orior RF. Amplification
AVERAGE Rf.
FORMERS
Basis of Super-Heterodyne
AMPLIFICATION AT
9HONE WAVELENGYHS
USING R.F’. TRANS‘
R-F. AMDU FlCATlON
AT LONG WAVES
poms LONG “have
R! TRANSFORMERS
\x \V“}&\WW\XW\\\)\\\\"KN .\‘..
a suptrhctcrmlync any~
by do we have two detec-
d what does the “interme-
zier" do '.’
clue better than our usual
cuency amplifiers?" These
‘ re asked very often by
itcture at the head or our
tells the whole story or the
the superhetea-odyne. 8.1.
“e “ill have to explain the
Somewhat.
nrst place. the superhctero-
nothing but a. type of radio
3: amplifier. The value ol‘
requenc)‘ amplification is
-' well-known to the reader.
as in amplifying radio ire-
energy bei'ore the radio l’re-
naches the detector, and
lies audible in the detector
that 'Werc‘ preiiously inaudi-
Ii
'tcrhetcrodyne was develop—
l;~' and solely tor the reason
is duhcuit to get any great
of radio frequency amplifi-
at short waves—that is.
- am 600 meters down. The
c 30 the less amplification
A: long “avelcngths such
to 15,020 Inctcrs, it is coni-
casy to build a radio {re-
nip.tlier that “ill gin: good
:tion. The comparatii c
01‘ the two black columns
-w much more amplifica-
can get on lung \vnve-
than we can get on short
' -jor Armstrong in develop-
superheterodyne simply
apparatus for changing
s to long waves so that it
possible to make use of
er amplification possible at
es.
resentative superheterodyne
onslst or the following: a.
ave detector. an oscillator.
age of “intermediate fre-
amplification" and a second
Now what we have is
.
Why is a. supn
PARATI'VE RADIO FREQUENCY AMPLI'r’
‘ TION AT LONG AND SHORT WAVELENGTHS
this: The first two tubes (the short
”wave detector and ‘the oscillator)
constitute the wave-changing ap-
paratus that changes the phone
wavelength to a. long wave (usually
either 3.000. 6,000 or 10,000 meters).
From then on the superheterodyne
is simply Ia. long-wave radio fre-
quency amplifier and a long-wave
detector. There is nothing mysteri—
ous about the "intermediate ampli-
fier." It is nothing more or less
than a long-wave radio frequency
and mfdio frequency. . _
Somebody has inquired to the ef-
fect that it you are amplifying volt-
ages that were originally too small
to operate a. detector. how is it that
they operate the first shortwave
detector? ~Part o! the answer is
that many signals which are strong
enough to operate the short-wave
detector are still too faint to be au-
dible. so that it is desirable to am-
plit‘y them further at the long wane
and then detect them again. The
other half of the answer that
many signals do not opera the
first detector. and are therefore
never received. The manufacturers
are quite well aware of this fact. and
many superhctcrodyncs now incor—
porate one or two stages of short-
Wave radio frequency amplification
before the first detector. ~
One listener has tried putting a
two-stage short-wave neutrodync
‘tuncd r.f. amplifier before the first
detector of a. superhetcrodync .with
very worthwhile results. 0! course
the addition 0! a. tuned short-wave
amplifier adds a. number of controls
to the set. For the sake of slmpll~
city of control, therefore. the more‘:
common practice seems to be to
make the initial shortwave r.f. arn_-
pllfier of a. type using fixed trans-
formers, whlch does not give as
much amplification. but at the slime
time does notcomplicate the opera-
tion of the entire set so much.
Copyright. 1924. by The American
Radio Relay League. Inc.
\Vave .
length
in meters
430
41-")
and C;t_v
)loiill‘t‘al
Montreal
_--.--.og.-...
....._... .....
...-.....a....
.....o..-.-.
......1-nu-un.
i‘ol‘tlar‘nl, Ore. ......:... 49:)
Les Angzl‘cs .--...p...... 395
.‘nn l‘rancisco ........... 23
LU“; 'md. Calif. .......... 312
I """ll ............. 270
:' ........:...... 546
ego ...I.........‘... 536
. .‘ort “forth ......-..... 476
5; ti :ield. Mass. ;......_., 337
.. I'lztsburgn . .....l...... 462
l. l‘lllladelphia. . . .:.:
. K..nsas City ... 7
. .\L\Y York . ._,..._._.
