RCA 8058 schematic

double-ended type for - indu trial applications

•

RADIO

CORPORATION

OF

AMERICA

ELECTRON

TUBE

DIVISION,

HAIUUSON,N

J

Trodemark(s) ® Registered

Morca(:!.) Registroda(sJ

8058

P,inted

in

U.S.A.

ReA-80S8

HIGH-MU NUVISTOR TRIODE

RCA-80S8

type.

wide

In

degree

the grid. inductance

variety

Actu.a~

addition,

The peripheral

designed

Size

of

Furthermore,

General

The

lugs

8058

construction,

plate

inch

to

of

long,

features

assure

current,

operate

is

of

equipment characteristics,

shock

cathode-drive oscillator

conductance·

current

the

isolation

8058

is

and

Features

8058 unequal

has

only

(1) a very

(3) a 6.

very

at

full

a

double-ended,

for

use

applications.

where

and

vibration

The

8058

The

8058

of

double-ended

between

particularly

lugs

provide

(5)

used

three

an

all

width

0.440"

low

heater-cathode

high

ratings

to

3-volt

high-mu

in

cathode-drive

The

compactness,

and

the

are

is

capable

rf-amplifier

over a wide

features

to-plate

10

mi11iamperes

very

construction

the

input

suitable

for

indexing

base-pin

flexibility

metal-and-ceramic

facilitate

in

diameter,

rugged

input

at

structure

low-wattage

impedance,

any

nuvistor

amplifier

8058

primary

of

is

low

ability

design

providing

service,

range

current

of

high

frequencies.

transconductance

ratio

and a plate-supply

of

and

output

for

cathode-drive

are

also

connections

in

circuit

envelope

insertion

and

weighs

of

heater

leakage,

altitude.

(6)

(4)

high

triode

service

especially

drain,

to

exceptional

withstand

requirements.

high

and

excellent

(12400

this

used

layout.

in

unique

and a specially

nuvistor

circuits.

as

for

provided

a

socket.

approximately

design,

high

perveance,

of

the

heater-cathode

up

to

useful

gain

in

severe

with

stability

and a high

micromhos

voltage

provides

applications

the

connections

the

cathode

with

It

two

is

2.2

(2)

designed

transconductance

and

(7)

1200

Mc

industrial

uniformity

mechanical

low

noise

trans-

at

a

plate

of

110

volts).

a

because

to

reduce

peripheral

less

than

grams.

double-ended

cathode

at

the

ability

in

as

high

lead

a

of

In an

•

the

one

The

low

•

Structural

A

major

lizing

This

vides All

to welding. eliminate

devices

using

formity

a

unique

a

connections

eliminate

processed

The

structure

parts

of

Features

feature

light-weight,

type

structure

the

The

tube

the

gases

made

characteristics

of

are

structural

is

at

of

to

of

the

8058

cantilever-supported

electrode

excellent

brazed

and low

the

extremely

at

also

exhausted

impurities

temperatures.

8058

from

is

its

structure,

mechanical

very

high

strain

.nuvistor

small

tube

all-ceramic-and-metal

cylindrical

inherent

stability

temperatures

and

element

and

sealed

which

tolerances,

to

triode

tube.

are

generally

also

- 2 -

in

distortion

at

permits

thus

the

and

in

very

assuring

construction

electrode

nuvistor

extreme

a

~ydrogen

high

present

automatic

structure.

design,

ruggedness.

atmosphere

often

temperatures

exceptional

caused

in

uti-

pro-

by

to

electron

assembly

uni-

12-61

8058

•

Special

rigorous electrode

breakdown,

The

Tests

8058

tests

leakage,

and

Electrical:

Heater,

Voltage

Current

Direct

Cathode-Drive

Characteristics,

for

(AC

at

Interelectrode

Plate

to

Cathode Plate

Heater

to

Unipotential

to

Plate-Supply Grid-Supply

Cathode Amplification

Plate

Transconductance.

Plate

Grid

Resistance

Current

Voltage

Voltage.

Resistor

and

Controls

is

rigidly

for

intermittent

impact

heater

or

DC)

6.3

volts

Operation:

cathode

...

grid & shell

grid

&

shell

cathode

Class

Voltage.

...

Factor.

(Approx.).

. .

..

(Approx.)

controlled

shock,

cycling.

GENERAL

Cathode:

.

