THE LEXINGTON LEADER
REGENERATIVE SET
COSTLY BUT USEFUL
Methods for Converting the Sim-
ple Vacuum Tube Receiver
Into That Type.
There are a great many amateurs
who own and operate radio receiving |
sets using vacuum tube detectors who
would like to have regenerative re-
ceivers. Hegenerative receivers, how-
sver, are relatively expensive because
of the high royalty the companies li-
censed to manufacture these sets pay
for the use of the Armstrong patent.
The regenerative circuit Is desirable
n spite of these difficulties, because
 y converting his vacuum tube de-
tector into a regenerative receiver, an
«mateur cannot only then pick up un-
lamped or continuous-wave signals
tut, his incoming signals will be great-
y amplified. A regenerative receiver
will produce for the same incoming slg-
aal a much stronger response In the
leadphones than a non-regenerative
receiver In connection with u one-
itage amplifier. Then, too, the ad-
dition of the amplifier necessitates
pxtra tubes, amplifying transformers,
 tc„ as a first cost and more power
to operate as a maintenance cost.
The simple vacuum tube receiver us-
ing a tuning coil only for vnrylng
wave length can be recommended as
length, ■ better circuit arrangement
can be had for regeneration. Figure
J shows the circuit connected for r&
generation. This is also the ultra-
audlon circuit. I5y the use of the ultra-
audion circuit the simple loose coupler
can also be converted into a regenera-
tive circuit with a vacuum tube.
One of the best methods for con-
verting a loose coupler into a regen-
erative circuit receiver, provided the
primary of the loose coupler is
equipped with two sides, is shown In
Figure I,. Here the primary of the
loose coupler Is used not only as a
part of the antenna oscillating circuit,
but also as the plate Inductance coll
LINKING UP STATE SYSTEMS
Progressive Step Attributed to
quirements of Federal-Aid
Legislation.
Re-
a
for feeding energy back to the grid cir-
cuit from the plate circuit.
The best method of adapting a
loose coupler to a regenerative circuit
arrangement Is shown In Figure M.
The primary of the loose coupler is
used for tuning as In a single circuit
tuner employing a tuning coil. The
secondary of the tuning coll Is not
connected In the grid circuit as it nor-
mally Is, but is In the plate circuit.
By connecting the secondary in'
the plate circuit, the amount of In-
ductance In the plate circuit can be
varied and the coupling of the plate
(Prepared by the United Statee Department
of Agriculture )
A recent meeting of New England
state highway officials and engineers
of the bureau of public roads of the
United States Department of Agricul-
ture, marks an important point in tli*
development of highways In this coun
try. This is the first meeting ever hell
between officials empowered to act, foi
the purpose of luying out a system ol
highways to serve an area larger than
a single stute. It Is the first of a se-
ries of similar meetings which will be
| held between the federal officials and
l^ghwny authorities of various groups
of states, the object of which will be
the solution of the problem for the
whole country.
Tills progressive step, long wished
for by all users of the highways, can
he attributed to the requirements of
federal-aid legislation, it Is required
that all federal aid be spent on a con
nected system of highways designee
to serve l lie needs of the whole coun-
try. Tentative systems have been sub-
mitted by all except eight states, and
now the series of meetings is being
held to connect and co-ordinate the
proposed state systems.
The bureau of public roads intends
to push this work as rapidly us pos-
sible, so as to lay before the people
the plans for what will be by far the
greatest highway system In the world.
At present only roads certain to be on
the system are being approved for
fete*:
sySEk- i
An Improved Road in Red Bank, N. J
Before and After Its Completion.
construction with federal aid; In Maj j
more than twenty miles of completed
j road was added to the system on each
working day. It is estimated that the
system will comprise 180,000 miles of
! highway.
fhown in Figure I, to form a regenera-
tive circuit. When the two-point
switch is on contact No. 1, the set is
non-regenerative. Turning the switch
!o point No. 2 makes the set regenera-
te. The circuit arrangement for re-
jenerative Is known as the ultra au-
dlon circuit.
It Is difficult to control the amount
of regeneration in a circuit of this
A
Jl
n7
circuit back to the antenna and the
grid circuit can be controlled. This
will allow any desired result in re-
generating that can be used to obtain
excellent results.
