Tektronix 507 Manuale utente

CATHODE-

RAY

OSCILLOSCOPE

TYPE

507

INSTRUCTION

MANUAL

TEKTRONIX,

INC.

MANUFACTURERS

CATHODE-RAY

AND

VIDEO

TEST

INSTRUMENTS

-507-1

Sunset

Highway

and

Barnes

R ad

•

P.O.B x

831

•

P rtland

Oreg n,

Ph ne:

CYpress

2-2611

•

Cables:

Tektr nix

TYPE

507

SERIAL

NUMBER

_________

Copyrig t

1959

Tektronix,

Inc.,

Portland,

Oregon.

Printed

t e

United

States

America.

All

rig ts

reserved.

Contents

t is

publica



tion

may

not

reproduced

any

form

wit out

permission

t e

copy



rig t

owner.

CONTENTS

Vertical

Deflection

System.

Sweep

Circuit.

Power

Sup



plies.

Miscellaneous.

Functions

Controls

and

Con



nectors.

GENERAL

DESCRIPTION

SECTION

Sweep.

Vertical

Deflection

System.

Cathode-Ray

Tube

Circuit.

igh-Voltage

Power

Supply.

Time

Mark

Gen



erator.

External

Power

Supply.

CIRCUIT

DESCRIPTION

SECTION

Preventive

Maintenance.

Analyzing

Trouble.

MAINTENANCE

SECTION

ADJUSTMENT

PROCEDURE

SECTION

PARTS

LIST

SECTION

SCHEMATIC

DIAGRAMS

SECTION

ACCESSORIES

SECTION

507

GENERAL

DESCRIPTION

T e

Tektronix

Type

507

Oscilloscope

specialized

instrument

designed

primarily

for

ig -voltage

surge

testing

applied

power

transformers,

ig -voltage

insulators,

lig ting

arrestors

and

allied

components,

and

t eir

associated

design

and

acceptance

tests.

T e

use

24-kv

accelerating

potential

new

type

cat ode

ray

tube

permits

p otograp ic

recording

single

sweeps

t e

maximum

writing-rate

permitted

t e

vertical

deflection

and

sweep

circuits.

T e

vertical

deflection

system

provides

risetime

approximately

millimicroseconds

and

sensitivity

approx



imately

v/cm.

external

lengt

delay

cable

can

inserted

into

t e

vertical-input

signal

circuit

permit

viewing

t e

lead



ing

edge

t e

waveform

w ic

triggers

t e

sweep.

Time

markers

are

available

for

convenient

calibration

t e

sweep.

T e

Type

507

consists

two

units,

indicator

and

power

supply,

mounted

Scope-Mobile,

t us

making

convient

mobile

unit.

desired,

t e

units

may

lifted

off

t e

Scope-Mobile

for

benc

use.

VERTICAL

DEFLECTION

SYSTEM

Transient

Response

Risetime

between

10-percent

and

90-percent

amplitude

points

about

millimicroseconds

(.005

microseconds).

passive

damping

network

inserted

t e

deflection

leads

adjusted

for

optimum

transient

response

wit out

overs oot

ringing.

T e

maximum

vertical

sensitivity

wit

Type

T507P

cat ode-ray

tube

operated

24-kv



celerating

v/cm.

Attenuator

step

attenuator

wit

c aracteristic

imped



ance

o ms

provided

t e

vertical-input

signal

circuit.

T e

attenuator

composed

ten

equal

resistors

7.2

o ms

eac ,

mounted

tap

switc .

T e

percentage

input

signal

applied

t e

deflection

plates

can

selected

t e

tap

switc

from

percent

100

per



cent

10-percent

steps.

Signal

Mode

t ree-position

switc

reverses

t e

deflection



plate

polarity;

t e

center

position

t e

switc

used

conjunction

wit

trigger-selector

switc

apply

markers

for

p otograp ing

time

references.

Positioning

Switc

T e

Type

507

seven-step

vertical-posi



tion

switc

wit

50-volt

steps

—

150v,

—

100

—

+50

+100

and

+150

sep



arate

two-position

switc

selects

eit er

50-volt

steps

continuously

variable

adjustment.

External

Voltmeter

Connections

Terminals

are

provided

for

ig -impedance

(5000Ω/v)

voltmeter,

permitting

vertical

cali



bration

w en

using

t e

variable

positioning.

