Richmond planet. [volume] (Richmond, Va.) 1883-1938, 1921-12-10


ing there.
Another receiving apparatus was
paced in front of the \choir, when
was under the arches to the left of
the npSe.
similar careful arrangements were
made at the grave aud l had Bishop
Brent, tho bugler and others go hire
with mo and reheal So their precise po-
sitions. Everybody co-opcrated heart.
lily, for aal the participants appreriat
rl the necessity of perfection in all
details.
AT Madison Square Garden and the
Auditorium in San Francisco the
great simplifying horns were installed
and pointed where they would spread
the the sound to THE greatest number
of PERSONS. The results you know.
Success was complete. Somuch SO
that those in the crowds felt that they
were actually participating in the cere
mony at Arlington.
"As l stood in my dugout under
the stadium at Arliugton--it was Il
neal dugout from which l directed
cvcrything-I was deeply touched By
some of the messages that came to me-
men. For example, Il hard.slrell tele-
graph operator--you know, old tele-
graph operators are not a sentimental
lot, for their business is to keep cool
and alert, no matter what is gong on
about them wired me: They are say
ing the Lords Prayer. Don't interrupt
me; l am saying it too Another man
wired from San Francisco: We are
singing the hymn"
"How many seconds after the actual
words were pronounced did they
reach such places as San Francisco?"
l interrupted.
"No seconds at ALL" replied Col.
Carly "rhe sounds from the amplifv
ing horns at San Francisco were alb
solutc,y simultaneous with those from
the speakers mouth at Arlington just
as simultaneous as those heard over
an ordinary telephone. For thew
were really heard over telephone.
only mngnified."
Cot. Carly read me several letters
he had received expressing the amaZ-
ed delight Of the writer's at the perfcc
ton of tho voices they had heard. One
was from Col Axton, Chaplain Gener-
al of the Army, who quoted message
he had received from a former pastor
Of his twenty years ago in San Fran.
cisco in which the latter tod the Chap
lain he recognized the information of
his voice just as he had been accus-
toned to hear it twenty years before.
$50 much for the arrangements and
their results" continued Col. Carly.
Now you will want to know something
about how the telephones were able 10
reproduce every sound so much moro
perfectly than is usual with an ordl
nary telephone land yet magnificd
more than million times. That figure
is us nearly an accurate estimate OF
the magnificaton as is possible to
give to the general public. Any other
way Of putting 1t would be meaning
less except to electrical engineers. Rut
our experts have made careful calCu-
lations and their figures show tina, che
voice as ii sounded in New York or in
San Francisco was a little more than
a million times ampiified. Yet 1t lost
none of its quality
"If I speak into this desk telephone
and an amplifier Is put OH my voice
will sound like Il roar OF uninteliglhie
noise. That is because aSl tho Mtue im-
perfections Of the instrument are am
plified as well rs my voice. so the
first thing we hav eto DO Is 10
make telephone receiver so deilcale
that there will be no imperfection l"
ampEfy. 1t is just as If you take an
cXuuisitcly fine web of silk and put II
under Il microscope; every irmy
thread looks like IL cable. What you
wan, is to mako IL web so fine that
even under the microscope its threads
will retain all their finene3s. TINS Is
what we had to do with the telephone
receiver. We did it, but the instrument
was now so do:icatc that tic voice IL
sent over the wire was lnaudlDic'
Therefore, we placed an ampllhcr nh
der the receiver in order to magnify
the voice to II size sufficient to pass
over the wires. At the far aend TINS
would arrive like an ordinary voice,
but with harsh, disagroeable noise,
lust the voice as it were OF man SIT
ting talking to you.
"'rhiS, then, had to be magnilicd
again in order to make it loud enough
to be heard by hundreds OF thousands.
So 1T New York, Chicago, San Francis
co and other points at which tho
crowds assembled the amplifier and
horns were installed.
"And at fourteen points along the
line we established repeater stations.
At each Of these the electric current
carrying the sound waves was restor
ed to its original intensity by tele'
phonic relays. Current becomes weak
or as it passes over q wire, until IL
reaches the point at which it is nc
longer strong enough to carry the
sound and has to be reinforced. This
is what takes place at each repeatc.
station.
lust how the voice Is amplifie1
would be difficult to explain to your
. readers. The apparatus is exceedingly
complex and can be described only III
technical terms. Sufficel it to say that
it Is based upon the introduction Of
vacuum tubes. These have the quality
of taking sound waves borne OH an
electric current and rreat1v enlarring