The Oskaloosa herald., 1917-02-01
WIRELESS MUSIC
USED FOR DANCE
y
Sent From Distance of Forty
Miles, It Is Heard All Over
the House.
DOUBLE AMPLIFlERS USED
Inventions Of Doctor Armstrong Of
Columbia University and Lee de
Forest Make Experiment at
Morristown, NJ. j., Success.

"StiiotO"H1 W. Sp SdSSSoSs
New York.--What was declared to
be the worlds first wireless dance was
held recently at Morristown, N. j., at
the home of Theodore L. Gaty. His
two sons-John p. and Theodore e.
Gaty, Jr., the latter home from Cornell
for the holidays--got UP dance and
throughout the evening the seven or
eight couples who had been invited
danced to music that was played on a
northern end of Manhattan, about 40
miles away from Morristown by air
line.
Mr.. Gaty and his sons are enthusiasts
tic amateurs in the science of radio
telephony and telegraph. A friend, 2.
f. Cooley of Montclair, who is radio
engineer, made use of the Lee de For
est audlon detector and the sound
amplifier invented by DR.. Edwin III.
Armstrong Of Columbia, the inven-
lions which made transcontinental tel
ephony possible, as well as a wire
less telephone message to Honolulu.
Mr.. Cooley, who is only twenty-seven
years old, adapted the two devices to
amateur use and attached them to a
photograph horn in the Gaty home.
Taken by Amateur Receiver.
The photograph that furnished the
dance music was played in tie High
bridge plant of the De Forrest Radio
Telephone and Telegraph company,
and the musical sound waves We're re-
ceived by the amateur receiver over
Mr.. Gaty's house.
When the faint sounds, which, COM
ing from the receiver, could scarcely
be detected by the ear, passed through
the combined sound amplifiers and
then through the megaphone they
could be heard all over the house.
To show how clearly the sound was
transmitted, Mr.. Gaty telephoned to
the De Forest company's office at High
bridge and the operator of the phono-
graph listened to the ground wire tele-
phone. The music when it got back to
him by this route, he said, was even
louder than the original sounds from
the phonograph. A New York Times
reporter called up Mr.. Gaty's house
and the megaphone was placed near
the receiver at that end. The music,
transmitted about 40 miles through air
and then nearly the same distance by
ground wires, could be heard distinct
ly. The photograph was telling how
she could ''yacki hack wicki wacki
WOO" in Honolulu.
Mr.. Gaty was enthusiastic. He said
that the operator in the De Forest
building announced the number of
each record, it's name, and so forth
when he was about to put it on the
photograph, and that the spoken an
nouncement could be heard in every
corner of the Gaty house. Mr.. Cooley,
at his home in Montclair, had not
taken the trouble to ask if the expert
ment was successful. He took it as
matter of fact that it should be.
All Very Simple.
"It's very simple" Mr.. Cooley said
to the reporter. doctor Armstrong of
Columbia has been doing research
work along these lines for many years,
and he has at last turned out device
that will multiply sound 500 to 1000
times. The De Forest amplifier multi
piled sounds II to Is times. The prin-
ciple is somewhat the same, the diff
ference being that the Armstrong in
strument has complex repeating ac-
ton, while the De Forest instrument
has single repeating action.
Together, the instruments make 1t
simple to telephone by wireless, and
there's no reason why New Workers
should not be telephoning to Chicago
regularly except that the instruments
have not yet been put to commercial
use. That is because of the many
legal fights that are taking place over
the fundamental radio patents, and be-
cause of the field being practically tied
up at the present time by the Marconi
company. But there's nothing to pre-
vent amateurs from using these in
struments.
ut would be just as easy to- trans
init the music of an entire opera from
the Metropolitan opera house as to
transmit this photograph music that
is being played tonight. 1t would only
be necessary to Save the sending APP
paratus within range of the voices in
the Metropolitan. With the ampli-
fiers now being used the music could
be transmitted about, 200 miles,"
Mr.. Cooley said that the amplifier
perfected by Doctor Armstrong re-
sembled the headlight of an automo-
bile. Instead of the light filament,
there are two electrodes. There is
a vacuum in the bulb, and in an in
candesccnt light, and the weak sound
enters on one electrode, while the pow
erful sound issues from the other
Hioh Cost of livjnu Echo