“BAYER ASPIRIN”
PROVED SAFE
cfeJt for the.
H a n d v P ack
Take without Fear as Told
in "Bayer” Package
D e c a p ita tio n A d d a
to Insects’ Lives
At a recent session of th e Academy
of Science P ro fe sso r B ouvler re ad u
c u rio u s p a p e r w ritte n by R. P. Cam-
bouet, noted entom ologist and for
m any yeurs a m issionary in M ad ag as­
car. T h e p u rp o rt of th e p a p e r w us to
th e effect th a t the lives of b u tte rflie s
could be prolonged by c u ttlu g th e ir
h ead s off In such a w ay a s to avoid a
hem o rrh ag e— an o p e ra tio n w hich. It
w ould a p p ear, can be p e rfo rm e d by an
Keep in
Trim! h
G o o d E lim in a tio n
f u t n h a l to
G o o d H o a lth .
H E k id n e y s are th e blood
filters. I f th e y fa il to fu n c ­
tio n p ro p a rly th e re ia a p t to ba
a re te n tio n o f toxic poisons in
th e blood. A d u ll, la n g u id f a i l ­
in g a n d , som etim es, toxic back­
aches. headaches, and dixzm esa
are s y m p to m s of this c ond itio n.
F u rth e r avid a n c a of im proper
k id n e y fu n c tio n is often found
in b u rn in g or s c a n t y p a s s a g s
o f s ec re tio n s
E a c h y ea r m ors
a n d m o re people are learning
th e v a lu e o f D o e n ' r P i H o, a
s tim u la n t d iu re tic , in this con­
d itio n . S carcely a nook or ham *
le t a n y w h e r e b u t h a s m a n y
en th u siastic users.
A sk you«
n e ig h b o r .
T
•sport.
Diagram of the Selective Five-Tube Receiver Described in Thia Article The
Apparatus Indicated In Doited Line Is Optional.
By FRANK W. HARTH,
In the N ew
fr
York H erald-T ribune.
T h e re is n o th in g p a rtic u la rly new
In th is c irc u it, w hich Is th e old Wea-
gant, w ith a few variation*. T h e set
o rig in a lly w as designed for local r e ­
ception only, hut one local did not
come In very well, so a sta g e of radio-
freq u e n c y w as added. A location In
th e c e n te r o f M a n h a tta n w as selected
fo r a test.
T h e se t Is fa irly com pact, th e panel
being 7 by 21 Inches a n d th e baseb o ard
12 by 20 Inches.
T h e ch ie f claim o f novelty is the
p lac in g o f th e R. F., secondary, and
re g e n e ra tiv e colls on one form and
having th em all of th e sam e diam eter.
T h a t sim plifies th e w ork som ew hat.
T h e re a re five tubes, a It. F. a m p li­
fier, a d e te c to r and th re e audio a m p li­
fiers. T h e a u th o r selected th e type of
audio am plifier used b ecau se th e tr a n s ­
fo rm e r gives a stro n g Initial input,
fre e from d isto rtio n , fo r th e tw o re ­
sistan ce-co u p led s ta g e s to am plify.
T h e re su lt is a signal of su rp risin g
fidelity a n d so m ew h at g re a te r volum e
th a n a tw o -stag e tran sfo rm er-co u p led
am plifier.
T h e colls a re of the ribbed ty p e of
h a rd ru b b e r tubing, recom m ended for
Its high e le ctrica l efficiency. T h ere
a re 12 rib s ru n n in g lengthw ise of the
tube a n d spaced equally around th e
c ircu m feren ce. T h e tu rn s of w ire,
to u ch in g only th e tops of th e ribs,
leave a sp a c e u n d e r th e colls and pro­
vide p ra c tic a lly an a ir core. T h e a n ­
ten n a coil w as w ound (as show n In
Fig. 2) w ith No. 22 I). C. C. w ire. 15
tu rn s for th e p rim a ry coil (L I) and 40
People who are careful o f their
health and strength use W rigley’ ,
Chewing Sweets.
Because Wrigley*s, besides being a
delightful confection, clears the teeth
o f food particles and aids digestion!
I t removes odors o f eating or
Does not affect
the H e a rt
C aiuhouet d e clare s th a t he has
trie d th e ex p erim en t su ccessfu lly w ith
e ighty b u tte rflie s and th a t bis p a tie n ts
—If th a t Is th e w o rd —not only re­
tain ed “all th e ir fa c u ltie s an- w ere
able to re p ro d u c e th e ir species, but the
a v era g e span of th e ir lives In every
case w as prolonged by from one to
tw o w eeks."
l>ecupltatl«n as a m ea n s of p ro lo n g ­
ing life ! W hat do th e m any c lie n ts of
M onsieur D eihler (th e g u illo tin e ) think
of th is? — From I.e P e tit I’urlslen.