For those who wish to retain the
selective tuning properties of a loose
coupler, the feed back arrangement
shown in Figure N is suggested. In
this circuit a third coil called a
"tickler" Is connected In the plate
circuit and used to feed back the
plate circuit energy Into the grid cir-
cuit. The tickler coll Is similar In
physical dimensions to the secondary
of the loose coupler though it need
have only approximately 75 per cent
as many turns.
It should be mounted on rods to
slide back and forth inside of the pri-
mary of the loose coupler, entering the
primary from the opposite side as does
the loose coupler; that is, a loose coup-
ler equipped with two secondaries,
one sliding in one side of the primary,
and the other sliding in the other side
of the primary. It is desirable to
have more taps on the tickler coll than
(here usually are on the secondary so
as to permit a closer adjustment of
the plate circuit inductance.
type and close adjustment of the fila-
ment current and plate potentials is
necessary to avoid distortion.
When an antenna series condenser
is used In conjunction with the tun
ing roll for controlling the wave
Radio Fans Blamed in Paris.
The opening of the station at Flffel
tower for broadcasting purposes
brought much* joy to the continent
and England, but not to the French
department of communications which
controls the wire systems there. Iu
I'arls alone it Is reported that more
than 200 telephone receivers are "lift-
ed" every day and never returned.
The radio fans are blaived.
LARGE STATE ROAD PROGRAM
South Carolina Wants to Spend $34,-
000,000 on Improvements In
Next Six Years.
A proposal to spend $.'M,000,0(X)
within six years and to complete
within that time 4,000 miles nf the
state s.vsteai, more than 600 miles of
which would be hard surfaced and the
remainder surfaced with sand-clay,
top soil, or gravel is to be urged upon
the legislature of South Carolina. In
order that this proposal should con-
form to the federal aid acts the state
highway officials recently held confer-
ences with representatives of the bu-
reau of public roads of the United
States Department of Agriculture.
If this greatly expanded program is
carried out. C e state will match all of
the federal aid money now available
and any future appropriation that
may become available. Funds will lie
raised by automobile licenses, by con
tinning the state-wide two-mill prop-
erty tax. a one-cent per-gallon motor
fuel tax, plus a bond issue of $10,000,-
000.
HIGHWAY RULES ARE STRICT
Vehicles Not Permitted to Carry More
Than Fourteen Tons Without
Special Permit.
In Massachusetts no vehicle may
travel over the highway which, with
Its load, weighs more than fourteen
tons without a special permit and
the load must not exceed 800 pounds
upon tire Inch of the vehicle. No
motor vehicle which, with Its load,
weighs more than four tons, Is allowed
to travel at a speed of over four miles
per hour If equipped with metallic
tires, or over twelve miles per hour
If equipped with tires of rubber or
similar substances. The outside
width of a vehicle is limited to eight
feet.
Good Roads in Georgia.
The state of Georgia spent nearly
$2!i,000.000 on good road construction
lust year, leading all states in tlie
southeast. Almost $10,000,000 repre-
sented federal aid.
Cost of Our Highways.
The average cost per mile of fflgh-
ways constructed in the Unitrd States
Is $17,120.
Some More Truths.
\VfOULD you use a steam shovel to move a pebble? Certainly not. Implements
are built according to the work they have to do.
Would you use a grown-up's remedy for your baby's ills? Certainly not.
Remedies are prepared according to the work THEY have to do.
All this is preliminary to reminding you that Fletcher's Castoria was sought
out, found and is prepared solely as a remedy for Infants and Children. And let
this be a warning against Substitutes, Counterfeits and the Just-as-good stuff that
may be all right for you in all your strength, but dangerous for the little babe.
All the mother-love that lies within your heart cries out to you: Be true to
Eaby. And being true to Baby you will keep in the house remedies specially
prepared for babies as you would a baby's food, hairbrush, toothbrush or sponge.
Net Contents la Fluid Dracto
geeezs
ly
Children Cry For
tpTDRlA
h ALCOHOI.-3 PER CENT. j
il AVc£et<ibIe Proparat ion for As ■
" similntiii^thcFood byRoijula-<
ting the Stomachs and Ho^lsa
Thereby Promoting DtticsW
Cheerfulness and Rest Contains
neither Opium.Morphine
Mineral. NotNahcotic
DMllrSANUXJfflmR
fumptm Sud V
jSWtnff
/tiK/uUe Sat*
Ani.tr
farm Sml
I linnfitd Sugar
yaiUrymnHa tvr ,
A helpful Remedy for
i Constipation and Diarrhoea.
j And Feverishness and
T nss of Sleep
'' resulting therefrom j|llnfancy-
' facsimile Sifriatiireot
!
lire Gkktaiw GoMP«af-
^ jVEVT YORK.