. Pni:adelphia
'ctroit ,. . . . . .;
ladelphia . . ... . .zu . - . .
.~lv-iford. Mass. .._. .u. . . . .
A. ll' ‘las . . . . . .... .h. n . .
' .zzlo
".oncctady
.\, 1053. City. Ia. a’m:oli'o[fl
>. Li-uisville, Ky. r. . . . . . . .
Z. Troy
. New York ..........'....
lhzlqadelphls. p .o . . .-. . . .:
. Czlcago .. ._._.....v.......
l
I
U
.._......'.:
..cio-OLO-
x
,n
..... ...-1.3.3..
.........[.:..a.c:.i
RADIO TIPS
buy ‘bootleg' tubes! To get
production in radio like
else. quality parts must
O O C ,
r. many local radio full ore
21:: the ‘gallopin‘ hm‘ ‘
arpearing in many low 1‘.-
re ruining nightly concern?
o o o ‘
- one seems to know where the
emulates from, but it}! cold to
used by an armature on 3 tho-
the Pine street power Pk!“
'25 an imperfect contact.
...
O . . ’
-2, Springfield. Mn... hfll N9"
:3 in strong late!!- It! din-
coneert between 6:30’8115 7339
been particularly 330- '
o o t.
211 a wave trap prevent Won
question which E 0M
it: not. but it will minim!” 1°-
:c: C! interference 09 m 113-"
o s o
:tezlrnes a. Inn has 8 Meal!
' use-d panel, but with unaccu-
holes 111 it. A good m M
holes is made 0! no!“ ‘1'
“3K Compound mixed with in:
.; fill the hole with'fln
round and hold
“limos-w“:
hoe blacking. Cover the rear 1*.
hole with a piece of m1 '1" ‘
List Of Broadcasting Stations
I’ASI‘B THIS IN IUCB IL‘LDIU SCIIAP BOOK
“Fave
length
in meters
455
405
390
417
309
448
500
278
526
486
405
503
440
309
261
469
390
517
‘ Station and City
Sun, New York
“'JY, New York .............
“033', Cleveland
“LAG, Minneapolis . . .:. . . . . ...
“'L‘V, Cincinnati
\VSIAQ. Chicago
“'MC, Memphis ..............
\\'.\'AC, Boston .....5.........
“'0A\“. Omaha
“‘OC, Davenport. Ia. :- . . . .w. . .
“'08,;N'cwark. ...............
“'00, Philadelphia . . . . . . . . . . .
“'08, J eherson City. Mo. . . . . . .
\\' ‘ , Cincinnati. 0. .........
\ESAD, Provmencc. R. I. _. . . . . .
“'30, Washington ........ ...
“TALK, Cleveland. 0. . . . . . . . . .
“VJ. Detroit ..............
Principal Eur-01m Stations.
Meters
350
475
400
420
43.3
370
............
...-... cuo._
....u-ucoccccf
...-......oo,
2-10, London ...... ..
51T,Blrmingham ...........
2-ZY, Manchester ;............
5-SC. Glascow _...........
54‘“.de .............-..
5-30. Newcastle ..............
2'81), Aberdeen ..... ...... ... 435
ECOLE SUPERIURE, Paris 450
RADIOLA,Parls .............1780
EIFFEL TOWER. Paris .......2600
Don't buy a tube socket with no
name upon it. The leakuge through
such sockets is sometimes so great
as to make s set inoperative.
O O 0
Better 'cppuflcntion and less dis-
tortion will be ebulnod from trenc-
«iformers‘hcflnglc. rotio o! 5 to 1 or
less rather that those having higher
ratios. "
o o D.
Here's a. good up in wirinc e not
tron: n diagram. When you hhve
pacedswlremtheutcheck it
oflthodlngruntnredpencll. This
samulotoffiimf'
“A. J. NZ.” otherwllo Hilton J.
Cross, radio meanest 8t muon-
wazindwntunow s man-lea
man. The wedding took m on
April 6 when he dud-Janina: Elle-
good Fowler were made one. my
a. un- radio na‘wlll weer s "long
hop? utter reading this .cnnounce.
meat.
t
, o O T“!
“'5- “ gun he mend be-.
for.“ - battery ‘ connection:
wm blow the
BRUSSELS, Belgium ........... 416‘
m0 IS BIG.