( T ra n s la te d for (he K a n sa s City S ta r.)
D O A N ’S
S t im u la n t D iu r o t ic to th o K id n o y o
Foster M ilb u rn Co , Mfg Chem iete, B u ffalo, N ▼
critical. T h ree dials of th e sam e de­
U nless you see th e “B a y er C ro ss”
sign m ake a better-looking panel.
on p ackage o r on ta b le ts you a re not
T h e R. F. tube m ay or may not r e ­
T o S tu d y E a rth q u a k e s
g e ttin g th e g en u in e B ay er A spirin
qu ire a n egative bias, depending, of
T w o la b o ra to rie s fo r th e scientific
proved sa fe by m illions and p re scrib e d Investigation of e a rth q u a k e s a re in
course, on th e c h a ra c te ris tic s of the
by p h y sician s over tw enty-five y e u rs for p ro c ess of erection. O ne Is being
p a rtic u la r tube. From one and one-
h a lf to th re e volts usually will m ake
built a t Im perial u n iv ersity , T okyo,
Colds
rie a d a c h e
the tube function properly. To Include
Ja p a n , and th e o th e r Is being con­
N eu ritis
L um bago
a “( " ’ b a tte ry a t th is point, rem ove the
stru c te d a t P a sa d e n a, C alif., by th e
T oothache
R h eu m atism
lead X — XI, us show n In Fig. I.
C arnegie in stitu tio n of W ashington.
N e u ralg ia •
P ain . P ain
T h e set Is easy to tune, as th e re are
E ach un b ro k en “B n y er" p a ck a g e con­
only tw o m ajor controls, a n te n n a dial
ta in s proven d irec tio n s. Ila n d y boxes
and w ave-length dial. A fter the de­ -
'
There s quick pos Hive,
o f tw elve ta b le ts cost few cents. D rug- ,
relief In
tec to r tube la properly a d ju ste d the
g
ists
also
sell
b
o
ttle
s
of
24
and
100.
se ttin g of the rh eo stat can rem ain per­
m anent and th e volum e of the o u tp u t
signal controlled e n tirely hv the It. F.
M a in s p rin g s S uscep tib le
At All Druxats*» —
Money
beck Guarantee
tO
t»A«MV.LLg Vtfrt»,
tube rh e o stat. If the coils a re prop­
T he m ain sp rin g s of his w atch hav- I
erly balanced the dials should read
Ing longer re fu sed to function early
alike and then can he successfully
In the week, he took It to a local j
logged. W hen tu n in g th e set the dials
Jew eler to whom he v en tu red th e sug |
O n e m in u te —t h a t ’« h o w q u ic k D r . S ch o ll «
should be ro tated slowly, a degree at
gestion th a t a new high-grade tim e- j
Z in o p a d s e n d th « p a in o f c o r n « . T h e y
a tim e, a s th e sta tio n s sim ply drift
piece ought to la s t m ore th a n a few
do i t s afely . Y o u r i t k n o in fe c t io n fro m
In and out w ithout th e usual w hine or
m onths— It w as a C h ristm a s g ift—
a m a t e u r c u t t i n g . n o d a n g e r f r o m ' d ro p « ”
( a c id ) .
Z in o p a d « r e m o v e t h « c e e e e —
w histle. If the re g en e rativ e unit is
w ithout needing re p air.
p r e s s in g o r r u b b in g o f « h o «« . T h « y a r e
N o th in g m o re c o m fo rtin g
“ I w as su rp rise d » lie n th e expert
correct, over-regeneration is indicated
t
h
i
n
,
m
e
d ic a te d , a n t is e p t ic , p r o t e c t iv e ,
th a n “ V a s e lin e ’ ’ J e lly . Eases
re p a ir man told me m ore m ain sp rin g s
by signal becom ing m ushy when too
h e a lin g . G e t « b o x t o d a y a t y o u r d r u g ­
p a in . H as te n s n a tu re 's heal­
g
is
t
•
o
r
a
hoa d e a le r ’« — 35c.
broke du rin g th e h e ated season th an
much cap acity Is used—th a t Is. when
( w l o u r > p u r e l'in n é t n t l l Y o n L e w ru . W e
in g . W o n d e r f u l f o r c u ts ,
t e l l y o u h o w to « t a r t in B r o o m llu itln e a e }
For I n t Sample «nite The St hail Mfg. Ce., Outage
a t any o th e r tln i” d u rin g th - y e a r i
th e dlul is advanced too far. If the
scratches, bruises an d o th e r
I u n iv e r s a l m a r k e t
W r ite K A V A N A G H H R O A .
T h u n d ersto rm s and rap id changes
A O O . IS S t W
K ln x le H I . C h ic a g o . I I I .
set has a tendency to “plop,’* rem ove
w reak havoc w ith them .
