bigram

This is a table of type bigram and their frequencies. Use it to search & browse the list to learn more about your study carrel.

bigram	frequency
vacuum tube	556
receiving set	387
new york	337
radio boys	317
tuning coil	256
alternating current	238
wireless telephone	186
direct current	185
captain folsom	158
storage battery	152
secondary coil	151
wiring diagram	149
aerial wire	146
prince huaca	146
tube detector	138
variable condenser	137
spark gap	136
telephone receiver	134
wave length	134
crystal detector	131
plate circuit	129
one end	128
united states	128
don ernesto	126
tom swift	117
young man	111
transmitting set	111
wave lengths	107
lee renaud	102
primary coil	101
telegraph transmitter	96
audio frequency	95
let us	94
grid leak	94
high frequency	94
electric waves	90
old man	89
radio frequency	87
loud speaker	87
sending station	83
spark coil	82
wireless telegraph	80
copper wire	80
boy allies	78
receiving sets	78
radio station	78
frequency currents	76
york city	76
lieutenant summers	74
grid circuit	72
mr sandys	71
microphone transmitter	71
wireless telegraphy	70
fixed condenser	70
buck looker	70
electric oscillations	68
asked bob	68
electric current	67
induction coil	67
long wave	65
wire system	65
power transformer	64
plate current	64
electromotive force	63
oscillation transformer	63
choke coil	62
telephone transmitter	62
mr homfray	61
oscillation circuit	60
last night	60
long time	60
gordon gray	60
hundred miles	60
per second	59
replied bob	58
good deal	58
rover boys	58
two men	58
next day	57
connect one	56
oscillator tube	56
telegraph key	55
inductance coil	54
frequency transformer	54
loose coupler	52
continuous waves	51
one day	51
one thing	51
electrode vacuum	51
will give	51
tom barnum	51
get back	50
anything else	50
one side	50
come along	50
watt oscillator	50
motor boat	50
two boys	49
long island	49
detector tube	49
oscillations set	48
receiving station	48
radio plant	47
short time	47
iron core	47
head phones	47
first time	46
right now	46
lightning switch	46
one post	46
sustained oscillations	46
loose coupled	46
three boys	45
far away	45
go back	44
amplifier tube	44
von arnheim	44
miles away	44
also called	44
dry cell	44
give us	44
will need	44
sending set	43
get away	43
wireless telephony	43
binding posts	42
moment later	42
telegraph transmitting	42
volt direct	42
get busy	42
oscillation circuits	42
enchanted city	42
oscillator tubes	42
come back	41
short wave	41
radio set	41
tell us	41
short distance	41
burt company	41
answered bob	40
right away	40
continuous wave	40
variable condensers	40
tube oscillator	40
tom bodine	40
laughed bob	39
alternating currents	39
human voice	39
will get	39
battery current	39
electron stream	39
frank brandon	39
inductance coils	39
boy scouts	39
closed circuit	38
go ahead	38
ground wire	38
sound waves	38
first place	38
next morning	38
step amplifier	38
oscillating currents	38
frequency current	38
coupled tuning	38
connected together	37
something like	37
hundred feet	37
high voltage	36
high school	36
telephone receivers	36
two electrode	36
exclaimed bob	36
mountain pass	36
one another	35
soft iron	35
look like	35
loop aerial	35
hot wire	35
rd street	35
sent postpaid	35
morse code	35
will take	35
long distance	35
now connect	35
agreed bob	35
east rd	35
every day	35
freda crisp	34
broadcasting station	34
current flowing	34
several times	34
moving picture	34
three electrode	34
tickler coil	34
take care	34
san francisco	34
detector receiving	34
magnetic modulator	34
wave telegraph	34
low voltage	34
even though	33
one hundred	33
two hundred	33
three times	33
wire ammeter	33
right angles	33
intermediate wave	33