Capacitances:

and

heater

. . . . . .

AI

Amplifier:

for

plate

during

shorts,

variable-frequency

IOOO-hour

DATA

heater.

.

current

~

manufacture,

10

f-La.

life

performance,

vibration,

and

0.135

0.046

5600

12400

is

subjected

inter~

low-pressure

6.3 ± 10%

max.

6

1.

3 p f

1.

4

110

o

47

70

10

-5

to

volts

amp

pf pf

pf

volts

ohms

f-'mhos

ma

volts

•

Mechan

Operating

Maximum Maximum Maximum Envelope.

Cap

Base.

ica

.

. .

Maximum

PLATE PLATE GRID

PLATE

SUPPLY VOLTAGE

VOLTAGE:

Positive Negative

DISSIPATION . CATHODE PEAK

HEATER-CATHODE

Heater Heater

I:

Position.

Over-all

Seated Diameter

Ratings,

VOLTAGE.

bias

CURRENT

negative

positive

Length

.

Absolute-Maximum

For

.

value value

. . .

VOLTAGE:

with

respect respect

.Medium

Ceramic-Wafer

INDUSTRIAL

Values:

Operation

to

cathode

to

cathode

SERVICE

at

Any

Twelvar

Altitude

.Metal

.Small, 5-Pin

and

JEDEC

(JEDEC

330 150

0

55

1.5 15

100 100

Ceramic

No.Cl-44

No.E5-79)

max. max.

max. max. max.

max. max.

.

Any

0.985

0.780

0.440 Shell

volts volts

volts vol watts

volts volts

" " "

ts

ma

- 3 -

8058

Maximum

Grid-Circuit

For

Circuit

Resistance:

fixed-bias

cathode-bias

Typical Operation

Plate

Cathode Plate Power

Bandwidth

Noise

a

b

For

Argon

Supply

Resistor.

Current

Gain.

Factor

operation

Noise

Voltage.

b

at

Source.

CHARACTERISTICS

Heater Direct

Plate

Heater

Plate

Pl ate

P1a

Transconductance Transconductance

Reverse

Amplification

Heater-Cathode

Heater

Leakage

Between

Be

Current

Interelectrode

Cathode

Curren

te

Curren

trodes

tw

een

trodes

to

grid

to

grid & she

to

cathode.

to

cathode

(l)

t

t ( 2) .

Grid

Resistance:

Current

Factor

negative

positive

grid

tied

plate

tied

Leakage

and

Values:

operation.

in

Cathode-Drive RF-Amplifier Service:

metal·

together

and

together

&

.

(1)

(

2)

with

shell

Input

shell

11

all

a

temperatures

is

tuned

RANGE

Capacitances:

and

heater

and

heater

Current:

respect

other

elec-

for

to to

up

to

optimum

VALUES

cathode. cathode.

1500 C

value.

FOR

At At

450

Mc

700

Mc

110

47 10

16.5

110 110

47 10

12.5

6 12 12

6.5

(See

9.5

Dimensiona~

EQUIPMENT

Note

1

2 2 2

2 1,3 1,4 1,3 3, 5 8700 1,6

1.3

1,7 1,7

1,8

1,9

Min.

O.

10000

5000

10000

0.5

1.0

At

1200

47 10

10.5

12.2

Outline

DESIGN

Max.

125

5.0

1.1

7.8

54 86

0.145

0.046

12.2

14800

max.

megohm

max. megohm

Mc

\-oIts

ohms

ma db

Mc

db

on

Page

9),

amp

7.0

1.5

1.7

pf pf pf pf

ma

50

/-La

f-Lrnhos

f-Lrn

ho

0.1

5 5

megohms

/-La

f-L8

/-La

"

s

•

Note Note

Note

Note Note

Note

1: 2:

3:

4:

5: 6:

With

6.3

Measured

With

dc

bypass With de

With

5.7

With de

0.5

megohm.

volts

in

accordance

plate

capacitor

plate

volts

plate

ac

volts

=1000

volts

ac

volts

or

=

= =

dc

110,

dc

150,

on

with

/-Lf.

on

heater.

ErA

cathode

de

heater.

grid

- 4 -

Standard

grid

supply

resistor

volts

RS-191-A.

=

-5.

volts

=

47

-1.

ohms,

3,

grid

and

resistor

cathode-

=