Paco T-65 User instructions

__

Manual

.••

Net Price:

$1.00

•

·

TRANSISTOR

·

and

Crystal

Diode

·

TESTER

KIT

·

Model

T·65

·

ELECTRONICS

CO.,

INC.

A

DIVISION

OF

PRECISION

APPARATUS

CO.,

INC.

70-31 84th

STREET,

GLENDALE

27,

l.

I.,

N.

Y.

-

~

-====-~~J

- IMPORTANT

1FJOTICE

PLEASE

MAKE

THE

FOLLOWING

CORRECTIONS

IN

YOUR

INSTRUCTION

MANUAL

BEFORE

YOU

PROCEED

WITH

THE

ASSEMBLY

OF

nus

KIT.

MODEL

T-65

INSTRUCTION

CORRECTIONS

359

PAGE

19-5TEP

85:

-

CHANGE

1IRED-BLACK

(125V-PR I

MARy}'1

TO

/"RED-GREEN

(/25V-PRI14ARy)t1"

CHANGE

~

"RED-BLACK

LEAD

TO

CAl"

TO

"RED-GREEN

LEAD TO

CAlli.

PAGE

21-STEP

97:~ANGE

"REO-W/GREEN

TRACER!!

TO

BROWN-

RED".

PAGE

21-STEP

~

CHANGE

"V/H

I

TE-BLACK"

TO

tlBROWN-BLACK

It

..

1258

, .

•

T-65

FEATURES

AND

SPECIFICATIONS

TESTS: Low

power,

medium

power,

and

power

type

transistors,

NPN

and

PNP

types.

TESTS:

Crystal

diodes

for

forward

(Di) and

reverse

(Dr)

current

in

comparison

with

manufacturer'S

specifications.

ALL TRANSISTOR TESTS READ ON ONE

0-100

METER

SCALE:

Direct

test

limits

for

each

transistor

listed

on

the

accompanying

data

sheets.

TWO PANEL-MOUNTED TRANSISTOR SOCKETS:

Supplemented

by a

universal

alligator-terminated

cable

to

provide

connection

facilities

for

all

transistors.

METER:

Large,.

easy

to

read

clear-plastic

cased

meter.

Accurately

balanced

and

factory

calibrated

to

within

±

2%.

Rugged

double-jeweled

D'

Arsonval

type,

produced

by

the

PACE

Division

of

Precision

Apparatus

Co., Inc.

MICRO-LINE ADJUSTMENT:

Read

directly

on

meter.

Continuously

variable

heavy-duty

line

voltage

control.

TEST

CIRCUITS

COMPLETELY

TRANSFORMER-ISOLATED FROM POWER LINE:

Assures

utmost

safety

to

operator

and

instrument.

Transistor

Tests,

Ranges

MODEL

T-65

SEQUENTIALLY TESTS TRANSISTORS

AS

FOLLOWS:

(1)

SHORTS:

Collector-to-Emitter

and/or

Base

shorts

indicated

for

each

transistor

on the

data

sheets

by a

limit

meter

reading.

Automatic

maximum

range

prevents

damage

to

meter.

(2)

lebo:

Collector

cut-off

current,

from

2

microamperes

on

the

first

meter

range

to 50

milliamperes

full

scale

reading

in 5

separate

ranges:

0-100

Microamperes,

Full

Scale

0-500

Microamperes,

Full

Scale

0-2500

Microamperes,

Full

Scale

0-10

Milliamperes,

Full

Scale

0-50

Milliamperes,

Full

Scale

Proper

collector

voltage

has

been

predetermined

for

each

transistor

and

is

automatically

panel-

selected

to one of 17

available

potentials

between

the

range

of

.5V DC to 100V DC.

(3)

L·

Leakage

test

(Collector-to-Emitter

current,

with open

Base)

provides

an

intermediate

reading

for

maximum

accuracy

of

subsequent

Gain

test.

(4) GAIN:

Measures

direct-reading

beta

in

two

ranges

from

a low

reading

of 2 (GXI

range)

to a

maximum

reading

of

500

(GX5

range)

with

predetermined

selection

of 5

Base

current

injection

values

as

follows:

0-50-200-500

Microamperes

0-2-5

Milliamperes

Crystal

Diode

Tests

ALL DIODES ARE CHECKED FOR FORWARD

AND

REVERSE CURRENT AT PREDETERMINED

APPLIED

VOLTAGES.

