. and Canadian distribution through:
ELPA Marketing Industries, Inc.
New Hyde Park, N.Y.

Gontents
1. PositionofControls. .'...'.. 4
2. Stereo - Mono -- Two Track - Four Track 6
3 . Preparing the Recorder for Use. I
4. Preparation for Recording .... 16
5. Recording ',.......'20
6. Play-back ....'.,,,2I
7 , Use as a Stereo Recorder . .. . 23
8. Special Features: Re-Recording, Multiplay and Echo Effects. ' 28
9. Use as anAmplifier ......... 30
10. Maintenance .. '..... 31
I1. TechnicalSpecifications ...'32

M
19 201 122 21
1. Position of Controls
2
6
7
8
I
ro
13 14

I Supply reel
2 Tape guide pln
3 Take-up reel
4 Position indicator (3 digit counter)
5 Counter re-set
6 Push button: Fast rewind
7 Push button: Fast forward
B Push button: PIay
9 Push button: Stop
l0 Push button: Recording
11 Black button depressed: Tape speed 3 3/4 ips
I2 Red button depressed: Tape speed 7 t/2 ips
Both buttons in mid-position: Capstan motor switched off
13 Black button depressed: Recording on Channel I
( lefthand channel, upper tape section )
14 Red button depressed: Recording on Channel I1
( righthand channel, lower tape section )
15 Power switch OFF - ON (this switch is mounted on bass control)
16 Tone control.: Bass will increase if turned clockwise
17 Channel selection switch for internal monitor amplifrer and for
high impedance outputs 43 and 44
18 Monitor amplifier volume control
t9 Input source selection swltch I ( on stereo: for lefthand channel )
R Tuner D Aux. input M Microphone
20 Input level control ( recording ) for channel I
2I Input source selection switch II ( on stereo: for righthand channel )
22 Input level control ( recording ) for channel II
23 VU - Meter channel I
24 VU - Meter channel II
25 Tape tension switch

2. Stereo-Mono TwoTrack
The REVOX G 36 is a stereo taperecorder, but of course monaural recordings are possible as weII. In the latter case tape ca-
pacity is doubled.
The diagrams wiII allow for a better understanding of the operating instructions, and at the same time explain the difference
between the two track and four track models.
Track I
Track 2
Stereo Channel I
--_)
Stereo Channel II ----'-----)
Mono I ---------+>
{- z ouol^I
Mono I
-----+'
Mono 2 ------------->
On the two track taperecorder the tape is divided into two equal
tracks .
If the REVOX G 36 is used as a stereo recorder, these two tracks
correspond to the two stereo channels:
track I above, Iefthand channel
track 2 below, rlghthand channel
For mono operätion there are two different possibilities:
a) OnIy channel I is used. Turning the tape by lnterchanging the
take-up reel and the supply reel permits recording on track 2,
.in the opposite d.irection.
This method corresponds to the international standard'
b) By choosing alternately the use of channel I or channel II ,
you can make two mono recordings in the same direction.

FourTrack
Trdck 3
Track 2
stereo Channel I -----------J 1I TauueqS oaletrs
Stereo Channel II --------__-*
1- J IauuPqC oarols
frdcklChdnneil-------------) <-- II lauueqc t äcerJ
'Iräck J Channel II {-IlauuprlSzlcelJ
Track I Channel III lauueqc t äcerJ
T.äck 2 Chdnne.l II ------------->
a_tTauueqStärcrü
Like the two track version, the four track machine possesses two
channels. Here, however the tape is divided into four tracks. The
already mentioned interchanging of the reels permits double uti-
lization of the tape in aII operating modes.
As usual stereo is recorded on
reels, the other two tracks maytwo tracks. After interchanging the also be used for stereo recording.
Corresponding to the international standards, monaural recordings
on four track recorders are done flrst on track I using channel I.
Then the reels are reversed and track 2 is recorded, stili using
channel I. Interchange the reels agaln and record track 3 and 4
using channel II.
As in the two track recorder, monaural recordings may also be
made by alternately using both channels in the same tape traveJ.
direction.
Thefourtrackrecorderspossesstheadvantage,as'againstthetwotrackrecorders,ofamoreeconomj.caluseoftapes. More-
over, prerecorded tapes may be played,
On the other hand, some reduction in the tonal quality must be accepted, due to the narrower track widths of the four tracks
as opposed to the two track models, This applies, of course, to all makes of taperecorders,

a
o
OF-
oCo
(o ö
a
-@
JC.,
3. Preparing the Recorder for Use

After removing the rear cover, the power cabl.e and the sockets become accesslble.
31 Microphone input channel I I
32 Microphone tno", "rr""""i it ] unbalanced
33 Aux. (Diode) input channel I I
34 Aux. (Diode) input channel II I untldldnced
35 Tuner (Radio) input channel I I
36 Tuner (Radio) irp"i "nr"""i iI ) unbalanced
37 Potentiometer for the setting of the sensitivity of input 33
38 Potentiometer for the setting of the sensitivity of input 34
39 Socket for remote control switch, which wili also perform the function of a pause-
control. If no remote control unit is used, the dummy plug, which is provided,
must be inserted in this socket.
40 Voltage selection switch with fuse holder. Voltage may be selected by turning the
slot by means of a coin,
4I Fuse holder
42 Socket for an external Bf2 (5f2) loudspeaker. The internal loudspeaker is switched
off if the plug is inserted completely. Insert the plug half way only if both speakers
are required.
43 High impedance output channel I I
44 Hish impedan.. "";;;; "i.""""i it ,} for stereo amplifier
45 High impedance output channel I 1 for individual track reproduction or for auto-
46 High impedance output channel II t matlc slide projection with the REVOX -
"Slide-O-Matic"