FAClOR mm:
Operation of Set Keeps
~ Well As Happy
There perhaps was an element of
humor in the remark of u certain
hen~pecked husband that radio was
a. great boon to married men. His
wife. be related. ha’d lately become
so engrossed in listening to the
radio set in their home that he
could go out nights as much as he
wished without even having to use
his threadbare chills. In tact his
wife was so interested in the new
set that she didn't cure any more
whether he went out or not!
But there wni more humor than
truth in his statement so for as it
applies to the average man and the
average American .home.
The fact is that since radio cmo
came in most husbands don't want
to stay out. The air is so full of in—
teresting programs. high—grade or-
chestras. entertaining public ad-
dresses .and sport howl. thatvthey
look (onward to getting home at
night so they can listen in.
It begins to look as if the answer
to the question of the ages. “\Yhnt
will keep a husband home nights?"
is. “Get him to build a radio set."
A Long Island man recently told
the wrltvr of moving into a_new
house and of a delay of two or
three “‘Ccks in beginning to operate
the radio set to which he had been
accustomed. Ilome didn’t seem the
same to him or his family. Spare
tlmc hung heavily on their hands;
evenings seemed dull and flat. The
whole family had bcgun to get’ On
each other's nerves. when they
realized that all that filled them. was
they were lonesome for radio. The
set was quickly put in commission
and promptly restorvd the liousev
hqid to its normal charm and cheer-
fulncss.
One reason for the popularity of
radio in the home; and the phenom-
enal incrtnse in the use of recehh
ing 5N3 is that simplw types of sets.
such as the rnflcx. which any men-
her of the t'mmly canset up and
operate. are available at reasonable
prices. The tendency of the new-
est adxnuce in the radio art is tow-
ard simpiicitv of rnntrol. Sets are
now designvtl which. l-vcn though
they have four or flu- tulws. are not
difficult to build andgliave only one
control dial. In run. loss opera—
tions are required than setting a
phonograph going.
A little over a year ago. persons
starting out to 9:61... a set usually
inside is. ‘i-tuuc 5;: with cur,
phones. llut now the day of Hi.
one-tube scl. has pincticall)’ gone.
and {the strait lllaJority ot‘ persons
who build sets usec from three to
live 1.11ch and a loud s'po r. so
that the uncle family can htar.
lladio has come into the home to
stay. It not only pleases father.
but mother. and the young people.
There's a. thrill for the latter in
dancing to music of the best or-
chestras by radio. And for n y a
housewife the happiest women it
her busy day is toward the end of
the afternoon uncn lit-r work is
done and she can sti down for half
an hour. before preparing dinner.
and listen to spirited music.
\Vho 'knou's but what the wall-
moltoes o! the future will rend;
“What is Home “'ithout a. Radio?"
One Set Tube .
By CARLTON E. BUTLER
(Kindle Engineer.)
After you have completed chang-
ing‘vvour crystal receiver over Into
the one tube rccelvcr shown yester-
day. or you lime constructed this
recelier, you should have no trouble
in learning how to tune. After a
few days' practice you should be-
come fairly adept.
There are a few points that should
be mentioned in this connection that
will ’.a.ld you considerably. One is
the adjustment of; your detector B
utter): Detector ‘tubes. especially
the UV 200 and the C300 are some,
what critical, as regards 8 battery
adjustment. .
,Secure a. battery that is equipped
with taps so that. you can vary the
foltage {tom 16 to 22,1-2 volts. Your
tube may work better on 18 volts
than it does on 22 1-_2. In making
.these 'adjustmenu tune your receiver
to Irwesk signal. either ' code or
broadcast, and try virylng the pos-
ltlve B battery up. The'reuon
the weak signal is so that any "
crease or decrease in volume can be
readily noted. 01: a. strain Signal a
slight strength will not be detected
by the ear. ,
in the some manner. using a. weak’
signed so that the best point or re-
ception can be readily detected. ~
In tuning in you will and that
'wbeu the varlocoupler Is in podflon
so at the windings o! the tutor
Ind
same direction signals will be loud—
est. Selectivity will be lent when
the Instrument in this position. '
It you have able in tuning out.
a. particularly strong station \ try
placing the vsrlocopler touch one
HOME TODAY ’
Hubby Home As.
Very the setting of the grid leek. .-
tor are‘ parallel end .111 um
\VEDNmDA!’
VVWGY , If. Y.
(no listen)
11:55 s. m.-T1me signals.
12:30 p. m.———Stock market report.