GENERAL

DESCRIPTION

—

TYPE

507

1-1

Signal

Delay

Two

standard

UHF

connectors

are

provided

t e

rear

t e

instrument

for

insertion

external

lengt

delay

cable

into

t e

vertical



input

signal

circuit.

C oice

t e

appropriate

lengt

and

type

cable

t e

discretion

t e

user;

delay

cable

furnis ed

wit

t e

instrument.

signal

delay

permits

t e

sweep

triggered

and

under

way

before

t e

signal

applied

t e

vertical

deflection

plates.

SWEEP

CIRCUIT

Type

Triggered,

ard-tube

bootstrap

sweep

circuit

wit

inverter

produce

balanced

deflection.

Rates

eleven-position

switc

selects

rates

.02,

.05,

.1,

.2,

.5,

10,

and

MICRO-

SECONDS/CM,

wit

maximum

displacement

error

percent

over

t e

center

t e

10-cm

sweep

lengt .

Sweep

Starting

Time

T e

orizontal

sweep

starts

approximately

100-m/zsec

after

t e

signal

triggering

pulse

arrives

t e

rear-panel

connector.

inserted

signal

delay

approximately

150

sec

permits

t e

sweep

triggered

and

under

way

before

t e

signal

applied

t e

vertical

deflection

plates.

Duty

Cycle

Limitation

duty-cycle

limiting

control

automatically

limits

t e

duty

cycle

t e

sweep

circuit

about

percent

avoid

exceeding

t e

dissipation

limits

some

t e

circuit

components.

T e

limiting

system

serves

purely

protective

func



tion

and

does

not

provide

frequency

dividing

operation.

T e

following

table

s ows

t e

maximum

per



missible

repetition

rate

for

eac

t e

avail



able

sweep

times

per

centimeter.

SWEEP

TIME

MAXIMUM

REPETITION

RATE

sec/cm

600

c/s

sec/cm

1.5

sec/cm

.05

sec/

.02

sec/cm

Triggering

triggering

p ase-inverter

amplifier

con



junction

wit

selector

switc

permits

t e

sweep

circuit

triggered

from

eit er

positive-

negative-going

portions

t e

observed

signal,

from

positive

negative

triggers

from

external

source.

trigger

voltage

range

100

volts

3000

volts

amplitude

will

adequate

for

stable

triggering.

T e

MARKER

position

t e

selector

switc

must

used

w en

time

markers

are

desired.

Sweep

Mode

two-position

switc

provides

for

eit er



petitive

single-sweep

operation.

W en

t e

switc

t e

single-sweep

position,

pressing

t e

RESET

button

arms

t e

sweep

circuit.

T e

sweep

can

t en

triggered

internally,

MAN



UAL

TRIGGER,

external

trigger.

T e

1-2

GENERAL

DESCRIPTION

—

TYPE

507

MANUAL

TRIGGER

switc

primarily

for

p oto-

t e

calibrated

vertical

position

lines,

create,

grap ing

zero

reference

line

and

any

all

effect,

parallax-free

graticule.

POWER

SUPPLIES

Cat ode-Ray

Tube

Accelerating

Voltage

oil-sealed

supply

t e

a-f

oscillator

type

provides

(+20

and

—

kv)

for

t e



celerating

potentials.

T e

—

4-kv

supply

reg



ulated

compensate

for

load

c anges

and

line



voltage

c anges.

Low-Voltage

Supply

separate

power

unit

provides

regulated

voltages

for

t e

indicator

unit

+750,

+475,

+225

and

—

250

volts.

T e

unit

also

provides

unregulated

voltage

+360

volts

for

t e

oscillator

t e

ig -voltage

supply

for

t e

circuit.

Power

Requirements

600

watts

117

volts.

Voltage

range

105-125

210-250

volts,

60-cycle,

single-p ase

ac.

Two

primary

circuit

fuses

are

provided

for

protection

against

sustained

over-load

conditions.

MISCELLANEOUS

Cat ode

Ray

Tube

Type

T507P

ca ode-ray

tube

wit

P11

p os



p or

furnis ed

wit

t e

Type

507

unless



ot er

p osp or

specified.

Construction

Contained

two

separate

units

convenient

size,

normally

mounted

Tektronix

Type

500A

Scope-Mobile.

T e

anodized

c assis

and

t e

blue

wrinkle-finis ed

cabinets

are

made

aluminum

alloy.

P oto-etc ed

anodized

pan

els

are

employed.

Dimensions

Indicator

unit:

16-¾"

ig ,

13"

wide,

23-

¾"

deep.

Power

unit:

½"

ig ,

13"

wide,

17½"deep.