It w as a j
tw o or m ore tu rn s from th e secondary
K M ’K K M K N T A T l VKH W A N T E D
fo r la r g e
r a in c o a t m a n u f a c t u r e r
t I O a ltc k e ra . 12 til.
new one on me. W e learn som ething ’
side of the re g en e rativ e coll a s a
A ll c o lo r» ; o u t f it fr e e
W e s te r n S lic k e r C e ..
every
day,"
he
confides.—
B
rockton
m eans of c o rrectin g th e fau lt. An­
I>e p t 4 « 0 A . 1N34 N o r t h A v e . C hicago
P u t o n e o n — th e p a in is g o ne
E n te rp rise.
o th er m ethod is to m ove th e re g e n e ra ­
C A S H P A I D F O H P A I.N R T R K T I I . O O I.I»
tive coll from o n e -q u a rte r Inch to
crow ns, o ld plates dlainondR,dlH< arded Jew
W. N. U., San Francisco, No. 38-1926. ' d bridge»»,
r y . m agneto pointa. Cask by re tu rn m a ll F lo rid a
fh ree-elghths Inch aw ay from the sec­
'¿old R e fin in g Co.. U A daius. J a c k s o n v ille . Fla.
L ik e s H is O ld Bus
ondary coll.
S p e a k in g o f C e re a ls
"I see th e F ren ch a re e xpected to
T he value of th e “C” b a tte ry used In
A m an th a t Is young In y e a rs m ay m ake a coup d 'e ta t."
“T ills m ovie Is c e rta in ly m ushy.”
Men lire horn w ith tw o eyes and
th e audio circu it m ay be a n y th in g be old In h o u rs if be bus lo st no tim e.
■‘.Maybe so. but llie ol' flivver Is
"I th in k so, too.
It m ust be a I one to n g u e th a t th ey may a re tw ice na
from fo u r and a h a lf volts to nine —B acon.
good enough for me."
se riu l." —C h ristia n Science M onitor.
inucli a s th ey say.— C olton.
volts or m ore If Dlnety or m ore volts
of “B" b a tte ry a re used. Most audio
am plifiers work b e tte r w ith a “C" b a t­
tery. a n d the saving of “ B” b a tte ry
la considerable In th e long run.
Wave-Length Range.
T he set should o rd in arily tune from
200 to 520 m eters sm oothly and w ith
equal volume. H ow ever, the a u th o r
g e n e r a l
m o t o r s
found one set In sev eral he built th a t
w as for som e reason o r o th er a little
tricky on w ave lengths under 300 me­
te rs—th a t Is, It had a tendency to
spill over and wag difficult to balance.
T h is tendency w as c o rre c te d by m ak­
ing use of the Rice system of n e u tra l­
ization. T h is c o n sists o f an Induc­
tan ce and a n e u tra liz in g condenser.
T hese p a rts a re indicated In th e d ra w ­
ing to show th e ir location, hut need
only be used If difficulty Is experienced
on the low wave lengths. T h ere Is,
however, only one ch an c e In a hun­
dred of Ih e lr being required. T he coll
Is com posed of th e sam e num ber of
tu rn s as th e R. F. coll and la wound
directly over the H. F. coll.
T he tube In the la st sta g e can be a
201 A If th e horn tyi>e of lond sp e a k er
Is used. How ever. If th e bu ild er In­
ten d s to use a cone-type sp eak er, he
will re q u ire a g re a te r o u tp u t voltage
properly to vib rate th e cone. T h e use
of a FX171 pow er Is suggested h e re as
a su itab le m eans of providing the n ec­
essary pow er w ithout d isto rtin g the
signal. An am jierlte o r sim ila r fila­
m ent control device of one-half am ­
pere capacity m ust he provided for
th is type of tube.
T he choke and larg e condenser
show n In th e diagram cun be used or
not as th e builder sees fit. W ith th eir
nse the ou tp u t signal will he m uch
sm oother, a s th e heavy direct c u rre n t
Is by passed through thp choke in­
stead of being allowed to p ass through
th e sp e a k e r coll.
P art» Required.
T he follow ing Is a list o f p a rts a c ­
tually used, hut th e re Is no reason
why thp set would not work y e ll If
o th er equally su itab le p a rts o f good
quality w ere s u b s titu te d :
One cabinet, 21 Inches long and 12
Inches deep.
One baseboard. 7 by 20-lnch wood.
R rass strip. H by 1-18. See text.
One R sdlon panel. 7 bv 3-13 Inches.
T w o v a r li.d e condensers, .0008. G en­
There could be no greater proof of
made a Body by Fisher the standard
e ral In stru m en t.
Fisher
quality
than
the
selection
of
of
highest quality the w orld over.