FOR DIODE REVERSE (Dr) TESTS:

Current

ranges

from

2

microamperes

(lowest

reading)

up

to

50

milliamperes

are

automatically

panel-selected

at

anyone

of 17

predetermined

voltages

(from.

5 to 100

volts).

FOR DIODE FORWARD

(Df)

TESTS:

Current

ranges

from

5

milliamperes

to 500

milliamperes

are

provided

at

anyone

of

17

predetermined

voltages

(from.

75

to

75

volts).

©

Paco

Electronics

Co.,

Inc.

1958

t.:

GENERAL

KIT

CONSTRUCTI

ON

I

NFORMA

TI

ON

INTRODUCTION

The PACO

kit

you

have

just

purchased

is

a high

quality

instrument

and

when

assembled

and

used

according

to

the

instructions

in

this

manual,

will

provide

many

years

of

trouble-free

service.

Therefore,

the

first,

and

we

feel,

most

valuable

advice

we

can

offer

in

this

manual

is

to

work

carefully

and

patiently.

By

doing

so,

you

will

experience

more

satisfaction

in

your

new

instrument,

and

greater

confidence

in

your

ability.

THE MANUAL

We

suggest

that

you

spend

a

little

time

NOW

and

read

this

entire

manual

thoroughly

before

starting

actual

construction

of

the

kit.

This

will

familiarize

you

with

the

contents

and

general

procedure

to

be

followed.

The

step-by-step

instructions

will

help

you

assemble

the

instrument

with a

minimum

possibility

of

error.

Further

assistance

may

be

gained

from

using

the

large

folded-in

diagrams

supplied

with

this

manual.

These

are

enlargements

of the

smaller

size

figures

referred

to in

the

step-by-step

instructions.

They

should

be

attached

to

the

wall above

your

work

bench

for

easier

reference.

We

advise

you to

keep

this

manual

after

the

kit

has

been

constructed,

for

future

assistance

in

using

and

maintaining

your

PACO

instrument.

UNPACKING

We

cannot

stress

too

strongly

the

need

for

exercising

care

throughout

these

instructions.

This

is

especially

true

now

as

you

unpack

the

kit.

Parts

may

become

easily

damaged

through

carelessness

here.

Do

not

throwaway

any

packing

materials

until

all

parts

are

accounted

for.

Each

part

should

be

checked

against

the

parts

list

at

the

back

of

the

manual

to

make

certain

all

parts

are

present

and

correct

as

to

value

and

type. The

color

code

chart

at

the

back

of

this

manual

will

assist

you

in

identifying doubtful

parts.

Please

notify

us

promptly

if

any

shortage

or

erroneous

part

is

discovered.

Return

the

inspection

slip

with

your

letter

to expedite handling.

Keep in

mind,

however,

minor

differences

in

some

parts

do not

indicate

an

error.

A .05

mfd

capacitor,

for

example,

may

sometimes

be

found in the

kit

where

a .047

mfd

is

called

for

in

the

parts

list.

Such

substitutions

are

checked

carefully

before

they

are

made

and

you

can

be

assured

they

will

work

satisfactorily.

The

registration

card

accompaning

each

PACO

kit

MUST

be

filled

in and

returned

to

the

company

immediately

after

purchase.

Our

warranty

applies

only to

regiS-

tered

instruments.

TOOLS REQUIRED FOR ASSEMBLING

AND

WillING PACO KITS

Only

standard

tools

are

required

in

constructing

PACO

kits

- a good quality

soldering

iron

with a

small

tip

(50

or

60

watts),

a

pair

of

long-nose

pliers,

a

pair

of diagonal

or

side-

cutting

pliers,

a

small

assortment

of

screwdrivers,

and

a few

small

end-wrenches

or

a

small

adjustable

wrench.

Screwdriver

handled

nut-drivers

may

be

used

in

place

of

wrenches

in

most

cases.

