RCA Radiola III Instruction Manual

Radiola

INTRODUCTION

The

RADIOLA

The

RADIOLA

ing

set

especially designed for broadcasting reception.

set

especially designed for broadcasting reception.

two WD-11 Radiotrons which are arranged

and

audio amplifier.

and

audio amplifier.

that

a choice of two types of tuning circuit

that

a choice of two types of tuning circuit

a sensitive single tuning circuit

tion in

circuit for use when interference is present.

mounted below

material

cable is provided,

thus,

on

Material Furnished

ing material:

the

Radiola Senior, while

the

Radiola Senior, while

and

is enclosed in a solid mahogany case. A flexible

and

is enclosed in a solid mahogany case. A flexible

the

set

the

Under

RADIOLA

Two RADIOTRONS,

One Telephone Headset.

may

set

may

floor or elsewhere

the

III

is a high grade regenerative radio receiv-

III

is a high grade regenerative radio receiv-

Four

antenna

Four

antenna

that

an

attractive

an

attractive

by

be placed on a table while

name of

RADIOLA

III

Receiving Set as . described,

III

Receiving Set as . described,

horizontal

which all

out

of

the

out

of

the

EQUIPMENT

Type

III

to

binding posts are provided so

has made

the

other

the

other

panel

battery

way.

III,

WD-l1

connections are made ,

the

there is included

,

It

uses

It

uses

operate as a detector

may

be had. One is

may

be had. One is

an

excellent reputa-

an

excellent reputa-

is a more selective

The

apparatus

The

apparatus

of durable molded

batteries are placed

the

follow-

the

follow-

is

Additional Material Needed

To complete a new installation,

also be needed:

Complete Antenna

as follows:

"A"

Battery for filament heating, consisting of from four

"A"

Battery for filament heating, consisting of from four

six

172

six

172

the

of

4

to

6 Eveready RadiQ

to

6 Eveready RadiQ

4

to

6 Burgess

to

6 Burgess

4

to

6 Ray-O-Vac "An

4

to

6 Ray-O-Vac "An

and

volt

dry

volt

dry

following:

"A"

Ground Outfit,

cells connected in parallel, such as one

"A"

Batteries

Dry

3

the

following material will

the

following material will

A,

Band

A,

Band

Batteries

'fI,

Batteries

6.

'fI,

7111.

'fI,

7111.

'fI,

1211.

C Batteries

to

4 to 6

4

to

or

any

dimensions of

A

two

volt (one cell, lead type) storage

"B"

Battery sisting of two or

of one 45 volt

2

Eveready 2 Burgess 2 Ray-O-Vac 2 Ace

1

Eveready 1 Burgess 1 Ray-O-Vac or

any

listed

are

of

the

mediate size

"e"

Battery of one 1 one of

Y2

the

volt

cells of

Radiola

Manhattan

6 Columbia

other

2Y2

inches diameter

for supplying power

fI,

115

make

22Y2

fI,

766

2156

fI,

Plate

Red

Ignitor

of good

volt

plate

Plate

2151

Batteries.

battery,

Plate

III

Seal

Dry

Cells

fI,

6

Dry

Cells.

dry

cell having approximate

by

6 inches high.

to

the

plate

batteries connected

such

as

Batteries.

Batteries

Batteries.

fI,

2445.

battery

plate

one of

may

circuits, con-

the

or

fI,

767

Plate

Battery.

fI,

2306

Plate

Battery.

fI,

2301

Plate

Battery.

other

good

make

large size which

may

also

be

of radio

are

used.

plate

battery.

most economical

but

for producing a negative grid potential, consisting

dry

cell.

This

may

the

"An

Battery

conveniently

and

this is recommended.

be

the

be

used.

in

series

following:

The

ones

the

inter-

same

as

Location-The possible such placed on a small or elsewhere

to

the

as a water

out

incoming wire from

pipe, should

table

of

Antenna

Outdoor

an

outdoor above proach in a space above free as possible from

Type-In

antenna

the

ground.

them

as nearly as possible.

the

INSTALLATION

RADIOLA

so

the

way

general, best results will be obtained with

from

If

these dimensions

tops

of surrounding buildings

other

objects.

