Dynacord Echocord Super 76 User manual
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On
Bedienungsanleitung
-
Operating
manual
-
Mode
d’emploi
ECHOCORD
SUPER
76
Table
of
Contents
ECHOCORD
SUPER
76
in
different
views
Operating
controls
Operating
instructions
Checking
the
mains
voltage
Fuses
Connections
to
mains
supply
Input
and
output
connectors
Putting
info
operation
Adjustment
and
operation
Jombination
of
the
ECHOCORD
SUPER
76
with
new
DYNAGORD
aenpitiars
Combination
of
the
ECHOCORD
SUPER
76
with
earlier
DYNACORD
amplifiers
Service
and
Maintenance
Technical
data
:
z
H
;
:
i
4
Eo
Beg
as
vee
ee
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sf
i]
~~.
Operating
Controls
and
Components
{1)
Universal
input
I
and
Il
(2)
Bass
control
for
echo/reverberation
{3)
Treble
contol
for
echo/reverberation
(4)
Slide
permitting
any
setting
of
echo
and/or
reverberation
(5)
Modulation
indicator
(6)
Universal
input
Ill
and
IV
(7}
Volume
control
for
input
|
and
1
(8)
Echo/reverberation
volume
for
input
|
and
i
(9)
Bass
control
for
input
|
and
U
(10)
Treble
controt
for
input
|
and
Il
(11)
Mixing
control
for
the
two
reverberation
systems
(12)
Switch
echo/reverberation
-
sound
control
on/off”
(linear)
(13)
Change-over
switch-for
tape
speeds
(14)
Motor
and
echo/
reverberation
,On”
and
,,Off"
(15)
Unit
,On”
~
Off”
(16)
Reverberation
duration
and/or
echo
repetitions
(17)
Bass
control
for
inputs
IH
and
1V
(18)
Treble
control
for
inputs
Il
and
IV
(19)
Volume
control
for
inputs
ffl
and
IV
(20)
Echo/reverberation
volume
for
input
il
and
IV
(21}
Line
voltage
selector
(22)
Fastener
for
spare
fuse
bag
(23)
,Output”
socket
(24)
Coupling
jack
for
Dynacord
amplifier
(25)
Level
control
for
echo/reverberation
(26)
Socket
,,.Remote
control
switch”
for
echo/reverberation
(27)
Fuse
for
motor
(28)
Fuse
for
the
transistor
current
supply
(29)
Mains
supply
socket
(30)
Fuse
for
the
mains
voltage
(31)
Torsional
reverberation
system
(32)
Erase
head
(33)
Movement
roller
(rubber
roller)
(34)
Playback
head
with
shield
(35)
Mounting
panel
for
drive
mechanism
(36)
Support
for
slide
(37)
Tape-quiding
shaft
for
slide
(38)
Slide
(39)
Recording
head
(40)
Adjusting
screws
(41)
Small
slide
bar
(42)
Tape-guiding
shaft
(43)
Large
slide
bar
(44)
Movement
roller
(45)
Tension
lever
446)
Tension
roller
447)
Driving
spindle
with
motor
(48)
Pressure
roller
(49)
Upper
pressure
lever
(50)
Tension
spring
for
pressure
lever
(51)
Tension
spring
for
tension
lever
A)
3)
C)
Operating
instructions
Checking
the
mains
voltage:
Before
turning
on
the
unit,
check
if
the
voltage
selector
(21)
at
the
rear
panel
of
the
unit
is
set
to
the
proper
line
voltage.
The
unit
is
suitable
for
connection
to
a.
c.
mains
only.
Setting
to
another
voltage
is
accomplished
by
means
of
a
screw
driver
or
a
suitable
coin
which
should
be
turned
until
the
mark
points
to
the
respective
mains
voltage.
The
unit
is
set
for
220
volts
in
the
factory.
The
mains
fuse
(30)
may
be
replaced
by
turning
out
the
cap.
Repeated
blowing
of
properly
sized
and
rated
fuses
indicates
a
defect
in
the
unit.
Underfusing
may
cause
blowing
of
the
fuses
even
though
the
unit
is
not
defective.
Mended
fuses
or
overfusing
may
cause
severe
damage
to
the
unit
which
is
not
covered
by
warranty.