radio outfit	33
pretty good	33
thousand miles	33
regenerative receiving	32
exclaimed joe	32
mile wireless	32
chapter xvi	32
will find	32
just like	32
looks like	32
first thing	32
many times	32
minutes later	31
inches long	31
new mexico	31
vacuum tubes	31
ocean point	31
grosset dunlap	31
little farncombe	31
south america	31
meter wave	30
just now	30
microphone transformer	30
one volt	30
feet long	30
one terminal	30
incoming signal	30
chapter iii	30
long enough	30
gabby pete	30
every time	29
copyright titles	29
positive plate	29
western union	29
don fernandez	29
binding post	29
will come	29
telephone transmitting	29
professor gray	29
years ago	29
make sure	29
grid condenser	29
two hours	28
asked mr	28
young fellow	28
friday island	28
replied joe	28
wireless room	28
magnetic field	28
aerial ammeter	28
negative plate	28
marjorie dean	28
takes place	28
telegraph transmitters	28
thousand dollars	28
receiving apparatus	28
doctor dale	28
york illustration	28
boys series	28
amplifying tubes	28
telegraph company	28
brownell place	27
wireless station	27
father felipe	27
captain manning	27
telephone transmitters	27
cloth bound	27
whole thing	27
tube acts	27
cried bob	27
starfish cove	27
uncle gem	27
three hundred	27
several days	27
one direction	27
transmitting sets	27
oscillation choke	26
water pipe	26
asked herb	26
just described	26
great deal	26
miss berwick	26
closed oscillation	26
five hundred	26
outside world	26
wave set	26
came back	26
asked frank	26
wave receiving	26
high potential	26
go along	26
regenerative circuit	26
opposite direction	26
roddy homfray	26
young aeroplane	26
picture boys	26
two watt	26
tube amplifier	26
pretty soon	26
positive electrode	26
will make	26
told us	25
will see	25
current flows	25
volt storage	25
calomares ranch	25
wireless receiving	25
aerial switch	25
radio corporation	25
cusco hurrin	25
sliding contact	25
single wire	25
way back	25
big bob	25
electrode tube	25
incoming waves	24
remarked joe	24
wave regenerative	24
heterodyne receptor	24
wire aerial	24
chapter ix	24
carl lutz	24
young renaud	24
old boy	24
aeroplane scouts	24
cycles per	24
pretty well	24
amplifying receiving	24
good idea	24
know anything	24
pulsating direct	24
bell telephone	24
wireless operator	24
plate potential	24
dan cassey	24
will go	24
purcell sandys	24
tube receiving	23
every one	23
electric light	23
well enough	23
one man	23
never mind	23
fine wire	23
park lane	23
asked joe	23
next connect	23
lightning arrester	23
will serve	23
remarked bob	23
poor old	23
will receive	23
wad sus	23
heterodyne receiving	23
know something	23
secret service	23
close together	23
welling wood	23
ever since	22
aerial condenser	22
first wireless	22
camp fire	22
dry cells	22
shunted around	22
current strength	22
declared bob	22
one way	22
will stand	22
something else	22
cell battery	22
low voice	22
see transformer	22
chapter xv	22
radio inspector	22
five thousand	22
panel cut	22
exclaimed jimmy	22
old rector	22
next time	22
magnet wire	22
leak resistance	22
separate heterodyne	22
better results	22
transmitting station	22
magnetic lines	22
much better	21
returned bob	21
wire wound	21
good enough	21
titles price	21
secondary circuit	21
one time	21
hard work	21
asked jack	21
wireless work	21
sending messages	21
rex rutherford	21
take place	20
much like	20
old fellow	20
sir charles	20
large number	20
amplifying tube	20
antenna circuit	20
current transformer	20
old mr	20
made like	20
bound copyright	20
outdoor chums	20
help us	20
see coils	20
telephone induction	20
asked jimmy	20
never thought	20
golden boys	20
chapter xii	20
voltage direct	20
exclaimed herb	20