ASSEMBLING

AND

WillING

Proper

positioning

of

wires

and

parts

in

this

instrument

is

quite

important,

and

changes

may

affect

operation.

Follow

the

diagrams

closely

and

you

should

encounter

little,

if

any

diffi-

culty,

for

the

layout

has

been

thoroughly

prechecked

and

tested

for

best

results.

Page

2

When wiring,

remove

only

about

1/4

inch

of

insulation

from

the

ends

of hook-up

wire.

Ex-

cessive

removal

of

insulation

may

result

in

the

exposed

wire

shorting

to

nearby

terminals

or

wiring.

If

the

wire

has

a

brown,

baked

enamel

coating

(transformer

leads,

for

example)

be

sure

to

scrape

the

enamel

off

with

sandpaper

or

a knife to

expose

the

copper

wire

before

making

a

terminal

connection.

Leads

on

parts

(resistors,

capacitors,

etc.)

should

be

trimmed

to

proper

length

before

mounting. Do not

cut

leads

too

short!

All

parts

should

fit

between

designated

points without

strain.

SOLDERING

We

wish

to

emphasize

at

this

point

the

extreme

importance

of

proper

soldering

technique.

Much

engineering

skill

and

effort

has

gone into

making

your

PACO

instrument

capable

of high

quality

performance.

To

obtain

this

performance,

good

solder

joints

are

essential.

Solder,

an

alloy

of

tin

and

lead,

is

applied

to an

electrical

connection

to

provide

a

permanent

electrical

borfd

between

the

wires

and

terminals

being

joined.

It

also

seals

the

connection

from

air

and

moisture

and

prevents

formation

of

corrosion,

which

produces

undesirable

resistance

between

the

joined

conductors.

It

you have

had

little

or

no

with

soldering,

we

suggest

you

read

this

section

carefully

and

spend

some

time

practicing

with

an

old

tube

socket

or

terminal

strip

and

some

scrap

pieces

of

wire,

before

doing any

soldering

on

your

kit.

Soldering

is

not

difficult.

Just

observe

a few

simple

rules

and

precautions

and

spend

a

reasonable

amount

of

time

practicing

to

attain

a

workable

degree

of

soldering

skill.

Following

are

some

of the

more

important

points

to

be

remembered:

1. Only good

quality

solder

with a

non-corrosive

(rosin)

core

should

be

used:

THIS

IS

IMPORTANT!

ALL

GUARANTEES ARE VOIDED AND WE

WILL

NOT

REPAIR

OR SERVICE

ANY

PACO INSTRUMENT WIRED WITH ACID CORE SOLDER OR PASTE FLUX.

Acid

core

solder

and

paste

fluxes

are

primarily

used

in

sheet

metal

and

plumbing

work

where

a

strong

"cutting"

agent

is

needed

to

remove

heavy

deposits

of

dirt

and

corrosion

while

soldering.

The

acid

itself

is

very

corrosive,

however,

and

any

remaining

deposits

must

be

quickly

removed

after

soldering.

IT

SHOULD BE OBVIOUS,

THEREFORE,

THAT

ANY

AT-

TEMPT

TO USE THIS

TYPE

OF

SOLDER

ON

ELECTRICAL

EQUIPMENT

WOULD ONLY

RESULT IN MUCH DAMAGE TO CIRCUIT COMPONENTS AND WIRING.

To

remove

any doubt

about

the

solder

you

use,

we

suggest

you

make

certain

the

roll

you

buy

has

been

clearly

labeled

for

television

and

radio

use.

2.

Use

a good

soldering

iron,

one

which

has

the

correct

wattage,

for

the

work

you

are

doing.

For

soldering

to

printed

circuit

boards

and

certain

miniaturized

components

such

as

transistors,

a

pencil-type

iron

between

25 to

50

watts

is

recommended.

Most

other

work

may

be

adequately

performed

with

an

iron

in

the

50-SO-watt

range.

Heavier

wattages

(100-250

watts)

may

sometimes

be

useful

for

certain

jobs,

such

as

soldering

to

chassis,

but

such

oc-

casions

will not

arise

too often. As

for

the

type

of

iron,

you

may

use

either

the

standard

diamond

or

"chisel"

tip,

or

one of

the

newer

"solder

guns".