The
electrical
value
is
impressed
on
one
of
the
two
fuse
caps
at
the
side.
Fuses:
The
size
of
the
mains
fuse
is:
110
to
130
volts
=
800
mA,
slow
220
to
240
volts
=
400
mA,
slow
motor
fuse:
1.6
amps.
slow
appliance
fuse:
400
mA
slow
Dimensions
of
all
fuses
=
5
X
20
mm
Attention!
Spare
fuses
are
in
a
plastic
bag
at
the
rear
wall
of
the
unit
(22),
Connections
to
mains
supply:
The
earting-contact-type
line
cord
supplied
with
the
,ECHOCORD-SUPER
76”
should
be
plugged
into
the
mains
supply
socket
(29).
The
specified
protection
against
electric
shock
hazard
as
well
as
the
best
possible
freedom
from
humming
is
secured
only
if
this
line
cord
is
plugged
into
a
properly
installed
earthing-contact-type
socket.
Depending
on
the
local
mains
conditions,
it
may
become
necessary
to
change
the
polarity
of
the
power
plug
in
order
to
secure
maximum
freedom
from
humming.
In
order
to
eliminate
so-called
hum
pickups,
care
should
be
taken
that
the,
ECHO-
CORD-SUPER
76”
and
the
amplifier
used
are
plugged
into
two
sockets
not
placed
too
far
from
each
other.
The
use
of
multiple
sockets
is
an
advantage
in
this
respect.
D)
Input
and
output
connectors
Inputs
Four
universal
input
jacks
located
on
the
illuminated
control
panel
permit
the
alter-
native
connection
of
dynamic
microphones
or
electronic
instruments
(guitar,
etc.).
A
special
arrangement
of
the
input
stages
permits
the
direct
connection
of
low-
impedance
microphones
without
requiring
an
additional
microphone
transformer
(cable
transformer).
It
is,
however,
very
important
in
this
connection
that
the
micro-
phone
connection
plug
is
symmetrically
wired;
one
insulated
wire
must
be
soldered
to
contact
1
and
one
to
contact
3
and
the
shielding
must
be
connected
to
contact
2.
The
plug
of
an
electronic
instrument
(guitar,
etc.)
should
be
connected
to
contact
1
=
insulated
wire
and
to
contact
2
=
shielding
according
to
the
respective
standard.
Ali
input
cables
must
be
shielded.
In
all
jacks
the
shielding
must
be
connected
to
pin
2.
Inputs
I
and
Il
(1):
Universal
for
microphon
or
instrument
Wiring
of
jack:
Pins
1
and
3
for
dynamic
microphones
150-500
ohms
Pins
1
and
2
__
for
instruments
(guitar,
etc.)
Inputs
Hl
and
IV
(6)
as
under
Inputs
|
and
I
Inputs
|
and
fl
(1)
as
well
as
input
Ill
and
IV
(6)
are
connected
in
parallel.
For
this
reason
two
microphones
of
the
same
electrical
value
can
be
connected
to
the
two
inputs
|
and
fl
(1)
and
two
guitars
of
the
same
electrical
value
to
the
inputs
Hl
and
IV
(6).
It
is,
of
course,
also
possible
to
connect
four
microphones
or
four
guitars
of
the
same
electrical
value.
It
is,
however,
impossible
to
connect
at
the
same
time
a
microphone
and
a
guitar
to
the
inputs
|
and
Il
(1)
and
Il
and
IV
(6)
respectively,
because
of
the
different
impedances
of
microphone
and
guitar.
Red
coupling
jack
(24):
cennecting
jack
to
DYNACORD
amplifier
with
cable
VK
1.5
(diode
cable)
Wiring
of
jack:
Pint
+
2
=
recording
line
Pin
3
+
2
=
playback
line
Output
(23):
for
any
amplifier
Wiring
of
jack:
Pin
1
+2
=
1
V
for
amplifier
inputs
with
low
sensitivity
Pin
3
+2
=
100
mV
for
sensitive
amplifier
inputs
E)
Remote
control
jack
(26):
This
jack
serves
for
connecting
a
remote
control
switch
to
switch
on
or
off
echo
and/or
reverberation
from
a
distance.
