Page 1
SHA P-CUTOFF
TETR D
7587
•
low
heater
low plate
teristics from tube to
at all altitudes • Rigorously controlled and tested
• AII-metal-and-ceramic
ance to shock and vibration • Operation at metal
shell temperatures up to
characteristics • Approx. 1 inch long; less than
112
inch in diameter; weighs approx. 2.35 g
drain.
current.
Very high transconductance at
Exceptional
tube.
uniformity
Operation at full ratings
construction.
150~
C • Sharp-cutoff
of charac-
High resist-
Trademark(s) • Reglsterea
Marca(sl Regls1rada
s)
Page 2
RCA-7587
Ac
too. L
Size
General
The
lugs
long,
features
heater,
leakage,
milliamperes),
ability
Features
7587
of
unequal
less
(1)
and a specially
(3)
to
Nuvistor
nCA-7587
nuvistor
industrial
ness,
uniformity
withstand
the
mIxer
than
operate
low
These
7587
. .
serVIce.
has
an
all-metal-and-ceramic
width
1/2"
avery
high
rugged
transconductance
(4)
at
very
SHARP-CUTOFF
Type
type.
and
current
of
severe
features
particularly
to
in
diameter,
designed
full
for
IS
a
sharp-cutoff,
It
is
military
drain,
characteristics
mechanical
plus
facilitate
structure
high
input
ratings
Industrial
designed
small-signal
relatively
suitable
insertion
and
of
cathode
at
impedance,
at
shock
its
weighs
unique
low
any
TETRODE
Applications
general-purpose
for
use
applications
low-voltage
from
small
envelope
to
plate
altitude.
tube
and
vibration.
size
for
rf-if,
provided
id
a
socket.
approximately
design
assure
current
(5)
in
a
requiring
operation,
to
tube,
and
light
video-amplifier,
with
2.35
(2)
a6.3-volt
very
high
low
(10600
perveance,
tetrode
wide
It
variety
exceptional
and
ability
weight
two
peripheral
is
only
g.
low-wattage
heater-cathode
micromhos
of
the
of
compact~
to
make
and
1.
65"
The
7587
at
10
and
(6)
•
Structural
A
utilizing
This
provides
All
connections
to
eliminate
welding.
eliminate
devices
The
using
uniformity
Special
The
rigorous
life
variable-frequency
© 1961
All
Rights Reserved
Features
major
a
light-weight,
unique
a
structure
The
the
processed
structure
parts
of
Tests
7587
tests
performance;
by
Radio Corporotion
feature
type
are
the
tube
gases
made
characteristics
and
is
for
of
of
electrode
of
brazed
structural
is
and
at
low
of
the
to
Controls
rigidly
intermittent
for
vibration,
of
America
the
7587
cantilever-supported
excellent
at
very
strain
also
extremely
exhausted
impurities
temperatures.
7587
nuvistor
from
controlled
resistance
low-pressure
is
its
structure,
mechanical
high
and
and
which
small
tube
during
shorts;
to
impact
- 2 -
all-ceramic-and-metal
cylindrical
inherent
stability
temperatures
element
sealed
are
tetrode
tolerances,
to
tube.
manufacture,
for
early-hour,
breakdown,
distortion
at
generally
also
shock,
electrode
in
the
and
extreme
in a hydrogen
very
permits
thus
high
present
assuring
and
lOO-hour,
low-frequency
and
heater
construction
nuvistor
often
temperatures
automatic
exceptional
is
subjected
and
cycling.
structure.
design,
ruggedness.
atmosphere
caused
in
electron
assembly
lOOO-hour
vibration,
•
by
to
to
6-61
Page 3
7587
•
•
Special Tests
These
low
plate
at
full
tetrode
example,
medical
special
current
ratings
exceptionally
in
electronic
Electrical:
Heater,
Voltage
Current
Direct
Grid-No.l
Grid-No.l
Plate
Heater
Characteristics,
Plate-Supply
Grid-No.2
Cathode
Plate
Transconductance.
