Page 1
OPERATING INSTRUCTIONS
TYPE
1269·A
POWER
SUPPLY
Figure 1.
Type
1269-A
Power
Supply.
..
:.
.
Page 2
TYPE
1269-A
POWER
PURPOSE.
The
Type
source
cular
for
1215-C,
tion
to
and
6.3
mating
of
plate
the
General
and
1361-A
other
instruments
volts
connector
1269-A
and
ac
supplied
Power
heater
at 3 amperes
power
Radio
Types
Oscillators,
requiring
Supply
for
to
which
about
maximum
2 DESCRIPTION.
The
Type
bench
cator
power
cabinet.
light.
cord
The
on
1269-A
On
output
the
left-hand
the
Power
front
panel
connector
side.
Supply
are
is
3 OPERATING CHARACTERISTICS.
The
Type
a maximum
405
volts
de. A 6.3-volt
If
the
ac
load
can
be
drawn
less
than
80
Both
from ground
connections.
1269-A
load
of
is
limited
from
millivolts
the
6.3-volt
and
from
Power
50
milliamperes.
3-ampere
to
the
300-volt
ac
at
ac
each
1.5
full
and
other
Supply
amperes,
supply
load.
the
to
(Figure
laboratory
1208-C, 1209-C,
the
on
the
provides
With
ac
heater
(at
300-volt
permit
it
attaches
300
volts
can
is
housed
on-off
right-hand
no
as
about
greater
1)
is
equipment
de,
be
made
switch
about
load
supply
much
285
de
supplies
SUPPlY
a
general-purpose
and
in
parti-
1209-CL,
directly.
at
50
by
in a convertible-
side,
300
the
output
is
~s
65
volts).
latitude
1211-C;
Connec-
rna
maximum
means
and
the
the
input
volts
de
is
also
provided.
milliamperes
Ripple
are
isolated
in
external
of
a
indi-
at
about
is
4 INSTALLATION.
4.1
ELECTRICAL
line
of
115 or 230
power
cord),
50
to '60
cillators
6.3-volt
4.2
idly
means
the _power
satisfactorily
To
and
BENCH
attached
of
the
give
greater
300-volt
MOUNTING.
to a Type
narrow
supply
CONNECTIONS.
volts
(as
indicated
cps.
The
power
supplies
adaptor
and
from a
the
400-cycle
latitude
are
The
1208-C,
plate
clip
Type
1209-C,
attached
Connect
supply
in
external
isolated
1269-A
and
associated
2
the
on
the
left-hand
will
line,
as
connections,
from ground.
Power
1209-CL,
to
the
Type
1269-A
operate
well.
Supply
1211-C,or
screws
oscillator L bracket.
to
side
near
rf
Unit
both
can
be
1215-Cby
supplied
an
the
Os-
the
rig-
with
ac
Page 3
To
attach
a.
panel
screws
hand
the
one
responding
screws
long
front
b. Remove
of
the
in
the
left
cation
the
upper
oscillator
to
The
the
coiled
proceed
is
feet.
c.
and
the
matching
necessary
The
left-hand
between
1.
the
two
2. Remove
supply
through
struments,
nuts
means
screws
and
moved
are
and
3.
4.
on
5.
of
the
while
reinstalled.
the
units,
Temporarily
from
to
attach
panel.
tapped
Attach
panel.
as
Remove
thumbscrews
Coil
Slip
the
the
Secure
the
that
oscillator
the
end
of
the
screws
rear
foot mounting
10-
the
lower
right-hand
tapped
Attach
hole
screws
Type
1269-A
side
the
follows:
the
the
from
the
the
power
the
matching
starting
power-supply
the
small
secure
the
proceed
remove
the
front
adaptor
the
adaptor
front
removed,
32
to
oscillator
holes
in
the
in
the
and
Power
of a
Type
cabinets
dust
at
the
rubber
left-hand
cables
long
10-32
holes
them
front
panels
adaptor
the
power-supply
panel
to
adaptor
as
follows:
the
upper
panel
plate
and
attach
receive
corners
the
clip
righ~-hand
nut
1361-A
and
covers
rear
feet
near
through
side.
plate
its
plate
of
to
plate
placed
rear
left
the
location.
the
to
the
upper
and
at
the
are
Supply
Oscillator.
the
from
of
each
from
side
of
and
plug
screws
the
rear
the
of
the
supplied
panel
left-hand
is
put
the
of
supplied
end
the
the
supplied
oscillator
and
the
power
power
over
feet
from
clip
to
Note
mounting
power
the
adaptor
lower
left-hand
side
panel
can
also
frames. To
both
instruments
cover
right-hand
oscillator.