chapter viii	20
plate voltage	20
amplifier receiving	20
top view	20
best results	20
replied mr	20
slide tuning	20
older men	20
will send	20
key circuit	20
wait till	20
wall street	20
reactance coil	20
sure enough	20
filter condensers	20
fire girls	20
apparatus layout	20
lighting current	20
contact points	20
good results	20
high priest	19
free end	19
high power	19
two years	19
will probably	19
hundred years	19
direct currents	19
power plant	19
exactly like	19
inch spark	19
edna manners	19
will happen	19
sometimes called	19
captain jan	19
chapter xviii	19
various parts	19
alexander graham	19
without wires	19
never heard	19
cried frank	19
five miles	19
either side	19
miss sandys	19
get one	19
chapter xvii	19
four men	19
anything like	19
caught sight	18
one aerial	18
pretty hard	18
chapter vii	18
say anything	18
chapter iv	18
graham bell	18
frequency transformers	18
one grid	18
radio compass	18
don sturdy	18
boys looked	18
back toward	18
three hours	18
two days	18
roy stone	18
lord beyond	18
jimmy bobb	18
take us	18
street new	18
sulphate ions	18
good luck	18
next moment	18
colored wrappers	18
oscillating current	18
ten minutes	18
loading coils	18
quenched spark	18
positive part	18
radio man	18
mrs bentley	18
loud speakers	18
little time	18
negative electrode	18
ranger boys	18
volt alternating	18
wound coils	18
brother gregorio	18
telephone system	18
chapter xiv	18
simple vacuum	18
dry battery	18
radio receiving	18
storage batteries	18
wireless communication	18
radio work	18
young homfray	18
megohm grid	18
protective condenser	18
chapter vi	18
audion characteristic	18
get along	18
will work	18
one else	17
well known	17
uncle sam	17
young edison	17
positive terminal	17
half dozen	17
asked dick	17
electrons will	17
negative terminal	17
insulated copper	17
will cost	17
older man	17
sulphuric acid	17
miles distant	17
like one	17
long way	17
wireless apparatus	17
fifteen minutes	17
coil wound	17
must get	17
two coils	17
metal plate	17
primary circuit	17
rotary spark	17
variable resistance	17
moments later	17
two thousand	16
right hand	16
chapter xiii	16
whole lot	16
hard rubber	16
sub chaser	16
nothing else	16
three days	16
new jersey	16
three coil	16
finally connect	16
looked like	16
putnam hall	16
hundred dollars	16
never get	16
shook hands	16
four hours	16
bud replied	16
left behind	16
tube used	16
tower room	16
leyden jar	16
secondary coils	16
captain bartlot	16
better go	16
old gentleman	16
amplifier tubes	16
current power	16
added joe	16
loading coil	16
set fig	16
microphone modulator	16
must use	16
open circuit	16
see vacuum	16
seaver bay	16
one hand	16
young men	16
main street	16
bob layton	16
fifty miles	16
next instant	16
motor generator	16
tuning fork	16
shall see	16
columbia high	16
transformer amplifying	16
palace guard	16
long breath	16
great ship	16
chapter xi	16
might get	16
see aerial	16
double slide	16
chapter ii	16
hour later	16
wireless set	16
frequency amplifier	16
new series	16
world war	15
good time	15
wireless outfit	15
ferberton prize	15
know whether	15
one night	15
coil cd	15
cried jack	15
young fellows	15
woman crisp	15
blocking condenser	15
joe marion	15
good old	15
first one	15
radio communication	15
asked bud	15
one vacuum	15
mighty glad	15
will never	15
chapter xx	15
current will	15
chapter xix	15
many things	15
boy troopers	15
old mexico	15
receiving end	15
agreed joe	15
different parts	15
better way	15
suggested joe	15
jack binns	15
turned away	15
four hundred	15
power house	15
wireless stations	15
poor jimmy	15
mexican border	15
get hold	15
young people	15
much less	15
never saw	15
individual colored	15
big fellow	15