Pll1te
Grid-No.2
Grid-No.l
for
(ac
at
Interelectrode
to
cathode,
to
Supply
Resistor
Resistance
Current
Current
Voltage
and
Controls (Cont'd)
controls
and
at
any
altitude,
communications
equipment,
Unipotential
or
dc)
6.3
volts
to
plate
to
cathode,
grid-No.2,
cathode
Voltage
.
Class
..
Voltage.
.....
(Approx.).
..
(Approx.)
and
voltage,
desirable
equipment,
TV
Cathode:
.
Capacitances:
grid-No.2,
AI Ampl
ifier:
for
tests,
small
and
extremely
for
critical
cameras,
GENERAL
.
.
heater
heater
plate
together
power
control
and
DATA
&
&
shell
current
with
requirements,
small
industrial
and
test
and
shell
of
10
high
size,
instrumentation
transconductance
ability
make
applications
measurement
0.012
10600
J1.a.
the
6.3
O.
7587
15
7.0
1.4
1.4
125
50
68
0.2
10
2.7
4.5
to
operate
nuvistor
-
equipment,
instruments,
±
10%
ampere
max.
megohm
at
for
volts
J1.J1.f
J1.J1.f
J1.J1.
f
J1.J1.f
volts
volts
ohms
J1.mhos
ma
ma
volts
Mechan i ca
Operating
Maximum
Maximum
Maximum
Envelope.
Cap
..
Base
..
Socket.
Maximum
PLATE
PLATE
GRID-No.2
GRID-No.2
GRID-No.l
CATHODE
GRID-No. 1
SUPPLY
VOLTAGE
Negative
Peak
positive
I:
Position.
Overall
Seated
Diameter.
Ratings,
(SCREEN-GRID)
VOLTAGE
(CONTROL-GRID)
CURRENT
CURRENT.
Length.
Length
Absolute-Maximum
VOLTAGE.
. . . . . . . .
bias
value
value
.
.Medium
.
Cinch
INDUSTRIAL
For
Operation
. . . . . . .
SUPPLY
VOLTAGE:
VOLTAGE.
.
Ceramic-Wafer
Mfg. Co. No.133
SERVICE
Values:
at
Any
Altitude
Twelvar
.Metal
and
. . . . .
5-Pin
65
10
001,
Ceramic
JEDEC
(JEDEC
or
330
max.
250
max.
330
max.
110
max.
55
max.
2
max.
20
max.
2
max.
..
Any
1. 050"
0.840"
0.440"
Shell
No.Cl-44
No.E5-65)
Equivalent
volts
volts
volts
volts
volts
volts
rna
rna
- 3 -
Page 4
7587
PLATE
GRID-No.2
PEAK
Maximum
Grid-No.l
a
Heater
Direct
Plate
Plate
Grid-No.2
Transconductance
Transconductance
Transconductance
Reverse
Heater-Cathode
Leakage
DISSIPATION . . . . . .
INPUT
HEATER-CATHODE
Heater
Heater
negative
positive
Circuit
Circuit
For
fixed-bias
For
cathode-bias
For
Operation
Page
9).
Current.
Interelectrode
Grid-No.l
Grid-No.l
Plate
Heater
Current
Current
Difference
(1)
and
pressed
Heater
Heater
Between
tied
Between
tied
Between
tied
to
to
to
cathode,
to
cathode
Current
Transconductance
In
Grid
negative
positive
Resistance:
grid
together
grid
together
plate
together
.
VOLTAGE:
with
with
respect
respect
Values:
Resistance:
operation
operation.
at
Metal-Shell
CHARACTER IST I CS
plate.
cathode,
grid
(1)
(2)
(1).
(2).
Change:
between
per
Current.
Leakage
No.2
No.
Transconcluctance
cent
with
with
and
1 and
and
all
..