Whichever

you

choose,

remember

to

keep

the tip

properly

tinned

according

to

manufacturer's

instructions.

It

should

have

a

"bright"

ap-

pearance,

and

be

free

of

excess

solder.

(See

illustration.)

An

old

rag

or

piece

of

steel

wool

should

be

used

to wipe

the

hot

tip

clean.

..

CLEAN,

WELL-TINNED

SOLDERING

IRON.

Page

3

LEAD

BEl

NG

CRIMPED

SECURELY

AROUND

TERM

I

NAL

WITH

LONG

NOSE

PLI

ERS

MAKING

GOOD

MECHANICAL

CONNECTION

PRIOR

TO

SOLDERING

LEADS:

SECURELY

CRIMPED

TO

TERMI

NAL

SOLDERING

A

CONNECTION

IICOLD

II

SOlDERED

CONNECTION

GOOD

SOlDERED

CON~IECTI

ON

WRONG

RIGHT

EXAMPLES

OF

GOOD

AND

BAD

SOLDER

I

NG

Page

4

SOLDER

I

NG

I

RON

PLIERS:

HELD

AROUND

LEAD

IN

THIS

MANNER,

WILL

CONDUCT

HEAT

AWAY

AND

PROTECT

COMPONENT.

PROTECT

I

NG

SMALL

COMPONENTS

FROM

OVERHEATING.

•

3.

Before

soldering,

be

sure

terminals

and

leads

are

free

from

wax,

dirt,

or

corrosion.

Solder

will

not

adhere

to

dirty

or

corroded

metal.

Radio

and

television

solders

are

supplied

with a

rosin

flux

core.

Rosin

flux

"cuts"

or

removes

most

of

the

dirt

or

corrosion

from

metal

surfaces

being

joined

and

allows

the

solder

to

adhere.

Rosin,

however,

is

a

relatively

mild

"cutting"

agent

and

will

not

completely

remove

heavy

deposits

of

dirt,

wax,

or

corrosion.

There-

fore,

before

applying

solder,

all

leads

and

ferminals

which

are

not

bright

and

clean,

must

oe

scraped

clean

using

a knife

or

single-edged

razor

blade.

4. Do

not

rely

on

solder

alone

for

mechanical

strength!

Make

~

good

mechanical

con-

nection

before

soldering

by

crimping

the

wires

and

leads

securely

to

the

terminals

with

your

pliers.

(See

illustration.)

All

stranded

wire

should

be

"tinned"

with

solder

before

connecting.

("Tinning"

means

lightly

soldering

the

wire

end

itself

before

crimping

it

to

its

connecting

pOint.)

Tinning

stranded

Wire

facilitates

crimping

this

type

of

wire

to

terminals,

and

also

prevents

small

wire

strands

from

breaking.

Tinning

leads

on

components

like

resistors

and

capacitors

is

not

always

necessary,

but

is

still

advisable

because

it

helps

the

solder

adhere

more

readily

to

the

connection.

5. To

properly

make

a

solder

connection:

a.

Apply

iron

to

joint,

and

hold

until

joint

heats

sufficiently

to

melt

solder.

b. Apply

solder

to

joint

and

iron

simultaneously,

allowing

solder

to

flow

smoothly

and

freely

around

and

into

connection.

Do

not

just

melt

drops

of

solder

on to

the

joint.

solder

must

FLOW

into

the

joint

to

be

effective.

Keep

in

mind

that

solder

will

not flow

smoothly

into a

connection

unless

the

jOint

itself

has

been

heated

enough

to

melt

the

solder.

Unless

this

is

done,

"cold"

or

high

resistance

joints

often

result.

(See

illustration.)

You

will

notice

that

"cold"

solder

jOints

have

a

dull

and

"grainy"

ap-

pearance.

A

good

solder

connection

will

present

a

smooth

and

"shiny"

appearance.

(See

illus-

tration.)

Other

causes

of

"cold"

joints

are

melting

drops

of

solder

on

the

joint

with

the

iron;

leads

and

wires

not

sufficiently

cleaned

of

wax,

dirt,

and

corrosion;

and

moving

leads

before

the

solder

has

"set"

or

hardened.