them
on
the
oscillator
with
to
end
frame,
in
place,
lower
right-hand
supply.
supply,
the
the
the
oscillator L bracket
that
screw.
supply
left-hand
rear
of
with
be
The
and
in
as
with
side
side
and
the
its
right-hand
and
with
right-hand
oscillator.
this
hole
Do
by
fastening
plate
corners
of
the
the
power
the
power
rigidly
power
attach
by
removing
side
of
required.
the
power
plates
and
engaging
power
power
supply.
are
temporarily
then
not
to
attached
unscrewing
the
corner
Use
these
the
end
Using
in
this
replace
the
of
oscillator
supply.
supply.
cables
the
units
the
covers.
the
power
supply
of
the
supply
The
end
frame,
screws
left-
of
lo-
the
cor-
the
to
are
in-
the
by
re-
4.3
RELAY-RACK
Supply
480-P412
supply
4. 2,
unit,
supplied
4.4
the
attached
to
install
and
ELECTRICAL
General
Adaptor
the
left-hand
one
the
with
the
Radio
MOUNTING.
to
one
Plate
side
adaptor
other
on
the
Adaptor
CONNECTIONS.
oscillators
of
the
Set
is
of
the
plate
right-hand
Plate
listed
To
rack-mount
oscillators
required.
oscillator
on
the
left-hand
side.
Set.
Electrical
in
3
the
Type
mentioned
After
attaching
as
described
side
The
screws
connection
paragraph 1 is
1269-A
above, a Type
of
the
included
Power
the
power
in
paragraph
combined
required
to
one
in
are
of
the
Page 4
instructions
use
the
of
paragraph
four-prong
5 OPERATION.
The
on-off
place
this
switch
light
when
power
6
SERVICE
6.1
WARRANTY.
free
from
it
will
perform in
period
nentdards
repair
without
serv1ce.
6.2
of
occur,
of
that
after
agency
SERVICE.
materials
our
difficulty
partment
the
trouble
serial
and
Before
please
questing a Returned
handling
ranty, a purchase
delay.
defects
two
is
found
examination
charge,
and
service
cannot
(see
and
type
write
and
AND
years
personnel,
The
rear
returning
to
identification.
4.2.
connector
panel
switch
in
the
upper
is
turned
on.
MAINTENANCE.
We
warrant
in
material
full
accordance
after
original
within
except
workmanship
be
cover),
of
numbers
our
the
by our
will
for
tubes
two-year
engineers
eliminated,
giving
steps
taken
of
an
Service
Material
order
should
For
connection
supplied.
is
the
position.
that
each
and
workmanship,
with
shipment.
two-year
factory,
be
repaired,
or
warranty
in
our
will
assist
please
full
to
remedy
the
instrument.
instrument
Department
Tag.
Use
For
instruments
be
only
control.
The
new
instrument
applicable
Any
period
district
or,
batteries
stated
information
above
products.
in
any
write
or
it.
to
General
or
nearest
of
this
forwarded
to
other
To
indicator
and
that,
specifications
instrument
not
to
meet
office,
at
our
that
have
attests
When
way
phone
of
the
Be
sure
Radio
district
tag
will
not
covered
to
avoid
instruments,
turn
power
lamp
sold
properly
or compo-
these
or
authorized
option,
given
the
difficulties
possible.
our
Service
trouble
to
mention
for
office,
ensure
by
unnecessary
on,
should
by
us
used,
for a
stan-
replaced
normal
quality
do
If
the
De-
and of
the
service,
re-
proper
the
war-
is
6.3
REMOVAL
two
fluted
unlock
before
When
on
the
6.4
FUSE
Slo-Blo
is
removed.
230-volt
OF
locking
on
the
first
the
cover
is
replacing
back
of
the
REPLACEMENT.
line
fuses,
Sizes
lines.
DUST
screws
turn,
but
removed.
the
panel
before
accessible
are
0.6
COVER.
on
the
should
Pull
cover,
you
The
for
ampere
To
remove
back
be
loosened
the
cover
be
sure
tighten
Type
1269-A
replacement
for
115-volt
4
of
that
the
the
instrument.
off
the
it
the
locking
Power
input,
cover,
the
instrument.
engages
when
loosen
These
maximum amount
in
screws.
Supply
the
dust
0.3
ampere
the
uses
the
will
slots
two
cover
for
Page 5
6.5
CONVERSION
can
easily
by
reconnection
2. When
priate
input
ply
making
measures
voltage.
means
beneath.