Are You Prepared?
A doctor in the house all the time would ke a good idea. Yet you
can'): afford to beep a doctor in the family to keep baby well or pre-
vent sickness. But you can do almost the same thing by having at
hand a bottle of Fletcher's Castoria, because it is a wonderful remedy
for indigestion, colic, feverishness, fretfulntfss and all the other dis-
orders that result from common ailments that babies have.
Fletcher's Castoria is perfectly safe to use. It is a harmless sub-
stitute for Castor Oil, Paregoric, Drops and Soothing Syrups. Children
cry for Fletcher's Castoria, and mothers recommend it because they
have found it a comfort to children and a mother's friend.
If you love your baby, you know how sweet it is to be able to
help baby when trouble comes. You cannot always caU upon a doctor.
But doctors have nothing but good to say of Fletcher's Castoria, be-
cause they know that it can only do good — that it can't do any harm —
and they wouldn't want you to use for baby a remedy that you would
use for yourself.
MOTHERS SHOULD READ THE BOOKLET THAT IS AROUND EVERY BOTTLE OF FLETCHER'S CASTORIA
GENUINE CASTORIA ALWAYS
Bears the Signature of
Exact Cory of Wrapper.
Or* Gives Charming flew Color Tone to Q8d Sweaters
PUTNAM FADELESS DYES—dyes cr tints as you wish
CONSTIPATION
[CARTER'S
IITTLE
IVER
PILLS
Take a good dose of Carter's Little Liver Pills
—then take2 or3 fora fewnights after.They
cleanse your system of all waste matter and
Regulate Your Bowels. Mild— as easy to
take as sugar. Genuine bear signature-
Small Pill. Small Dose. Small Price.
to repine* old,
should be grow*
ing ail the tlm«.
ild b} to or druftfitl, writ# Wlctaraioitii CbamJcaJ Co.. Loul  fll«.  
Good Surfacing Material.
Tnrs ami tar products are fust r 
plating mineral oil for surfacing roads.
Every genuine
package has
the cross and
circle printed
in red.
Malie wut
Old "Walls
m
New Hair 
Tonic — Don't (ret bald. |?et Q-Bau today — It's
much more pleanant. At all Rood drnjr^litM, 75e,
or direct from KLSSIG • ELLIS, ChcmUu, Meaphu, Tea*.
Oklahoma Directory
Learn the Best Trade on Earth
Special low tuition; expert Instructions; po-
sition guaranteed; free catalog.
Ncliwnrxe SyHtem of Harber Colleges
106 W. CuJlforniu Oklahoma City. Oklr*
EQUIPMENT
JOHNSON ELECTRIC CO.
1113 N.Broadway Oklahoma City
N. S. SHERMAN MACHINE
AND IRON WORKS
Engineers, Founders and Machinists
Grate Bars and Smokestacks
18 to 36 Es&t Main Street Oklahoma City. Ok!*.
KODAK FILMS DEVELOPED
ROLLS 10c PACKS 25o
Print* 2*4x4'4 f>r smaller, 4c;
4'4, 5c; S'Ax&Vi. 4x6, or Postcards,
6c. Agents for EJastman Kodak Co,
TIIE MAC ARTHCB COMPANY
Formerly Westfall Drug Co.
7Via N. IPdw'y, Oklahoma City, Oklu,
RADIATORS
Repuin d, rebuilt and made to
order by the lurgest automotive
radiator plant in Okluhoiua. YVe
have a wonderful special type
radiator for Ford una Chevrolet
cars. Ship Us Your Kadlators.
THF. BINKLEY COMPANY
Third St..Opposite PostOfflce
OKLAHOMA CITY, OKLA.
Redecorate with
little trouble, less
expense and greater
satisfaction. There
is one best way
to do it.
Instead of Kalsomine or Wall Paper
Ship Your Live Stock
to the
OKLAHOMA
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oklahoma city
For Best Results
Ship Your Live StocK to
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OKLAHOMA CITY. OKLA.