Preparing the Recorder for Use
41
The powerline plug is inserted in socket 42 during transport. Before
connecting to the mains, check the correct settlng of the voltage switch
(set to 22OY by the factory).
In order to seJ.ect another voltage, press fuse holder 41 by means of a
coin and turn to the correct posltion. If turned clockwise to the end, the
fuse may be changed. Check if the correct fuse is in the fuseholder.
Use a miniature fuse 5 x 20mm (slow-blow) : 0.6 A for 220/240V
1.2 A for 1I0-145 V
ATTENTION
The recorder may be used only for 50 cps AC current. For 60 cps AC
use a converslon klt, avallable from the manufacturer.
UsA
/ 60 cps
In order to change the fuse, press fuse holder 41
turn clockwise to the end.
Use a miniature fuse (slow-blow): Type 3 AG
by means of a coin and
1.2 A for 110 - 145 V
ATTENTlON
The recorder may be used only for 60cps, I17 V AC current.
10

45
Tape speed
Pushingbuttons I1 or 12 selectstape speed 3 3/4ips or 7 I/2
ips. The higher speed gives highest audio quality ; the lower
speed doubles playing time.
WARNING
Push buttons ]i and 12 for tape speed selectj.on must not be
operated with power switch 15 in the ON position.
The power switch is operated by dial 15 which must be turned
clockwise for turning the recorder ON.
I1

Preparing the Recorder for Use
..,.,.,:.;'F*i
,,.ta,'':*,*l
M
t-_
((D)
@,
'.,
W
(-----.
$,
^1
$,
::i]:r.:,:
Threading the tape
Put full reel on the left, empty reel on the right turntable. See
that the inner slots of the spool fit well onto the keys of the
axle. Lock the spool by a twist of the upper center axle'
Maximum spool size is I0 Y2".
The tape is now threaded and attached to the empty spool as
indicated ln the picture on the righthand side, It is very im-
portant that the tape is threaded behind the tape guide plns 2.
The Tape Guide Pin on the right hand side contains a photo-
electric device for automatic shut-off at the end of tape. This
photosensltive end-of-tape-switch allows to stop the tape at
any desired point. To achive this, simply wipe away the mag-
netic emulsion over a length of about 3,/B inch with a suitable
solvent. (acetone)
The counter should be reset to
by depressing button 5, thus
wanted spot on the tape.
000 at the beginning of a tape
facilitating the location of a
t2

-*,
rlffi r "s'
*,r sL
i..it .:.,.-. . ,
tl,'i' '',tffi M
rffi
W
ro

Preparing the Recorder for Use
-'
Interchanglng the reels
On all monaural recordings, and on stereo recording on the
four track model, only a part of the tape is used (see pag-
es 6 and 7 ). In order to use the other part, the reels sim-
ply have to be interchanged after the tape has been play-
ed to the end.
If a small spool is used up to approximately 7 lnches. tape
tension switch 25 has to be operated. The switch lever
comes out of the head cover, thus preventing the use of a
big spool by 9rror. Spools of the same size should be used
on both sides.
74

Manipulation
Tape transport ls controlled by the push button assembly 6-10.
The push buttons will select the following operating conditions :
6 Fast rewlnd
7 Fast forward
B PIay
9 Stop
1.0 Record. The tape does not move, but the recording Ievel is
already indicated on the Vu-Meters ( stand-by recording ).
8+10 Recording
push buttons 8 and 10 are blocked with the push buttons 6 or 7 down. Therefore push button Stop ( 9 ) has to be pushed first.
On the other hand, switching from fast forward to fast rewind and vice versa ls posslble.
Anoptical tape-end shut-offswitchissituatedundertheheadcoverattherighthandside.Ifthetapehasrunout,orifthe
tape breaks, the recorder stops. A metallic foil attached tothe tape at the end of a spool is not necessary.
Remote Control
After having removed the dummy plug, the REVOX Remote Control
maybe plugged into socket 39. A preselected function ( play
or record ) may be interrupted by means of the remote controi
switch, thus also performing the function of a "pause control".
Starting the machine in the record mode by means of the remote
control wiII avoid any switching clicks ontape.
ATTENTION: If the remote control is removed, the dummy plug has to be inserted again. If not, the recorder will not start.