One v ariab le condenser. .0002, G en­
Bodies by Fisher for all of the leading
e ral Instrum ent.
N ew pro d u cts of G e n e ra l Motors
Five 201-A tubes.
makes of cars, in all price divisions.
Tw o rh eo stats.
have just been announced.
Tw o R adlon sockets.
Fisher Bodies have been exclusively
T h ree sockets, gang, bakelite.
A s you consider their greater merits
Tw o tu b u la r form s 3 by 8 Incbea
adopted for all divisions of the G en­
we ask you to give particular atten­
and 3 by 3 Inches R adlon hard rubber.
eral Motors Corporation, for instance.
One grid leak, variable
tion to their exclusive use of Bodies
One grid condenser, .00025.
by Fisher.
T hree am perltes and m ountings.
A n d w h e th e r your selection be
KEEP YOUR SCALP
Clean and Healthy
Ends
p a in i n
one
m in u te
WITH CUTICURA
[OILS
CARBOIL
CORNS
Scholl's
lino-pads
FISHER. BODIES
Constructional Data on Antenna and
Radio-Frequency Coll of Receiver.
tu r n s fo r th e seco n d ary (L 2). T he
n u m b er of tu rn s for th is coil may
vary, d ep en d in g upon the length and
ty p e of a e ria l used. T he a erial used
w ith th is se t w as about 75 feet In
length. If a s h o r te r aerial Is used. 50
to 54 tu r n s m ay be required. T he
sp acin g b etw een th e p rim ary and sec­
o n d a ry Is not c ritica l : from one-eighth-
inch to one-q u arter-in ch w orks.
Construction of Coils.
T h e coll form show n In the draw ing
(Fig. 3 , p e rfo rm s a th reefo ld d u ty —
th a t o f su p p o rtin g th e It. F. prim ary,
th e It. F. se co n d ary and th e regenera
tlv e coil. T h e R. F. prim ary coll
Is comiMised of 20 tu rn s of No. 22 F>.
C. C., th e It. F . secondary coll ( I d ) of
43 tu r n s of No. 22 D. C. C., and th e r e ­
g e n e ra tiv e coll (1.5) of 12 tu rn s of No.
30 I). C. C. T h e spacing betw een th e
It. F . p rim a ry and th e K. F. secondary
m ust be tw o Inches, o r slightly m ore
m ay pro v e even b e tte r. T h e re g e n e ra ­
tiv e coll (1.5) Is spaced about one-
eighth Inch from th e secondary.
T o o b tain a v a ria b le condenser of
0002 c a p a c ity for th e re g e n e ra to r a
la rg e r co n d en ser can be used by re ­
m oving a n u m b er o f th e ro to r plates.
In th ia c a se n .00035 w as used, a f te r
rem oving fo u r ro to r plates, w hich
b rought th e c ap a city down to ap p ro x i­
m ately .0002 mfd.
T h e In d u c ta n ce form a can he fa s­
tened d ire c tly to th e b aseboard w ith a
wood screw or elev ated a h a lf Inch
o r so on S -shaped s trip s of b rass. One
end of th e 3 Is th en bolted to th e form
and th e o th e r e n d screw ed to th e base­
board.
F o r best re su lts a good au d io tr a n s ­
fo rm er sh o u ld bs used, one of not too
high a ra tio . O ne of th e m odern large-
site d tra n s fo rm e rs should give ideal
re su lts.
T he
re sista n c e
couplers
should, o f course, he of th e highest
g ra d e to b a la n c e th e au d io tra n s fo rm ­
er. A little p a in s ta k e n to obtain the
rig h t re sista n c e vnlues is re ally w orth
w hile, a s th e b u ild e r will be am ply
rep aid by th e re su lts obtained.
Only tw o v e rn ie r d ia ls a re required,
aa th e re g e n e ra tiv e co n d en ser la not
I
T H E IN E V IT A B L E B O D Y
O N T H E Q U A L IT Y C A R S
1-A V.
.
One audio tran sfo rm e r.
Two re slsto couplers.
F o u r resistances, .05. 25, .1 and 2.0.
T w o coupling condensers. .008.
T w elve binding posts.
T erm in al atrip. 1H by 4 by 8-16
Cadillac, Buick, Chevrolet, Oakland,
O ldsm obile or P ontiac, on every
General Motors car you find a body
with all of the inbuilt factors of safety,
Comfort and convenience which have
T he lastest Fisher creations set the
new G eneral Motors cars as far ahead
in safety, comfort, beauty and con­
venience as any mechanical improve­
ments could possibly do.
Incbea.
T erm inal strip . 1H by 8 by 8-18
Inches.
Three dials.
One filam ent sw itch.
O ne pound No. 22 D. C. C.
One eighth pound No 30 D <3 C.
N ecessary screw s, w ire for connec
tlons, etc.
F IS H E S