13:40 p. run—Produce market re-
port. _ ,
12:45 9. m.——chther report.
6:059. m.—-Produce ~ond stock
market quotations: news bulletins.
5:30» p. m.-"Advonture Stow."
WEN—New ng (It! .-
7:30 p. m.—-Mll Hollet‘c Orches-
trn.
8:00 p. tit—London Shoe Orches-
trn.
3:30 p. m.——Progrun.
8:50 p. rue—Murray 8. O‘Neill.
barytone. '
9100 p.
prano.
9:10 p.
orchestra.
9:30 p. m.—-Muslcal program.
10:00 p. rim—Dan Gregory‘s or-
chestra. ’
KEG—Washington. D. C.
(469‘ Meters)
3:00 p. m. — Fashion De\"op-
nicnts of the Moment.
3:10 p. m.Song recital.
3:45 p. tin—Plano recital.
3:50 p. m.—-—Current Topics.
4:00 p. m..‘-Sonrnecim.
5:15 p. m.—-Instructlon in Inter-
national Code.
‘6200 p. m.—Storles for Children.
“Vt—New York City
(445 Meters)
1:00 p. m.—Schrn£t’. Tea Room
orchestra.
8:00 p. m.—-Helen Reunyson Wile
son. soprano. '
m.Agnes Mscpeclte. l0-
m.—-fletcher Henderson's
3:15 1. m.—Jennctto Schneider.
pianist.
3:30 p. m.—lrvlng.Chex-ln. Song-
at Plano.
3:45 p. m.-—Mlu Pequltn. popular
50083. - -
4:00 p. m.-—Ellnor Gunn’c Fuh-
ion Talk.
4:10 p. m.-—“Pecps at People" by
Edythe ll. Browne. '
4:20 p. in.—"1nterlor Decorating."
4:30 p. tan—Tea. Concert.
5:30 p. m.—Lecturo by Dr. Her-
man‘l-I. Horne. _
7:00 p. m.-——The Story Book Lady
\vill‘tcll at bedtime story. ’
7:30 p. m.-—Dance program.
’.':45 p. ni.—-—-"The Progress of the
“'orld.”
5:00 p. m.—-Dance program.
8:30 p. m. —- "Department
Health." by Dr.
nan.
8:43 p. m.——Chas. ll. Ditson pro-
gram.
9:15 :1
Dinner.
10:30 p. m.—-Da.nce program.
\vt-zAi-x New 'rm-I: on}.
(492 Meters.)
10:30 a. m.-—-0rsan Recital.
12:00 Noon—Chapel Services.
12:20 p. rim—Consolidated Mur-
ket and Weather Reports.
4:00 p. m.—t_‘lub Royals Orches-
tra.
5:00 p. m.
Contrnlxo.
7:00 p. m.———Rellglous Services.
7:30 p. m.———Dally Sport Talk by
Thornton-Fisher. ~ .
7:40 p. m. —- Michael Lombard,
Cellist. and Edythe Lambertl, So-
prano. , . .
7:50 p. m.—”lelng the Baby
Chicks the right start in Life" by
Fred “7. 017m. -.
5:00 p. in. "Government by
Committee." by Schuyler C. Wallace
8:20 p. m.—Concert by the Unlt~
ed States Marine Band Orchestrl.
9:30 p. m. --- The "Chlclet Or-
chestra."
KDKA East Pittsburgh P. A.
(326 Meters)
9:45 a. nix—Union’lee Stock Mu:
ket Reports.
11:55 a. m.—-—Arllngton time sly-
nals. '
12:00 M.—Weather forecast. Unit-
ed States Bureau of Mnrkot reports.
12:16 p. m.-—Noon concert.
6:15 p. m.-Dlnner concert by the
Pittsburgh Athletic Association Or-
chestra.
Music Week ‘
Over the Radio
News that the American Society
of Composers. Authors and Publish-
era has granted to broadcasting atla-
tlons, under the auspices or the Na-
tional Muslo Week Committee, right
publicly to perform during National
Muslc Week. May 4-10 mpslccl corn-
poaltlons controlled by the .0ch
has been received with delight by re-
dio "tans" the countrywer. accord-
ing to C. M. 'l‘remclue.’secetnry of
the committee. 0 '
In view qt the firm manna b7
the American Society at Composer-l.