Puiting
into
operation
Attention:
Every
time
the
unit
is
put
into
operation
and
also
during
operation,
care
should
be
taken
that
the
unit
is
not
placed
on
another
heat-generating
device.
The
heat
developed
might
damage
the
unit.
Before
putting
the
unit
into
operation
for
the
first
time,
open
cover
by
means
of
a
screw
driver;
for
this
purpose
push
back
the
three
inner
locking
devices
to
as
far
as
the
middle
of
the
cover
enabling
the
cover
to
be
lifted
off.
For
closing
reserve
the
above
procedure.
Before
the
unit
leaves
our
plant,
the
pressure
roller
is
locked
by
means
of
a
stopper
for
protection
in
transit
Consisting
of
a
piece
of
notched
flat
material.
The
stopper
is
located
between
the
upper
tension
lever
(49)
and
the
small
cylindrical
pull
spring.
See
indication
strip
on
the
unit.
Remove
this
stopper
by
pressing
slightly
against
the
tension
lever.
Then
check
if
the
magnetic
tape
loop
is
inserted
properly
as
shown
in
the
dia-
gram
inside
the
unit.
Remember
that
the
tape
should
be
changed
only
while
the
unit
is
switched
off.
To
change
the
tape,
lift
the
shield
off
the
playback
head
(34).
Note
that
the
shield
should
be
replaced
properly
after
threading
the
tape
to
prevent
humming.
While
threading
the
tape,
pull
back
the
small
holding
spring
of
the
tape-guide
shaft
(42)
slightly
and
place
the
tape
in
the
provided
groove.
Moreover,
note
that
the
glossy
side
of
the
tape
should
be
located
to
the
outside,
i.
e.
the
dull
side
should
rest
against
the
heads.
The
endless
tape
is
made
of
a
highly
durable
and
abraison-resistant
material.
These
tapes
are
available
from
our
distributors
under
the
designation
DES
299.
To
turn
on
the
unit,
depress
the
red
button
(15)
(button
jumps
out,
the
operating
panel
is
illuminated).
The
tape
driving
motor
is
turned
on
by
depressing
the
grey
button
(14)
(button
jumps
out);
the
endless
loop
is
tightened
at
the
same
time.
When
the
button
is
depressed
again,
the
motor
is
switched
off
and
the
tape
is
slackened.
As
a
pre-amplifier
without
echo
and
reverberation
effect,
the
umit
remains
in
operating
condition
in
this
state.
To
switch
off
the
unit,
depress
the
red
button
once
more
(button
stays
in).
Attention,
very
important!
The
unit
should
not
be
disconnected
by
unplugging
the
mains
plug.
The
tape
is
moved
by
the
rubber
pressure
roller
(48)
which
is
raised
in
,Off”
position.
By
pulling
the
mains
plug,
the
roller
remains
on
the
motor
axle
and
would
therefore
be
deformed
with
resultant
running
out
of
true.
Adjustment
and
operation:
1,
to
The
desired
volume
for
,,Original”
is
adjusted
by
means
of
the
controls
(7)
and
(19).
If
only
one
double
input
is
required,
the
volume
control
not
used
should
be
turned
back
to
zero
(left-hand
stop).
Adjust
treble
controls
(10)
+
(18)
and
bass
controls
(9)
+
(17)
for
,Original”
according
to
the
desired
sound
impression.
In
case
that
a
linear
frequency
response
of
the
echo/reverberation,
is
desired,
button
(12)
must
be
depressed;
if
this
button
is
released,
the
treble
control
(3)
and
the
bass
control
(2)
for
echo/reverberation
are
in
operation.
Bass
control
(2)
and
treble
control
(3)
should
be
adjusted
accordingly
for
rever-
beration
and
echo,
respectively.
Turn
up
echo/reverberation
volume
controls
(8)
and
(20)
as
much
as
required,
at
the
same
time
watching
the
indication
instrument
(5).
The
best
reverberation
reproduction
is
obtained
when
the
pointer
moves
at
the
point
where
the
black
and
the
red
fields
meet.
Attention!
if
the
pointer
moves
steadily
in
the
red
field,
overshooting
and
thus
distortion
of
reverberation
will
result.