5590
-1664)
be
converted
On
removal
For
instruments
may
TO
DIFFERENT
from
of
the
power-transformer
this
change,
should
be
instruments
of
the
be
ordered
LINE
115-volt
always
taken
so
that
changed
230-
nameplate; a 115-
changed
from
to
General
VOLT
to
230-volt
primary,
insert
the
from 230
230
Radio.
AGE.
The
power
input
or
vice
as
shown
in
proper-sized
legend
to
v
indicates
115
volts,
legend
fuses.
this
is
volts, a nameplate
supply
versa
Figure
Appro-
the
new
sim-
marked
(Type
1
SPECIFICATIONS
Output
ac
load
Regulation: At
Ripple:
Input: 105
load
400-cycle
be
Connectors:
4-terminal
tion
Accessories Supplied: Mating
Cabinet:
Dimensions: Width 4
195
Net
(at
115- or
at 3 amperes
is
65 rna,
Less
to
at
115 (or 230)
supply
tolerated.
receptacle
to
rf
Unit
Convertible-
by
235
mm)
Weight: 5 3/ 4
230-volt
(with
about
285
no
load,
than
80
12~
(or 210
volts.
for
applications
Line
cord
mounted
oscillators.
over-all,
pounds
input): 300
ac
load
volts
de
output
mv
rms
to
Can
permanently
bench.
1/4,
height
not
including
(2. 7 kg).
volts
at
1.5
amperes
de).
is
380
volts.
(120
cps)
at
full
250)
volts,
50
also
be
operated
where a 400-cycle,
attached
on
cabinet
plug
7 5/ 8,
for
the
side
4-terminal
depth 9 1/4
power
de
(±5%)at 50
·or
load.
tp
60
from a 110-
to
instrument.
for
cord
.
ma,6.3
less,
maximum
cps, 50
6.3-v
output
convenient
receptacle.
inches
,.--
volts
watts
to
125-v,
Standard
connec-
(110 by
\
de
full
can
"\.
FOR
FOR
115V
I
TO
F5
01 8 F502
230V
FSOI 8
OPERAriON CONNECT :
3 AND
2T04
" 0 .6
TO
F502;
AMP
CONNECT
3
0.3
AMP SLO-
OPERATION
2
SLO-BLO
·
BLO
5
Figure 2.
Schematic
Diagram.
Page 6
REF
NO.
PARTS
DESCRIPTION
LIST
PART
NU!viBER
R501
R502
R503
C501A
C501B
F501
F502
P501
PL501
S501
S0501
T501
V501
RESISTOR,
RESISTOR,
RESISTOR,
CAPACITOR,
FUSE 115v:
FUSE 115v:
PILOT
230v:
23Dv:
LAMP
Composition
Composition
Wire-wound
Electrolytic
0.6amp
0.3amp
0.6amp
0.3amp
POWER CABLE
SWITCH
SOCKET
TRANSFORMER
TUBE, Type 6X4
270Q ±10%
120KQ
6.8Q ±10%
.
Block
±10%
751Jf
450dcwv
flf 450dcwv
75
6120-1279
6120-4129
Part
of
4460-1900
5330-1100
5330-0800
5330-1100
5330-0800
5600-0700
4200-1800
7910-1300
4230-0700
1269-2000
8360-8100
7510-1930
*NEW
YORK:
SYRACUSE:
Pickard
Syracuse 11,
PHILADELPHIA:
SAN FRANCISCO :
*WEST
Broad
Avenue
New
Building, East
New
York Road
1186
los
Altos
Los
Altos,
at
California
Ridgefleld,
1150
Abington, Pennsylvan
GENERAL
CONCORD,
Linden
Jersey
Molloy
York
Avenue
GENERAL
*WASHINGTON: Rockville
Road
ia
*R•polr
RADIO
Representatives
RADIO
MASSACHUSETTS
Rockville ,
ClEVELAND:
*CHICAGO:
*TORONTO:
servi"teS
CQMii~NY
5579
Pearl
Cleveland
6605
West North Avenue
Oak
Pork , Illinois
99
Floral
Torontoi
ore
~voi,.ble
--
IOvers~lil,
~5(1\jipal
Overseas
6
COMPANY
Pike
at
Wall
lon
Maryland
Road
29,
Parkway
.5r
Ontario
01
these
,.;:;:)
.-
Ohio
MONTREAl: Office
offices.
Zurich, Switzerland
Countries
FlORIDA:
DAllAS
: 2501-A
Dal l
*LOS ANGELES:
395
Town
of
Mount Royal,
113 East
Orlando, Florida
West
as 35,
1000
los
Angeles
1255
Laird
Printed
Colonial
Mockingbird
Texas
North
Seward
38,
Boulevard
Quebec, Canada
in
U.S.A.
Drive
lone
Street
California
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