4. Preparation for Recording
As described on pages 6 and 7, the tape width
two or four tracks.
Channel selection switch 13,/14 effects choice
is divided into
of the desired
track.
If push button i3 (biack) is depressed, inputs are connect-
ed wlth channel I (two track model: track l,.four track model:
track I and, after having interchanged the reels. track 2 ).
If the push button 14 ( red ) is depressed, inputs are connected
with channel II ( two track model: track 2: four track model :
track 3 and, after having interchanged the reels, track 4 ).
Two channel recording is obtained if both buttons are pressed to
mid-position ( stereo ).
Monaural recordings accordlng to international standards
In the case of two track recorders, button l3 always remains depressed, The
ed the reels. second track is recorded after having interchang-
Inthe case offourtrackrecorders, start in the same way. Then interchange reels agaln and press button 14. thus recording
track 3; and, after having interchanged the reels again, track 4.
Stereophonic recordings according to international standards
Two track model: Both push buttons in mld-position. Both channels are then used for stereo.
Four track model: Bothpush buttons in mid-posltion. Tracks I and 3 arerecorded. Tracks 2 and 4 maybe recorded after
changing reels.
tr,?
I6

38 Selection of audio sources
Crystal or moving coil (dynamic) microphones may be plugged
into sockets 3 I and 32 . An additional line transformer has to
be used if the lmpedance of the microphone is 50Qor 2001f.
Your local dealer wl]1 be able to recommend a good quality
microphone.
Sockets 33 and 34 may be connected by means of an audio
cable with the diode output of a radio. Other audio sources
c.an be used as well. By means of potentiometers 37 and 38
the sensitivityof the Diode inputs ( sockets 33 and 34" disc
19 and 2l on D ) should be adjusted so that,with record level
controls (20 and 221 in lhe 12 o'clock position (pos. 5 on
calibrated dial ), a deflection of 0 VU ( 100% ) is reached on
the respective VU-Meter ( 23 and 24, see page 18 ) durlng
loud passages of music.
Socket 35 and 36 are for audio sources with an output voltage
of more than 50 mV ( turntables with crystal pick-ups or low
impedance loudspeaker outputs of radios ).
Turntables wlth magnetic pick-ups need a separate equaliza-
tlon amplifier, as incorporated in the REVOX stereo amplifier
model 40, for example.
A1I these inputs are connected with the recording amplifiers
bymeans of the dial switches 19 and 21. The lefthand dial
corresponds to channel I ( sockets 31, 33 and 35 ),'the right-
hand one to channel II ( sockets 32, 34 and 36 ).
The letters R, D and M correspond to the designations Tuner, Aux. and Microphone. The designatlons I-II and II-I mean
internal channel-to-channel transfer ( see: B. Speclal Features : Re-Recording, Multiplay and Echo Effects.' page 28 ) .
37
I7

Preparation for Recording
Record leveI indication
The record leve1 may be controlled before the tape
moves ( neither buttons B and 10 depressed ). For
this the dial switches 19 and 21 must be set to se-
Iect the input to which an audio source is connected.
The record level controls 20 and 22 are then to be ad-
justed for proper level indication on the VU-Meters.
t9 20 222l
f'*t
23 24 t3 t4
VU-Meters
If both buttons 13 and 14 are in the mid-position I+II, selector switch 19 and control 20 are connected with channel I ( on
stereo: the iefthand channel ) . The recording level of this channel is indicated on VU-Meter 23 , Selector switch 2 1 and con-
lrol. 22 are connected with channel II ( on stereo: the righthand channel ) with level indication on VU-Meter 24. The scales
of both VU-Meters are illuminated as a check on the recording.
If one of the buttons 13 or 14 is depressed all the way ( this means : either channel I or channel II in operation ), both selec-
tion switches and both controls operate together on one channel. Two audio sources may be mixed. Only the scale of the
VU-Meter for the channel in use wiII be illuminated.
Record level controls
Unlike most amateur taperecorders, the REVOX G 36 is fitted with VU-Meters calibrated according to ASA standards, as in
professional recorders .
These meters require special attention while recording:
Normally control 20 or 22 should be set so that the pointer does not reach higher than 0 VU ( 100% ) " i.e. not in the red field,
withprolongedhighvolume (e.9. orqanordouble-bass), however, thepointermayreach themiddleofthered fieldon the
VU-Meter without danger of overloading the tape.
L8

Mixing
The mixing procedure may be illustrated in the following example:
You are about to record from a phonograph record and you wish to introduce it orally, to mentj.on the title and to say something
about the musicians. You are recording on channel I, so button 13 is depressed. A recordplayer is attached to socket 35, and
a microphone to socket 32. Whenthe tape is in motion for recording, buttons I and l0 are depressed, control 22 is opened,
and the Ievel of the microphone is monitored on VU-Meter 23. You are talking into the microphone, and as you talk you turn
therecordon. Nowbymeansofcontrol 20you may fade ln the record.
After having finished the announcement and having turned control 22 back to zero position, you turn up the full volume of the
recordplayer with control 20, always monitoring on the VU-Meter,
ATTENTION: A record level control (e.g.20,22) whic]n is not ln use should be turned to zero.
*e-$&ru$H$:g- g
t9