For
shorter
echos
press
button
(13)
,,Presto”
(button
stays
in),
for
longer
echos
,Adagio”
press
button
once
more
(button
jumps
out).
The
distance
of
the
recording
head
to
the
playback
head
can
be
changed
conti-
nuously
by
means
of
slide
(4).
When
the
slide
is
at
the
right-hand
stop,
this
being
the
maximum
distance
of
the
recording
head
to
the
playback
head,
the
longest
echo
is
produced.
When
the
slide
is
moved
farther
to
the
left,
a
shorter
echo
is
obtained.
As
the
slide
approaches
the
left-hand
stop,
the
echo
changes
into
a
»oHATTER
REVERBERATION”
and
turns
into
the
shortest
reverberation
when
reaching
the
left-hand
stop.
|
Setting
for
optimum
shatterfree
reverberation:
a}
Button
(13)
in
Presto”
position;
mixing
control
(11)
in
mid-position;
move
slide
(4)
to
between
3
and
5;
set
reverberation
duration
(16)
to
between
3
and
7
(note
para.
10).
b)
Button
(13)
in
,
Adagio”
position;
mixing
control
(11)
in
mid-position;
move
slide
(4)
to
between
1
and
3;
set
reverberation
duration
(16)
to
between
3
and
7
(note
point
10)
10.
Turn
reverberation
duration
(16)
to
the
right
until
the
desired
lenght
of
rever-
beration
and/or
the
desired
number
of
echos
is
obtained.
Attention!
Turning
up
this
control
too
much
will
result
in
whistling
and
howling
of
the
unit.
Besides
the
slide,
the
,,reverberation
duration”
control
(16)
is
the
most
impor-
tant
adjusting
member
of
the
unit.
With
this
control,
the
reverberation
can
be
prolonged
by
a
multiple
up
to
the
so-called
Cathedral
reverberation”.
Also
the
effect
of
the
shatter
reverberation
can
be
considerably
increased;
moreover,
20
and
more
,echo”
repetitions
may
be
obtained.
Any
desired
effect
can
be
produced
by
the
respective
position
of
the
slide
(4),
the
reverberation
duration
control
(16),
and
the
reuerberation
tone
controls
(2).
+
(3).
11.
The
mixing
control
for
magnetic
soumd
and
torsional
reverberation
(11)
produces
especially
impressive
effects:
Control
in
mid-position
=
torsional
and
magnetic
tape
reverberation
have
equal
volume
Control
at
the
left-hand
stop
=
torsional
vibration
only
Control
at
the
right-hand
stop
=
magnetic
tape
reverberation
only
Control
half-left
=
a
greater
amount
of
torsional
and
a
smaller
amount
of
magnetic
tape
reverberation
Control
half-right
=
a
greater
amount
of
magnetic
tape
and
a
smaller
amount
of
torstonal
reverberation.
The
individual
setting
of
this
control
is,
of
course,
left
to
you;
it
should
correspond
to
the
desired
sound.
Level
for
echo/reverberation
(25):
When
using
older
DYNACORD
amplifiers
with
echo/reverberation
switches,
this
control
serves
as
reverberation
volume
control
for
the
microphones
and/or
instru-
ments
connected
to
the
amplifier
(turning
control
to
the
left
decreases,
turning
to
the
right
increases
reverberation).
When
using
new
DYNACORD
amplifiers
which
have
their
own
reverberation
volume
controls,
the
level
control
(25)
should
be
fully
turned
up
(right-hand
stop)
and
left
in
this
positton.
G)
Combination
of
the
,ECHOCORD-SUPER
76”
with
new
DYNACORD
amplifiers
The
combination
of
the
,ECHOCORD-SUPER
76"
with
the
new
DYNACORD
ampli-
fiers
EMINENT
|,
1,
BASSKING
T,
HiFi-FAVORIT
|,
!l,
GIGANT,
MV
160,
etc.,
is
effected
by
means
of
a
connecting
cable
VK
0.5
or
1.5
between
the
red
coupling
jack
(24)
of
the
EC-SUPER
76
and
the
respective
red
jack
of
the
above-mentioned
units.
The
reverberation
level
control
(25)
of
the
EC-SUPER
should
be
fully
turned
up
(to
the
right).