Authors end Publishers. against pet'—
mlttlng the unlicensed ‘sbrocdcuflnx
or music copyrighted by its mom-
bcrs. this action bu the port of the
society In regarded as indicative 01
the importance Stunned tuxedo-d
Music Week by the persons who
compose and publish music-1w.“
as by those,who play and mu
and thou, who merely listen.
Permldon hug been chained tron
Mr. Tremaine to publish them-
;ng letter tron: E.- C. 3113:6931”;
0!
Frank J. Monog-
m—St. George Society
I
—— M ary Davenport.
the Tutu College Glee Club.
h _ _
:13 p. m.-—(§uden talk.
¢ p. Inc—A dress b Dr. .
u 8 Baker. ’ Thom
7:“ D. m—Nstlonsl Stockuun
"I: (gunner Market reports.
: p. rum—Literary grim, in-
temper-5d with music. m
{:3 :. rim—3mm (suture.
i - m.— lln on c
Wenthcr forecast. It an m
KW. Gnu-cc. much
(536 Meters) ‘
9:80 a. m.—-tho new. and com-
ment of the financial and comment
chi markets. (This ccrvlcé is brand-
cut a“!!! hell hour during the
twenty four.) ' »
11:38 a. m.—Teblo Talk by Mrs.
Anna. J. Peterson.
6:00 p. m.——Spa.nish Lesson by
Prof. A. A. Branchl.
8:88 p. m.——Ncws. financial and
final markets.
6:45 p. m.-—Chlldren'l bedtime
story. i’ ,
7:00 p. m.—-Dlnner concert.
3:00 p. m.——-.\Iuslcel program.
9:00 p. m.—-“Good Road' {talk
9:05 p. [hr-Pros“!!! furnished un
deer the auspices or the Union Trust
0.
9:15 p. m.—Book Review} by
Lellyn Jones.
10:00 3:. m.-—Mldnlght Revue.
“112 Springfield. Moss
(:37 Meters)
11:65 5. masArllngton time sig-
nals; weather reports; Boston and
Springfield Market reports.
6:00 p. m.—Dlnner Concert by the
“‘87. String Orchestra.
7:00 p. rim—Humorous program.
Adjutant General. Inspector Gener-
al Judge Aliment. General. , Chop-
lclns of the Ornnlxed Reserves" a.
series of lectures by Nflor Chnrlec
A. Thins. -
7:30 p. m.——Bcdtlme 'story for the
kiddies. '
7:40 p. m.—Prognm or Chamber
Music.
9:55 p. m.-—Arllugton time signal-
rnon nosrox srumo
8:30 p. m.-—Progrum .by Ruth
Shubow soprano and Maria Nude";
pianist. Mrs. Charles Gelssler. whis-
tler. Nab. Going pianist.
11:30 p. m.—Dnnce program.
“'0“. Newer-k N. J.
(405 Meters)
2:30 p.m.-——Tenor solo: by Joseph
M. White of New York.
2:46 p.lll.--J0lnt recital by Lucil-
le Du Mont. soprano. and Jack Mor-
lsse. tenor.
3:00 p.m.—-Surah Tru
Key Johnston. actor—George
chcll. comedian.
3:30 p.m.——~'l‘enor solo: by Joseph
M. \V’hlto of New York.
3:45 p.m.—Jolnt rccltnl by Lucil-
le Du Mont. soprano. and Jack
Mousse. tenor.
6:15 p.m.——Muslc While You Dlnc.
8:00 P. M. “Under the Spreading
Chestnut Tree." humorous yarns. G.
A. Fuller.
8:15 P. M. Soprano solos by Helen
Stone or New York.
8:80 P. M. Joint recital by Her-
man Gclhnusen. baritone. and Her-
man Ncumami. planistaccompanlst.
9:00 I". M. Dr. Alfred J. Lotka.
"The Furniture or the Mind."
9:15 P. M. Soprano solos by Helen
Stone. . .
9:30 P. M. “Sweden. Land of Sun-
llt Nights." 8. travel talk by James
Albert “Isles:
’ 9:45 P. M. Jolnt recital by Colin
Tun-ill. mezzo-soprano. and Hex-mun
Gclhsusen. baritone.
10:15 P. M. Manhattan Seronsders
“'61, Medford Hillside, Mass.
(860 Meters)
12:00 Noon music
12:40 P. M. New England Wellh-
cr Forecast.
12:45 P. M.‘ Closing Report on
Former- Produce Market. Report.
