The Washington times., 1929-02-07
JENKINS NEARS
TELEV|S|0N
GOAL
BY JAMES l.. KILGALLEN
tCepyrlght, 1919, BY international


periments now in progress will bring
television out OF the 'peep-hole
stage" in the opinion OF James w.
Garside, president of the DeForest
Radio Company and president of
the newly formed Jenkins Television
Corporation.
lin televisioh, as in other fields,
there are varying degrees of prog
ress.' said Mr.. Garside today.
There are experlmenters through.
out the country working with huge
scanning disks, large, neon lamps,
and speed control, with the locker
In gazing at a tiny image woven
by the whirling holes in the scan
ming disk.
Like Penny In SlOt
''This is the peep.hole stage OF
television. and Is comparable to the
penny-in-the.slot stage OF the mo,
tion picture industry before G.
Francis Jenkins, of Washington,
ID. c., developed the first protector
and placed pictures on the screen,
sands, might view them at one time.
"F'or several years past Mr.. Jen-
kins has been working on televi-
sion. Long before the demonstra'
tiOns early last year DIR. f. +. w.
Alexanderson,, of the General Elec.
trio. Company and the NRadio COrpo-
ration OF America. as wen as other
workers In this field. Mr.. jenkins
f4sf. IL srae QwaA
televfsion pictures over consider.
able distances. For more than six
months past his transmitter,
W3XIS, at washington, ID. c.. has
been broadcasting simultaneously
on two wave lengths, namely,
short waves for distant 'lookers.in
and broadcast waves for Washing
ton and nearby 'lookers.in
although Mr.. Jenkins. In order
to foster interest in practical tele.
vision, has distributed thousands
OF simple television outfits with
cardboard scanning-dfsks to anna
teurs and experimenters at cost.
he has progressed far beyond the
usual scanning disk technique.
Special Device
'Indeed. he has discarded the
scanning disk in preference OF
special scanning drum OF compact
dimensions. Instead OF the usual
neon lamp with single large plate
recurring considerable output so
that a special power ampfifier or
considerable B batteries are re-
ouired. jenkins employs four
splate neon lamp OF his own invens
ton. with each plate flashing IN
rotation so as to be scanned by
one quarter of his scanning drum
holes in turn.
"An ingenious optical system pro
iects the whirling dots Of light on
to q magnifier screen, so that not
one but a dozen 'lookers-ln may
enjoy the television program. Here,
again. we have the transition tnat
took place when selfish radio Win
ifs headnhones made way for un-
selfish radio with its londspea ker.
siarhe entire televisor. as he terms
II. oceupies less room than the aver
age radio receiver. 1t may be oper'
ated on The usual radio set In place
Of the loud speaker. IL tuned IN for
teleyision signal. The operation ls
50 simple that the average broad
cast listener can handle 1T.
Transmission Progress
"And at the transmitting end Mr..
Jenkins has scored comparable prog
ress. While most television workers
are struggling with the limitations
of the television stage, with It's
small dimensions, scanning disk,
sensitive plIoto.electric cells, light.
ing conditions and so on, as Wen
as the seaech for so-ealled television
faces or faces that televise propr
erly with or without makeup,
jenkins has gone ahead with his
radio movies
Elm this process he films suitable
television subjects in any place and
manner desired. The negative tim
is printed up on one or more posi-
tive films, and these are available
for his radio movies protector. This
device simply takes the film ana
converts it into electrical impulses
which are impressed on the out.
going waves from a broadcast trans
mitter. Just as the micrOphone picks
up sound waves. converts them into
electrical terms and impresses these
on the outgoing radio waves.
"As the direct result of jenkins
radio movies, any broa6casting sta
ton. with simple device. is set up
for television work. Ample subjects
are made available. It becomes
possible to prepare television sub
iects for the entire country without
the trouble and cost Of wire net.
works"
Projecting Image
Even that does not tell the whole
story. Mr.. Garside said. He de.
clared that Jenkins has scanning
disk with matched lenses 80 that
II beconles possible 10 project the
teievisfon image on a fair.sized
screen, il. order that the entertain.
ment can be followed by small
theatre audience.
jenkins il working on televislon |
camera for outside work which win
permit of picking up far greater
detail and scope than has 30 far
been attempted. He has q checker
board lamp device which will con.
vert television images into a power
ful, light.woven pattern. with many |
over the tiny holes of |
the usual scanning disk with so
little light for magnifying purposes.
II firmly believe" said Mr.. Gar
side. speaking Of the future, that |
will find place along |
side our present radio programs. |
There will be television features |
inst as there are sound features.