When
all
adjustments
have
been
made
on
the
EC-SUPER
76
and
on
the
following
amplifier
in
accordance
with
the
respective
operating
instructions,
the
desired
echo/reverberation
proportion
can
be
adjusted
continuously
by
means
of
the
individual
reverberation
controls
of
the
amplifier.
H)
Combination
of
the
,ECHOCORD-SUPER
76”
with
earlier
DYNACORD
amplifiers
When
the
,ECHOCORD-SUPER"
is
combined
with
the
DYNACORD
amplifiers
EMINENT,
KING,
REX,
etc.
there
is
the
possibility
of
providing
the
microphones
and
instruments
which
are
connected
to
the
amplifier,
with
reverberation
or
echo
effect.
After
having
made
all
settings
on
the
ECHOCORD-SUPER
76
and
after
having
set
the
volume
control,
tone
control,
and
totalizing
volume
control
on
the
amplifier
to
the
desired
room
volume,
switch
on
the
reverberation
switches
on
the
amplifier.
The
volume
for
reverberation
and/or
echo
is
set
on
the
,Reverberation
level
control”
(25)
by
means
of
a
small
screw
driver.
Turning
clockwise
increases,
turning
counterclockwise
decreases
echo/reverberation.
Normally
this
control
has
to
be
set
only
once
and
can
then
remain
in
this
position.
If
a
disturbing
hum
should
occur
when
connecting
the
units,
a
defective
or
impro-
perly
connected-
shielded
cable
ts
often
the
cause.
Moreover,
such
hum
may
also
be
caused
by
a
larger
power
transformer
of
a
nearby
amplifier.
In
this
case
place
the
units
at
such
a
distance
from
each
other
(if
necessary
turn
slightly)
that
a
mutual
interference
is
eliminated.
Examples
for
interconnecting
the
ECHOCORD-SUPER
76
new
DYNACORD
amplifiers
Eminent
(/il,
Basskeng
1,
Gigunt
etc.
output
socket
fa
other
amplifiers
@
1)
Service
and
Maintenance:
Make
sure
that
adequate
air
circulation
is
provided
for
cooling
the
ECHOCORD-
SUPER
76.
For
this
reason
the
unit
should
be
placed
not
too
close
to
heat-developing
equipment.
The
service
life
of
the
endless
magnetic
tape
DES
299
is
limited
by
the
mechanical
abraison
and
depends
largely
on
the
cleanness
of
the
tape-guiding
pane!
with
the
movement
rollers,
tape-guiding
shafts,
magnetic
heads,
etc.
For
the
sake
of
longer
life
of
the
magnetic
tape,
it
is
recommended
to
depress
button
(14)
when
operating
without
echo
or
reverberation.
In
this
position
of
the
button,
the
driving
motor
is
not
running,
while
all
other
circuits
operate.
Every
time
the
tape
loop
is
replaced,
it
is
urgently
recommended
to
clean
the
tape-
guiding
panel,
magnetic
heads,
tape-guiding
shafts,
and
movement.
rollers.
Light
stripes
on
the
tape
loop
indicate
that
there
are
point-shaped
dirt
deposits
on
the
magnetic
head
faces
which
must
be
removed
under
any
circumstances.
Do
not
use
metallic
objects
for
cleaning
the
heads,
but
clean
with
alcohol-soaked
linen
cloth.
Lubrication
and/or
oiling
of
the
movement,
tension,
and
pressure
rollers
is
not
ne-
cessary
as
all
bearings
are
of
the
self-lubricating
type.
Two
adjusting
screws
(40)
are
provided
to
ensure
that
the
slide
moves
easily.
If
the
slide
is
too
stiff,
slightly
slacken
the
screws
(turn
counterclockwise).
If
it
should
move
too
readily,
tighten
the
screws
(turn
clockwise).
DYNACORD
units
are
quality
products
and
belong
to
the
world's
top
class.
The
component
parts
we
use
are
first-class
products
of
leading
manufacturers.
Extensive
and
strict
inspection
of
the
goods
received
ensures
perfect
and
consistent
quality
of
the
various
components.