Weig t

Indicator

unit

................................................

lbs.

Power

Unit

.................................................

lbs.

Type

500A

Scope-Mobile

..........................

lbs.

FUNCTIONS

CONTROLS

AND

CONNECTORS

6.3V

1A.

Tip

jack

from

eater

bus.

SCALE

ILLUM.

Variable

resistor

controlling

brig tness

lamps

illuminating

graticule

over

face

cat ode-ray

tube.

ASTIGMATISM

Potentiometer

controlling

t e

voltage

t e

astigmatism

anode

t e

cat



ode-ray

tube.

Proper

setting

t e

voltage

t is

anode,

wit

respect

t e

deflection

plates,

permits

t e

spot

focused

s arply

bot

dimen



sions

simultaneously.

INTENSITY

Potentiometer

controlling

grid

voltage

t e

cat ode-ray

tube

and

t ere



t e

brig tness

t e

trace.

FOCUS

Potentiometer

controlling

t e

voltage

applied

t e

focusing

anode

t e

cat ode-ray

tube

for

focusing

t e

trace.

GENERAL

DESCRIPTION

—

TYPE

507

1-3

HORIZONTAL

POSITION

Twin

differentially-connected

potentiometer

controlling

average

potential

cat ode-ray

tube

orizontal

deflection

plates,

t ereby

adjusting

orizontal

position

sweep.

SWEEP

MODE

Two-position

toggle

switc

select

eit er

repetitive

single-sweep

opera



tion.

RESET

Button-switc

arms

t e

sweep

circuit

w en

t e

SWEEP

MODE

switc

t e

SINGLE

SWEEP

position.

T e

READY

lig t

indicates

t at

single

sweep

will

produced

upon

reception

trigger

pulse

from

t e

signal



served

(or

p otograp ed),

from

external

trigger

source,

from

t e

man



ual-trigger

circuit

(obtained

depressing

t e

MANUAL

TRIGGER

switc ).

STABILITY

Potentiometer

controlling

grid

bias

negative

multivibrator

tube.

Deter



mines

optimum

point

triggering.

MICROSECONDS/CM

Gang

switc

controlling

sweep

duration

and

sweep

rate.

Selects

appropri



ate

multivibrator

pulse

lengt ,

and

sweep

generator

c arging

capacitor

and

resistor.

Switc

also

selects

TIME

MARKERS

for

convenient

calibration

t e

sweep.

TRIGGER

SELECTOR

Switc

selecting

source

and

polarity

sweep-triggering

voltage.

MANUAL

TRIGGER

Button-switc

provides

manually-controlled

trigger

for

sweep

generator.

MANUAL

TRIP

PULSE

Button-switc

provides

pulse

approximately

700

volts

amplitude

and

µsec.

widt

TRIP

PULSE

OUT

connector

rear

panel

instrument.

VERTICAL

ATTENUATOR

SIGNAL

MODE

Switc

selects

percentage

input-signal

voltage

applied

vertical

deflec



tion

plates.

T ree-position

switc

reverses

deflection-plate

polarity

wit

respect

signal

being

observed.

T e

center

position

t e

switc

connects

t e

output

t e

Time-Mark

Genrator

t e

vertical

deflection

plates.

VARIABLE

DEFLECTION

Switc

connects

arm

VARIABLE

positioning

control

EXTERNAL

VOLT



SENSITIVITY

MONITOR

METER

connectors

front

panel

instrument

monitor

t e

variable

positioning

voltage.

Polarity

voltage

may

reversed.

POSITIONING

VOLT

STEPS

Seven-position

switc

control

voltage

cat ode-ray

tube

vertical

deflec



tion

plates

50-volt

steps.

Eac

position

t e

switc

causes

t e

beam

s ift

approximately

centimeter

t e

vertical

plane.

T is

switc

con



nected

into

t e

circuit

w en

t e

toggle

switc

immediately

below

t e

VOLT

STEPS

position.

POSITIONING

VARIABLE

Potentiometer

controlling

average

potential

cat ode-ray

tube

vertical

deflection

plates,

providing

continuous

adjustment

vertical

position

beam.

T is

control

connected

into

t e

circuit

w en

t e

toggle

switc

immediately

below

t e

VARIABLE

position.

VOLT

STEPS

VARIABLE

Toggle

switc

determines

w et er

vertical

positioning

continuously

variable

50-volt

steps.

1-4

GENERAL

DESCRIPTION

—

TYPE

507

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