Capacitances:
grid
No.2,
of
Transconductance
Current:
respect
respect
all
all
other
to
cathode
to
cathode
a
Temperatures
RANGE
No.2,
heater
(2),
ex-
to
cathode
to
cathode
other
other
electrodes
electrodes
electrodes
up
VALUES
heater
&
to
150 0 C
&
shell
(1)
(See
FOR
EQU I PMENT
shell
Dimensional
DES IGN
Note
1,3
Min.
0.140
1
2
2
2
2
6.0
1.2
1.1 1.7
8.5
1,4
1,3
1,3
3,5
1.8
9000
8000
1,6
1,8
1,8
1,7
1,9
500
500
1, 10 500
2.2
0.2
100
100
0.5
I
Outline
Max.
0.160
0.012
11. 5
12200
max.
max.
max.
max.
max.
max.
8.0
1.6
50
3.6
20
0.1
5.0
5.0
watts
volts
val
megohm
megohm
Drawing
ampere
!-,mhos
!-,mhos
megohms
megohms
megohms
watt
ts
on
•
•
•
!-'a
ma
%
!-'a
1
!-'a
!-'a
•
Note
Note
Note
1:
2:
3: With dc
Note 4:
Note
Note
5:
6:
With
6.3
volts
Measured
in
accordance
plate
= 68 ohms, and
With
volts
With
With dc
volts=
dc
=
5.7
plate
-6,
volts
plate
-1.6,
and
grid-No. 1 resistor=
ac
or
dc
on
with
volts
=
125,
cathode-bypass
volts
metal
ac
volts
or
dc
=
=
125,
shell
200,
on
heater.
EIA
Standard
dc
grid-No.2
capacitor
dc
grid-No.2
grounded.
heater.
de
grid-No.2
0.5
- 4 -
RS-19l-A.
volts
= 1000 !-,f.
volts
volts
megohm, and
=
50,
=
70,
metal
cathode
=
50,
grid-No.l
dc
shell
resistor
grid-No.
supply
grounded.
1
Page 5
Note
Note
Note
Note
7:
8:
9:
10:
With
tied
With
With
tied
With
tied
grid-No.2
together.
100
volts
grid
No. 1 100
together.
plate
together.
300
100
dc
volts
volts
applied
volts
negative
negative
between
negative
with
with
with
respect
heater
respect
and
respect
all
to
cathode.
to
all
to
all
other
other
other
7587
electrodes
electrodes
electrodes
•
Shock
Impact
to
Tubes
Rating:
Acceleration.
This
determine
are
(flyweight)
impact
in
and
acceleration.
transconductance,
are
then
test
held
is
ability
rigid
Shock
subjected
SPECIAL
performed
of
in
Machine
At
reverse
to
RATINGS
on a sample
tube
four
to
withstand
different
and
are
subjected
the
end
of
grid
the
Variable-Frequency
AND
this
current,
Fatigue Rating:
Vibrational
This
tube
mounted,
to
perpendicular
tubes
the
to
2.5
are
Shock
Acceleration.
test
withstand
supplied
g
vibrational
criticized
Rating
is
to
the
Test
performed
the
specified
with
rated
acceleration
longitudinal
for
described
on a sample
heater
the
same
previously.
vibrational
voltage
at
axis
characteristics
Variable-Frequency-Vibration Performance:
This
The
VALUES
2000
the
longitudinal
cycles
test,
in
excess
tube
for
ohms.
per
tube
test
is
is
performed
operated
Transconductance
During
operation,
axis
second
must
of:
35
500
with a constant
not
millivolts
millivolts
under
of
show
on a sample
the
conditions
(1)
tube
the
tube
an
rms
over
over
the
the
with
is
the
vibrated
through
vibrational
output
frequency
frequency
PERFORMANCE
lot
of
tubes
the
specified
positions
to
20
test,
and
lot
of
60
cycles
of
the
lot
of
specified
addition
the
voltage
range
acceleration.
only,
in a Navy
blows
tubes
heater-cathode
Vibration
tubes
and
per
tube.
and
tubes
of a plate-load
in a direction
frequency
acceleration
across
from
range
from
DATA
from
are
from
each
impact
production
Type,
at
the
specified
criticized
leakage
Test
described
to
determine
Tubes
subjected
second
At
the
end-point
each
in
CHARACTERISTICS
range
the
50
6000
in
end
production
perpendicular
from
of I g.
plate-load
to
6000
to
1000
max. g
acceleration.