When

in

doubt

as

to

the

condition

of

a

joint,

it

may

be

tested

by

moving

the

leads

slightly

and

observing

whether

they

ar'e

loose.

Loose

leads

indicate

a

"cold"

connection. When

correcting

a

"cold"

solder

condition,

always

apply

new

solder.

As a

rule,

simply

reheating

a

joint

will

not

properly

do

the

job.

When

using

your

iron,

avoid

applying

excessive

heat,

as

this

could

damage

small

compon-

ents

and

insulation

on

wires

connected

to

the

joint.

Components

can

be

protected

from

over-

heating,

by

grasping

the

lead

between

the

body of

the

component

and

the

jOintwith

your

long-nose

pliers.

The

pliers

will

then

conduct

most

of

the

heat

away

from

the

component.

Page

5

........

Avoid

excessive

use

of

solder

when

making

a

connection,

especially

when

soldering

to tube

socket

pins

and

switch

terminals.

This

often

results

in

shorted

conditions

between

adjacent

terminals

or

wiring.

Also,

switches

will

be

ruined

if

solder

flows into

switch

contacts.

An

ex-

ample

of

unnecessary

"piling

on"

of

solder

is

shown

in

the

illustration.

THE

PACO

WARRANTY

PACO

Electronics

Co.,

Inc.,

hereafter

referred

to

as

the

Company,

guarantees

all

parts

supplied

with

any

PACO

kit

to

be

free

of

defects

in

material

and

workmanship

under

normal

use

and

service

for

ninety (90)

days

from

purchase

date.

The

Company's

obligation

under

this

warranty

is

limited

to

those

parts

which

are

returned

transportation

prepaid

with

prior

per-

mission

of

the

Company,

and

in

the

judgment

of

the

Company

are

defective

under

terms

of

this

warranty.

This

warranty

is

in

lieu

of

all

other

warranties,

and

the

Company

neither

assumes

no'"

authorizes

any

other

person

to

assume

for

them

any

other

liability

in

connection

with the

sale

of PACO

kits.

We

urge

the

assembler

to follow

the

instructions

in

this

manual.

The

Company

assumes

no

responsibility

for

any

damages

or

injuries

sustained

in

assembling

or

operating

PACO

instruments.

All

prices

and

specifications

are

subject

to

change

without

notice.

The Company

reserves

the

right

to

discontinue

instruments

and

alter

specifications

at

any

time

without

incurring

any

obligation

to

incorporate

new

features

in

PACO

instruments

previously

sold.

The

registration

card

accompanying

each

PACO

kit

MUST be

filled

in

and

returned

to

the

Company

immediately

after

purchase.

This

warranty

applies

only to

registered

instruments.

INFORMATION REGARDING THE PACO WARRANTY

All

material

and

parts

supplied

with

PACO

kits

have

been

carefully

selected

to

meet

design

requirements

and

should

perform

satisfactorily.

However,

on

occasion,

improper

in-

strument

operation

may

be

traced

to a

faulty

tube

or

component.

Should

replacement

of a

part

be

necessary,

write

directly

to PACO

Electronics

Co., Inc.,

and

supply

the

following

inform~tion:

1. Identify

the

model

and

serial

number

of

the

kit

in

which

the

part

is

used.

2. Identify

the

questionable

part

thoroughly.

Use

part

number

and

description

as

given

in

the

parts

list.

3.

Completely

describe

the

nature

of

the

defect

or

your

reason

for

requesting

a

replace-

ment.

Please

do

not

return

the

part

in

question

until

we notify you.

Do

not

tamper

with

the

com-

ponent,

as

this

voids

our

warranty.

When

returning

tubes,

pack

them

carefully

to

avoid

breakage

in

shipment.

Broken

tubes

will

not

be

replaced.

Parts

broken

or

damaged

through

carelessness,

misuse,

or

improper

in-

stallation

by

the

kit

builder

likewise

will

not

be

replaced.

'SERVICE

POLICY

PACO

Electronics

Co.,

Inc.,

offers

its

full

cooperation

and

assistance

to

help

you

obtain

the

specified

performance

from

your

instrument.