6:80 P. M. Closing Stuck Market
Reports. ’
Reports. Live Stack Market- Be-
portc. \Vorld Market Survey. Boston
Police Reports. ’ '
6:45 P. 1‘. Code Proctloo.
7:00 P. M. fleeting o: the Amnd
Big Brotbec Club. Message to Camp
Fire Girls by.Chu. WI Canon.
7:30 P. M. Evening‘s Concert by
ex. sctrels
Mit-
chnll apply only to programs per-
tormod sud—or brondcuted directly
under the auspices of and with the
official approval or your Committee.
or local branches thereof. And that.
immediately preceding the broad-
cuting ot any—program containing
works included in the repertory or
the Society. the following woken sn-
nouncement shall be bro-dented:
or ‘the American Society of
Composers. Authors and Pub-
lishers. works copyrighted by
its members will be included
in the tollowlng program"
. "We sincerely trust thst the NI.-
tlonsl Music Week ot the current
yur will be mg most successful yet
promoted. and would thank you to
”howled“ receipt and under-
standing at thewlthln contained
license.» which any be presented to
any broadcasting cation asking for
your authority in the pustules."
Mr. Tromclrte,_1udglng trout In-
ternation- nthcrod by his colu-
_mm$cc believes that not leis then
;mioomnnluu. o: Nucleus: uncle
Wuh‘Prcudcnt-Coclidgc‘ has sc-
’ the chairmen-hip ot‘ the
'* ”Wfldlnncrot
«This arm or,
in”, nude Week Commuter '
which'h‘msdonpor'm’gcnmn 2/
WIRES“ RADlo
‘31:ch
Many Problems 'Arise
In Conn&tion With
This Method
By men n. ma.
phone call is c. relutlvely simple
task. Sitting at your desk in New
York. you call the operator at the
locel enhance by lifting your rec
celrcr from the book. salt for "Iiong
Distance." end have name cud lo-
cutlon of the desired party recorded.
In a. few minutes your friend in Chl-
cago‘ls ready to tell: to you.
So many people do thgdally that
culling Chicago from . York hug
become u smlple routine task to?
tfi’o staff ot’the telephone orgsnlu-
"on. Standard equipment 1nd clr-
cults are used as well as regular
operntors working on tbelr usual
tours of duty.
During the last, year. long distance
telephone clrcult‘s have occasionally
been used in connection with radio
broadcasting. In those cases. the
telephone lines have been mustered
into a. most unusual task dln‘erlng
radically from ordinary long dis—
tcnce telephone communlcntlou.
Specifically a much wider range of
frequencies than is necessary for
ordinary conversation must be
tnnsmltted by these lines .wlthout
noticeable distortion and special pre-
cautions to avoid line noises must
be taken.
Reproduced sounds have two
qualities. intelligibility and nnturnl—
new. In commercial telephone cerv-
lce, the first is of prlmc importance.
In bro-denoting. however. natural-
ncss must also be considered. for
without it. there is little or no on-
tortninmcnt value tp radio programs.
We seek not only to communicate
words so that they are intclllglhle
to the listener. but to convey faith-
fully every intonation of voice and
instrumental quality. This necessi-
tates transmission over A much wider
hand of frequencies than required
for intelligible speech.
The actual work necessary to pre-
pare long distance telephone lines
for use in conectlon with radio
broadcasting in Indicated by the
broadcast of a. meeting of the N1-
tlonal rEleclrlc Light Association.
Several months ago microphones
were installed in Carnegie Hall. New
York. to pick up speeches by Ju-
llus Barnes, President of the United
States Chamber of Commerce and
vocal selections by Anna Cue. Mot-
ropolltan Op‘t-rn soprano. Thls pro-
gram was broadcast through \"BAP.
New York. \VGY. Schenectady.
KDKA. I‘ltsburgh and KYW. Chi—
cago. A roll call was taken by
means or the telegraph system which
always connects all. stations end re-
peater points involved in the elm-
ultnncous broadcasting, and the
names of no loss than 65 engineers
were called off which represented the
personnel especially detailed to the
tank. of wire telephony end bromi-
custlng. Many of these engineer-
werc sent long distances to thclr
various stations. They had to be on
duty not only on the occasion of
{the program. but several days and
nights ahead for preliminary tests.
Naturally such preparations cause
the expense of disorganization ot
schedules and the calling of substi-
tutcs.