High-impact
maximum
for
change
current,
later.
2.5
max.
ability
are
rigidly
for
48
a
direction
of
this
values
resistor
50
to
During
resistor
cps
15000
cps
run
g
of
hours
test,
as
in
run.
RANGE
of
to
15000
the
Low-Pressure Voltage-Breakdown Test:
This
In
this
all
other
subjected
Heater
Cycles
This
under
two
minutes
test
test
electrodes
to
Cycl
of
Intermittent
test
the
following
tubes
air
ing:
off;
is
performed
pressures
is
performed
heater
are
operated
and
will
Operation.
conditions:
100
on a sample
with
not
break
equivalent
on a sample
heater
volts
negative
lot
240
to
- 5 -
of
rms
down
altitudes
lot
of
volts
with
tubes
volts
or
tubes
==
7.5,
respect
show
up
from
applied
evidence
to
from
cycled
to
each
between
100000
each
one
cathode;
production
of
corona
feet.
2000
min.
production
minute
plate
grid
run.
and
when
cycles
run
on
and
No.
1,
Page 6
7587
grid
tubes
No.2,
are
plate,
tested
and
for
metal
open
shell
heaters
connected
and
heater-cathode
to
ground.
At
shorts.
the
end
of
this
test
Intermittent
This
Tubes
Amendment
tapper
tubes
are
b
.
are
Early-Hour
This
insure
for
and
under
tance
operation
20
hours
again
the
(1).
that
lOO-Hour
This
to
insure
lOO
llours
Intermittent
conductance
Shorts:
test
is
subjected
2,
Par.
The
Acceptance
criticized
Stability
test
is
tubes
at
after
conditions
A
tube
has
changed
Life Performance:
test
a
low
at
is
maximum
Shorts
of
CHARACTERISTICS
than
one
microampere
performed
to
4.7.7 J except
for
Life Performance:
performed
are
properly
maximum
20
hours
specified
is
rejected
more
performed
percentage
rated
Test
not
less
RANGE
VALl:ES
for
on a sample
tIle
Thyratron-Type
Curve
permanent
on a sample
rated
of
plate
operation
in
if
than
on a sample
of
early-hour
plate
previously
than
7600
for
reverse
lot
of
Shorts
that
tapping
for
this
or
stabilized.
dissipation.
temporary
lot
tubes
is
test
of
CHARACTERISTICS
its
transconductance
10
per
cent
dissipation,
described.
micromhos
from
lot
of
inoperatives.
under
Transconductance
grid
current.
tubes
done
is
tubes
In
are
tubes
Test
by
shown
shorts
from
this
After
checked
RANGE
the
and
Tubes
the
(1),
from
each
described
hand
in
Fig.3.
and
each
test
two
for
VALUES
after
O-hour
from
Tubes
then
must
conditions
and a
production
in
with
open
tubes
hours
value.
each
then
a
soft
In
circuits.
production
are
o~
transconductance
for
Transconduc-
two
or
production
are
operated
subjected
show a trans-
specified
value
MIL-E-ID,
rubber
this
run
operated
operation
20hours
to
not
greater
run.
test
run
for
the
to
of
in
t
• \'
IOOO-Hour
This
to
insure
failures
In
this
and
leakage
in
transconductance
specified
hours
b
Specifications
The
or
equivalent.