We

maintain

a

complete

Service

Department

with

who!D

you

may

correspqnd

in

the

event

you

continue

to

experience

operational

difficulties

with

your

completed

instrument.

We

will

inspect

and

repair

this

TRANSISTOR

AND

CRYSTAL

DIODE

TESTER

Kit

for

a

minimum

service

charge

of

$4.00

plus

cost

of

parts,

provided

this

in-

strument

has

been

constructed

and

completed

according

to

instructions

in

this

manual.

This

special

repair

service

is

available

for

one

year

from

purchase

date.

Repair

service

for

PACO

instruments

that

have

been

used

longer

will

be

available

for

PACO

owners

at

most

economical

charges.

Instruments

not

entirely

completed

or

that

have

been

modified

in

design

will

not

be

accepted

for

repair.

Instruments

showing

evidence

of the

use

of

acid

core

solder

or

paste

fluxes

will

be

returned

not

repaired.

Instruments

for

repair

or

service

MUST

be

returned

to

us,

transportation

charges

PRE-

PAID,

according

to

the

following

shipping

instructions.

Page

6

SHIPPING

INSTRUCTIONS

When

returning

a PACO

instrument,

be

sure

all

parts

are

securely

mounted.

Always

pack

carefully

in

a

rugged,

OVERSIZED

container,

preferably

wood,

using

a

generous

supply

ofpadding

suchas

excelsior,

shredded

paper,

or

crumpled

newspaper.

Do not

ship

in

the

original

kitcarton,

as

this

carton

is

not

large

enough

or

adequate

for

safe

shipment

of

the

completed

instrument.

Attach

a

tag

to the

instrument

giving

your

name,

address,

and

trouble

experienced.

Never

return

an

instrument

unless

it

is

accompanied

by

a

full

explanation

of

difficulties

encountered.

The

more

explicit

the

detailS,

the

more

rapidly

your

instrument

can

be

handled

and

processed.

Please

ship

Via

Railway

Express

PREPAID

and

address

to:

PACO ELECTRONICS

CO.,

INC.,

70-31 -

84th

STREET

"

GLENDALE

27,

L.I.,

N.Y.

ATT:

SERVICE DIVISION

A FRAGILE

label

should

appear

on

at

least

four

sides

of

the

carton.

Return

shipment

by PACO

will

be

byRailway

Express

COLLECT,

including

repair

service

charges,

unless

otherwise

requested.

Please

note

that

a

carrier

cannot

be

held

liable

for

damage

in

transit

if,

in

HIS'OPINION,

packing

is

insufficient

I

STEP-BY-STEP

ASSEMBLY

These

instructions

were

prepared

by

skilled

technicians

and

technical

writers

from

ex-

perience

gained

by

actually

constructing

this

PACO

kit.

Therefore,

you

will

find

them

arranged

in

a

logical

sequence,

with

every

consideration

given

to

the

practical

aspects

of

kit

assembly.

We

fe~l

the

instructions

offer

the

fastest

and

best

method

of

assembling

your

PACO

kit.

We

urge

you to

read

each

step

thoroughly

and

understand

the

step

completely

before

per-

forming

it.

This

will

help

you

avoid

errors.

We

also

suggest

you

use

the

check

space,

(

),

to

indicate

completion

of

each

step.

This

will

help

you

avoid

omissions.

Many

kit

builders

also

cross

out,

with a

colored

pencil,

each

wire

and

component

on

the

wiring

diagram

after

installation.

The

"(Solder)"

and

"(Don't

Solder)"

designations

in

the

instructions

are

self-explanatory

and

should

be

complied

with. When you

see

"(Don't

Solder)"

after

a

step,

you

should

only

crimp

the

lead

to

the

terminal

and

proceed

to

the

A

later

step

will

indicate

when

all

leads

have

been

connected

to

this

terminal

and

soldering

must

be done.

All

parts,

after

being

checked

against

the

parts

list,

should

be

placed

where

they

are

readily

available

and

will not be

lost

or

damaged.

You

may

find

it

advantageous

to

group

parts

and

place

them

in

suitable

containers.

To

aid

you

in

placing

components,

a

system

of

alphabetical

and

numerical

coding

has

been

devised.