If
it
should
happen
nevertheless
that
a
component
part
(resistor,
capacitor
...)
becomes
defective
causing
the
unit
to
break
down,
please
apply
to
the
nearest
DYNACORD
service
shop:
A
list
of
our
service
shops
is
given
on
the
certificate
of
warranty.
Remember
that
the
unit
inclusive
of
the
control
panel
must
under
no
circumstances
be
cleaned
with
agents
dissolving
plastics
(nitro
dilutions,
etc.).
We
reccommend
to
use
a
rag
moistened
with
soapy
water
for
cleaning.
Subsequent
treatment
of
the
control
panel
with
an
antistatic
agent,
such
as
Plexiklar,
Antistatic
spray
100,etc.,
is
advisable.
Operating
voltages:
Power
consumption:
Transistors
and
IC
Diodes
and
rectifiers:
Technical
arrangement:
Technical
Data:
110,
130,
220,
240
volts
A.
C.;
50-60
c.p.s.
approx.
39
VA
24
x
BC
237
B,
1
x
BC
107
B,1
x
SN
709
N
B
60/C
800
Si,
2
x
AA
112,
/
2
x
5520
Magnetic
tape
echo/reverberation
and
torsional
reverberation
can
be
used
mixed
or
individually
Frequency
range:
Original
30--16,000
c.p.s.
Echo/reverberation
50
—-
12,000
c.p.s.
Frequency
correction:
per
input:
treble
=
+
10
db
to
—
18
db
at
10
Kcps.
bass
=
+
12dbto
—
17
db
at
30
cps
Reverberation:
treble
=
+
13dbto
~
18
db
at
10
Kcp
{Sound
control
button)
bass
=
+
10
dbto
—
17
db
at
60
cps.
Inputs:
2
X
2
universal
Sensitivity:
Impedance:
high-impedance
=pin
1+2
approx.
10
mV
approx.
100
KOhms
low-impedance
=pin
1+3
approx.
1
mV
1
KOhm
Output:
Red
coupling
jack:
Remote
control
jack
for
echo/reverberation:
echo
delay:
Tape
speed:
Number
of
echos:
Total
reverberation
duration:
Reverberation
control:
Reverberation
character:
Endless
magnetic
tape:
Modulation
indication:
Controls:
Fuses
for:
illumination
lamps:
Design:
Dimensions:
Weight:
Accessories:
Pint
+2
=
1
volt
approx.
5
KOhms
Pin
3
+
2
=
100
mV
approx.
5
KOhms
Pin
1
+2
=
30
mV
recording
voltage
Pin3
+2=
1
volt
playback
voltage
Pin
1
=
Live
wire
Pin
2
=
Shielding
for
Adagio
min.
96
msec.
max.
0.45
sec.
for
Presto
min.
48
msec.
max.
0.22
sec.
Presto
=
44
cm/sec.
((17'2
ips.),
Adagio
=
22
cm/sec.
(8%
ips.)
>
20
max.
approx.
8
sec.
1)
by
adjustable
recording
head
2)
by
variable
feedback
3)
by
variable
torsional
reverberation
variable
by
actuating
,Sound
control/Linear”
button
and
with
seperate
treble
and
bass
controls.
Type
DES
299,
51
cm
(20
in.)
long
by
instrument
2
mixing
controls,
2
reverberation
volume
controls,2
treble
and
2
bass
controls,
1
reverberation
mixing
control,
1
reverberation
duration
control,
1
treble
and
1
bass
control
for
reverberation,
1
slide,
4
pushbuttons
220-240
volts
=
400
mA/slow
110-130
volts
=
800
mA/siow
Motor
=
1.6
amp/slow
Transistors
=
400
mA/slow
Dimensions
=5
xX
20
mm
2x7V/03A-E10
Modern
biack-coloured
cabinet
with
removable
lid,
floodlight
contro
panel,
carrying
handle.
Width
=
386
mm
(144
in.),
Height
=
139
mm
(5’
in},
Depth
=
268
mm
(i0'2
in.)
7.6
kp
(nearly
17
Ibs)
Line
cord
Connecting
cable
VK
15
Spare
fuses
Subject
to
modification!
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MODIFICATIONS
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Pinternagel
Other manuals for Echocord Super 76
1
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