III

should be placed

the

be

not

far away.

that

the

batteries

.

SO

to 150 feet long

The

It

should

4

antenna.

may

and

cannot

antenna

not

as

A good ground,

The

set

rest on

20

or

more feet

be

secured, ap-

should be located

and

in

a space as

be

touched

near

may

the

by

as

be

floor

any

Radiola

other

object

than

the

other

object

than

apply

to

the

apply

antenna

sible

any

electric light

any

electric light

distant

strong

in a

ments

Indoor

tant

20

to

18

to

18

to

where

suitable for use in

not

give satisfactory results

not

give satisfactory results

having

Ground

A good ground is

ground is a good electrical connection

not

convenient, a connection

not

convenient, a connection

system

should

or

metal

or

metal

feet, preferably where

should

or

securely held

or

securely held

pipe

must

pipe

must

ing

the

ing

the

ground, for instance,

reception.

lead-in, which should preferably be a continuation of

to

the

lead-in, which should preferably be a continuation of

wire

to

wire

to

the

to

reception, satisfactory results

40 feet of

receiver.

the

receiver.

from

them

from

them

and

of

the

National

of

the

National

Type-For

22

B & S gauge)

22

B & S gauge)

as

high

as

up

high

up

metal

lath

metal

lath

will usually serve almost

be

avoided.

be

avoided.

rod

may

rod

may

be

made

be

made

be

scraped

be

scraped

ground

antenna

the

antenna

eliminate joints,

The

and

other

and

other

and

from

and

from

durable

Electric Code.

local reception,

ordinary

as

possible.

as

possible.

apartment

under

as

If

be

driven

be

driven

the

with

a ground clamp

with

a ground clamp

by

gripping

by

gripping

or

clamp. Usually, connecting

to

insulators.

antenna

wires

other

manner

cotton

covered

cotton

covered

strung

nothing

around

This

houses

in

the

plaster.

the

plaster.

necessary

to

into

soil is moist.

under

filed

until

filed

until

both

water

both

water

and

antennae.

in accordance

type

steel frame buildings

as

the

as

well. Connections

as

well. Connections

of

this

of

this

the

a screw

clean

and

III

The

same precautions

The

same precautions

should

should be

run

as directly as pos-

run

as directly as pos-

at

right

at

right

if practicable,

and

in some cases for dis-

and

in some cases for dis-

may

be

may

be

magnet

a picture moulding

of

antenna

of

antenna

or

similar buildings

or

similar buildings

a good

to a water

steam

nature

ground

The

to

which

to

which

or

and

steam

at

It

should

It

should

with

secured

or

bell wire

or

bell wire

is particularly

antenna.

pipe.

or

hot

or

to a depth

nut.

water

hot

water

is available, a pipe

to a depth

ground connection

the

wire is soldered

the

wire is soldered

In

bright

before

bright

before

to

more

to

more

pipes, will improve

angles

least

15

least

15

be

erected

be

erected

the

require-

the

require-

by

(about

or

but

or

in

or

in

The

If

this

If

this

heating

to

gas pipes

to

gas pipes

of several

any

case

any

case

attach-

than

the

to

feet

using

else-

will

ones

best

is

the

one

Connections

Three

The

battery

controls

fication will

"A"

supplies

the

separate

battery

grid

be

batteries

heats

the

heats

the

power

the

power

potential

undistorted

are

filament of

to

the

plate

to

the

plate

of

the

amplifier

of

the

amplifier

and

the

and

the

5

needed

circuits

"B"

to

operate

to

operate

the

Radiotrons,

the

Radiotrons,

and

Radiotron

battery

the

will

Radiola

"C"

so

that

so

that

last

longer.

last

longer.

III.

the

"B"

the

"B"

battery

ampli-

RCA Radiola III Instruction Manual

Specifications and Main Features

Frequently Asked Questions

User Manual