Certain

components,

such

as

switches

and

controls,

have

been

coded

with

letter

de-

signations

relating

to

the function

of

the

component.

For

example,

"C"

indicates

a

control

and

"S"

indicates

a

switch.

In

kits

having

more

than

one

component

of

this

type,

distinction

is

made

between

them

by

letters

added

in

alphabetical

sequence.

For

example,

"CA"

indicates

one

con-

trol,

"CB"

indicates

a

second

control,

etc.

All

resistors

(except

controls)

have

been

coded

with

an

"R"

designation

(RI,

R2,

etc.),

These

designations

appear

on

the

schematic,

in

the

parts

list,

and in

the

step-by-step

instructions

and

wiring

diagrams.

Other

components,

such

as

tube

sockets

and

terminal

strips,

have

been

assigned

single

letter

designations

having no

particular

reference

to

function.

These

deSignations

are

usually

assigned

in

the

order

in

which

the

component

is

installed,

and

will

not

always

be

the

same

in

other

kits.

For

example,

"A

II

may

indicate

a

tube

socket

in

one

kit

and

perhaps

a

terminal

strip

or

other

component

in

another

kit.

Numbers

have

been

assigned

to

terminals

on

the

various

components.

Thus,

"SA2"

indi-

cates

terminal

2

of

switch

"SA

",

''8B3''

indicates

terminal

3 of

switch

"SB",

etc.

You

are

now

ready

to

begin

constructing

your

PACO TRANSISTOR

TESTER.

Page

7

-.

PRE-WIRING

OF

FUNCTION

SELECTOR

SWITCH

REFER

TO

FIGURE

1.

NOTE:

Before

wiring,

be

sure

the

switc.h

rotor

segmeqts

are

positioned

with

respect

to

the

switch

contacts

as

shown

in

Figure

1.

Also

note

red

mark

adjacent

to

terminal

43.

This

will

assist

you

in

locating

the

switch

terminals.

@

RED

MARK

640J1.,I%

SF

,

SF

®

640.1\.,1%

RED

MARK

@

@ 640On.,

1%

560.1\.

® 27.1.n..,I% @

27.1..1\.,1%

®

560.n..

FIGURE

1

(SEE

BLOW-UP

NO.2)

(1/)/

1.

Connect

a

length

of

solid,

bare

hook-up

wire

(use

spaghetti)

from

SF

1 (Solder) to

SF

8

(Don't

Solder).

( , ) 2.

Connect

a

length

of

solid,

bare

hook-up

wire

(use

spaghetti)

from

SF

3

(Don't

Solder)

to

SF

10

(Solder).

(;

.)

3.

Connect

a

length

of

solid,

bare

hook-up

wire

(use

spaghetti)

from

SF

4

(Solder)

to

SF

6

(Don't

Solder).

(

I')

4.

Connect

a

length

of

solid,

bare

hook-up

wire

(use

spaghetti)

from

SF

7

(Don't

Solder)

to

SF

32

(Don't

Solder).

Be

sure

to

connect

this

wire

to

both

lugs

at

SF

7.

( v/)

5.

Connect

a

length

of

solid,

bare

hook-up

wire

from

SF

12 (Solder) to

SF

24

(Solder).

Be

sure

to

connect

this

wire

to

both

lugs

at

SF

12.

(

~

.) 6.

Connect

R5

(27.10,

1%

wire-wound

precision

reSistor)

from

SF

35 (Don't

Solder)

throughSF

30

(Don't

Solder)

to

SF

18 (Don't

Solder).

Now

solder

SF

30. (Use

extra

care

to

make

a good

solder

joint

at

SF

30.)

Carefully

position

this

resistor

away

from

contacts,

metallic

deck

spacer,

and

moving

parts

of

switch.

(

,),r

7.

Connect

R3

(6400,

1%

carbon

precision

resistor)

from

SF

35 (Solder) to

SF

46

(Solder).

(,:

-)

8.

Connect

a

length

of

solid,

bare

hook-up

wire

(use

spaghetti)

from

SF

47 (Solder)

to

SF

31

(Don't

Solder).

Page

8

paco T-65 User instructions

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