At the point where the progrcm
is being picked up. microphones ere
installed. special wires are run from
the microphone to an amplifying
equipment, operated by on ampli-
fier expert whose task is to see that
the telephone lines are furnished
with the program at the proper vol-
ume level. To complete Sets of
Wire lines are always prepared so
that should one through some cm-
ergency become noisy. the other clr-
cult may be resortd to without inter»:
ruptlon. Telegraph cperston ore
stationed at each broadcasting m-
'tlon as well an amplifier and repeat-
or ponts so that any difficulty de-
tected by the monitoring engineers
muy be it once corrected.
There is a. vast difference in the
handling or a commercial cell and
the propmtlon of long distance
lines in connection with radio broad-
casting. A wider appreciation of
these problems and of the magni-
tude of the task involved” would
make clear why more broadcasting
s
with the old of telephone lines
not undertaken.
Completing a long dictum- telex
By wanna E.
B;badcast Bill’s Radial;
DOUGLAS
l
, :2.
\ 1“
' 2
. Our hired girl has left us. Im' it‘s
been put up to me to help not “ill:
the house work so as far as i can
see since I‘m a lovln' husband. I‘ll
respect my fair onc‘s wishes un‘
sweep th' porch. an’ arr-uh th' floor.
on‘ help her with the dishes. I might
no on cn' mention since its spring
house-clounln‘ time she‘s given mu
that wholesome job or chnsln' dust
nn' grime. An‘ than on top of all of
this. n plenty goodness know.- plan
had me in the cellar Monday wash—
in' out the clothes. The skin's all
off my knuckles. that's a 3.1.1 fact to
record I‘ve learned by c‘xpcricnt‘"
how to rub clothes on a board.
Let‘s see. st first you spread 'cm
out. In‘ rub 'cm good with soap nn'
(hon you rub th' dirt out on th’
board. Ain't that th' dope? I 'llposn
there's tricks to every trade at
least that's what they say an' here's
a new one fer you that I used lhv
other day. To really do It wnshln'
rlght uccordln‘ to my notion that
rubbln' action ould exprcss Hm
poetry of "to“; An' while om- is
engaged in the essential occuna‘
tlon why not have on' Icromp'nl-
merit fro Income broadcssun' sin-
vna._gnp time was murlfi‘tno ”a
“-3“; limo rro‘fv slut“: hut “
thy played .1 fox-Hut thrn (h. E
hogan to firm. I lu‘pl time to“ ‘
linmlc‘ UH lhn (‘lnlhl‘s “are tree m.
dirt tell vu “liar. folks as n “i 4,
or 1 km 51m: 4 . \vickctl mitt;
Ii‘npyrmm, l:=_4_ \Yoslmnhouu m
ti‘lt‘ & Manufacturing C0.
RADIOS! ‘7’ if
RADIO
EQUIPMENT 2
= Have an Expert Talon Can it
Your “A" Battery. *7:
“ATHJRH‘S human F03 um
mnivtznuu.
MANNING 2
—— and —- ‘
CAHILL '
5?.
l-
t
.....-- .
mo. FULL LINE OF ELE
" 'H. L. M
lions? ‘ The choice of music for , ”
this work must be exactly right nn' ' t , ,
then those rubber car—muffs Ihnuld 6 RIVBX‘ at Phon. 1” 'i
be clamped on pretty tight. Tho .
L EISEMANNC e AMRAD‘
- ON EASY PAYMENT PLAN ‘ ‘ l I
" 100 no. mo unto STORAGE BAT-
mmB-Guerenteed 2 years
1
$17 .005
OTRICAL SUPPLIES AID.
LIGHTING FIXTURES.
OELLER
ELECTRICAL CON TRACTOR
28 WEST WASHINGTON STREET
SOUTH NORWALK
VI
ovum . .
beautiful as your furniture.
A radio brings to your
lunatic. a good
We
' ~ A ERPETUME?‘ ”
- museum: :
Ov-u— ... ....-- ....
Radio’is a joy to every member of your filnily. ,
So simple to operate that even a child can tun. is; ,
It entertains your family any hour of the afternoon or,
, "ancient! in luxurious walnut or mahogany ccbincte—e
no small and convenient it can be
stories, sport: and songs—:19: g. perpetual mine of joy. 7
radio set today-goo need not add 7
mocha-penny to new £7811:th
“Who'd-“9.9041: winch-Oi
o
placed anywhere-dc
home unending pleasure-II
entertninmt.
Norwalk Chronicler