The
with
electron
Absolute-Maximum
conditions
its
publ
then
and
the
test
due
test
current,
base-pins
maximum
following
devices.
ished
Life Performance:
is
performed
high
criticized
in
25
applicable
quality
to
excessive
tubes
are
and
operated
for
the
of
the
CHARACTERISTICS
per
cent
for
The
ratings
data,
at
this
tapper
of
the
socket
definition
ratings
to
and
should
on a sample
of
the
individual
changes
inoperatives,
leakage
lot
in
for
resistance.
from
RANGE
1000
hours.
will
be
OPERATING
7587
in
any
fit
may
the
of
are
electron
not
be
tabulated
the
limiting
be
lot
of
tubes
tube
any
of
the
characteristics
1000
hours
the
VALUES,
supplied
reverse
O-hour
must
on
at
maximum
In
value
request.
CONSIDERATIONS
the
Cinch
mounted
Absolute-Maximum
device
exceeded
Mfg. Co.
to
hold
data
values
of a specified
under
and
grid
addition,
not
are
of
operating
the
from
each
guard
rated
current,
for
Transconductance
exceed
socket
the
tube
established
Rating
worst
probable
production
against
indicated
plate
heater-cathode
the
average
20
per
No. 133 65
1n
any
in
System
and
environmental
type
as
epidemic
below.
dissipation
change
cent
at
10
position.
accordance
for
rating
defined
conditions.
run
4t
(1)
500
001
by
- 6 -
Page 7
•
The
device
ability
envirOllment
to
variations
The
equipment
out
life
any
dpvice
voltage
load
device
variation,
variation,
characteristics
manufacturer
of
the
device,
variations,
in
device
no
absolute-maximum
under
the
signal
taking
and
characteristics.
manufacturer
worst
equipment
probable
variation,
.
chooses
no
the
effects
should
value
component
these
values
responsibility
of
design
for
the
operating
variation,
environmpntal
changes
so
intended
conchtions
to
provide
for
equipment
in
operating
that
initially
service
with
equipment
conditions,
acceptable
conditions
is
exceeded
respect
control
and
variatiuns
service-
variations,
and
through-
to
supply-
adjustment,
7587
due
with
in
•
Information
and
reliable.
ReA
for
or
other
its
use.
otherwise
its
rights
under
furnished
However,
use;
No
license
of
nOT
any
by
for
third
patent
ReA
is
no
responsibility
any
parties
is
granted
or
- 7 -
believed
infringements
which
by
patent
to
be
accurate
is
assumed
of
may
result
implication
rights
patents
of
ReA.
by
from
or
Page 8
7587
Ef·5.3
GRID
~
3~
~i
il"
)(~
i
0
N
NlIl
N.
0
u
'"
VOLTS
l
VOLTS-50
..
0
I
PLATE
Ef'''6.3
VOLTS
PLATE VQLTS=J25
GRID
NIZ
VOLTS'SO
ol.
0
IN
0
~
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T
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le
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10
•
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-3
GRID-Nil
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92.CM-I092.7
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16000
14000
12000
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8000~
6000
4000
2000
0
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u
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•
Fig.! • Ave
rage
Characteristics
Type
for
7587.
IOOO~
,
~
,
,
•
RESISTANCE
,
,
AREA OF
III
• •
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lil
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0
x
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I
1000
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•
•
,
,
•
•
,
,
•
Fig.3 -Thyratron-Type
Type
ACCEPTABILITY
I
I I 1
•
10
OF'
SHORT-OHMS
75.87.
- 8 -
Fig.2 -Average
./
IIII
1111
,
,
Shorts
.
100
111000
,
,
92.CS-I04"5
Test
Characteristics
Type
,
.
1000
7587.
for
for
•
Page 9
DIMENSIONAL
OUTLINE
7587
•
1.050"
MAX.
.Olb"
METAL
CAP
JEDEC - I "
No.CI-44
,-1----l=r=~-----.:*
.840"
MAX.
t.AETAL
SHELL
.100"
MIN.
.130"MAX
•
f
5
PINS
±.ool"
OIA.
~
.'
LARGE
LUG
~8
0
0'0
.'/
12
..,
••
~
.175
MIN.
JEDEC
+.020"
-.015"
/,WArER
/'
.220"t..1IN.
CERAMIC
CYLINDER
BASE
N~
.190"
CERAMIC
SMALL
LUG
f
I
E5-b5
•
PIN
PIN
PIN
PIN
PIN
PIN
1 ,
A
2,
GRID
3,
A
4,
GRID No.1
5,
A
6,
A
NOTE
ALa'lG
NOTE
IN
Za'lE
No. 2
A
Pin
off
I:
MAXIMUM
O.
190"
2:
SHELL
"A"
BETWEEN
BASING
has
internal
close
to
• =PIN
CUT
O.D.
LUG
TEMPERATURE
DIAGRAM
ceramic
OF
LENGlll.
BROKEN
J 2AS
connection
(Bottom
wafer--Do
OFF
0.440"
SHOUlll
LINES.
92CS-I0852
IS
PERMITTED
BE
View)
and
is
Not
MEASURED
PIN
PIN
PIN
10,
PIN
PIN
IL
PIN
12,
CAP,
cut
Use.
7,
A
S,
CATIfODE
9,
A
HEATER
OMITTED
HEATER
PLATE
Page 10
7587
MEDIUM
SOCKET INSEFlTION
PLANE
,040"'MAX.
.
'90"!:8fsO"
INDEX GUIDE
LARGE LUG
b~
CERAMIC-WAFER
TWELVAR
I
I
~
r--i1---.400"
.Ol?_""
~.43~"
MIN.
MAX.
I.
0.0.
.I00"MIN
.IJO"MAX.
;:::-T BASE SEATING
0'-:1
x··:<~
I.-
~
.::t "
'-----i--SMALL
BASE
METAL
•
PLANE
.016"
\
0
6
..
-
04
t
,j,o
SHELL
ALL
:t
DIA.
CERAMIC
wArER
PINS
.001"
•
LUG
JEDEC No.
E12-64
E5-65
Hote
I:
0.190"
Hote
that
Pin
Base
tolerances
without
plate
0.0350"
circles
0.0005",
holes
on
0.0700"
with a tolerance
gauge
of
0.4200"
circles
±
0.0005".
lug
2:
their
11
is
pin
gauge
located
provides
0.2270"
MaximuM
length.
Pins
ends
omitted.
positions
such
undue
having
±
0.0005"
as
follows:
three
±
±
±
0.0005"
at
180
12-Pin
0.0.
1,3,5,6,7,
do
not
PIN-ALIGNMENT
and
that
force
holes
on
0.0005"
0.0005"
0
entire
pass
thickness
diameter
Three
located
0.1400"
diameter
of ± 0.08 0 for
for
two
diam~ter
±
0.08
Base
S-Pin
of
touch
curved
and
Base
0.440"
and9arecutoffto
the
lug
positions
length
into
of
located
holes
on
±
0.0005",
0.1450"
circle
and
having
1,2,3,4,5,6,7,B,
2,4,B,
15
permitted
socket
insertion
GAUGE
shall
of
and
0.25"
0.2100" ± 0.0005",
circles
each
slots
pins
disengage
and
on
four
located
three
at
specified
angle.
with
±
0.0005"
concentric
a
width
twelve
chordal
92.CM-I0478RI
PINS
9,10,1l.12
10,
12,
(Note
along
a
length
plane.
be
held
and
lugs
from
holes
concentric
on
0.2800"
holes
In
additl.on,
located
of
located
ant;;'les
lengths
with
0.0230"
the
such
will
flat-
three
pin
2)
•
to
of
±
on
- 10 -
Page 11
--PLATE
7587
GRID
"";"-+--HEATER
lICERAMIC
I
INSULATOR
No.2
----~~~-CATHODE
~~--.H---GRID
CERAMIC BASE
No.
I
WAFER
r
Fig.4
-Illustration
INDEXING LUGS
of a nuvistor
and
tripod-like
tetr-ode
-
11
supports.
-
showing
cylindrical
electrodes
Page 12
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