never seen	15
large enough	15
good many	15
hand side	15
moorish minister	15
will keep	15
many electrons	15
feet high	15
telephone line	15
wave form	15
tension condenser	14
everything else	14
cotton covered	14
one pair	14
filter reactor	14
national electric	14
regenerative action	14
secret tower	14
much time	14
making good	14
high resistance	14
mr rutherford	14
uncle george	14
ohm head	14
done connect	14
zinc pole	14
retorted jimmy	14
diagram fig	14
sharpe gauge	14
good thing	14
high tension	14
coil loose	14
good aerial	14
bronze wire	14
electric pressure	14
oscillation arc	14
something new	14
make good	14
covered magnet	14
de arguello	14
wound inductance	14
amateur license	14
electrons away	14
see coil	14
five minutes	14
grid voltage	14
handsome woman	14
makes contact	14
somebody else	14
twenty miles	14
tuning coils	14
telegraph signals	14
hal replied	14
schematic diagram	14
cried herb	14
many years	14
carbon pole	14
coil tuner	14
blue eyes	14
radio sets	14
lem hicks	14
receiving aerial	14
different ways	14
three men	14
considerable distance	14
cross section	14
fixed condensers	14
get started	14
every word	14
strong enough	14
given length	14
wireless headphone	14
apparatus required	14
admitted bob	14
feel like	14
got something	14
asked hal	13
will flow	13
may come	13
better get	13
days ago	13
get around	13
complete sending	13
seemed like	13
get home	13
half way	13
spark coils	13
secret radio	13
terry mooney	13
got back	13
make trouble	13
sounds like	13
electron streams	13
receive messages	13
curlie carson	13
de avilar	13
brownell house	13
longest wave	13
half hour	13
must keep	13
just wait	13
metal plates	13
aunty bixby	13
big house	13
filament rheostat	13
nothing better	13
never dreamed	13
coles masters	13
next second	13
trap door	13
good fortune	13
sodium atom	13
wireless waves	13
living room	13
many days	13
leaned forward	13
professor thomson	13
cried joe	13
regenerative set	13
make one	13
mr barclay	13
replied jimmy	13
will show	13
girl scouts	13
likely enough	13
different kinds	13
two older	13
rotary gap	13
old davey	13
ten feet	13
every minute	13
generator set	13
turned back	13
volume control	13
last summer	13
robinson crusoe	13
telephone messages	13
power stations	13
young girl	13
just think	13
days later	13
natural frequency	13
toward home	13
two electrons	13
four boys	13
hiding place	13
single coil	13
middle spreader	12
young lady	12
condenser connected	12
cruiser comerford	12
two tubes	12
father will	12
six step	12
three chums	12
telegraph line	12
low frequency	12
old thing	12
radio expert	12
million dollars	12
simplest type	12
mountain rest	12
wireless man	12
microfarad variable	12
wire filament	12
got away	12
connected across	12
mutual induction	12
get something	12
receiving circuits	12
insulating material	12
voltage current	12
three thousand	12
potential difference	12
last letter	12
generally used	12
gap lightning	12
far enough	12
allen chapman	12
current motor	12
hear anything	12
wave receptor	12
coupler tuner	12
see ammeter	12
receiving circuit	12
ten years	12
western electric	12
wired wireless	12
way along	12
mighty good	12
jimmy plummer	12
resistance unit	12
wireless messages	12
two different	12
will vibrate	12
see discharge	12
ground connection	12
go home	12
jack hampton	12
chapter xxv	12
every volume	12
best thing	12
joel banks	12
send messages	12
heterodyne long	12
feet away	12
one ampere	12
radio receiver	12
distance wireless	12
atomic loops	12
see code	12
great scott	12
page appendix	12
chapter xxii	12
gladys ardmore	12
norton homfray	12
main road	12
fell back	12
walter king	12
radio apparatus	12
volume complete	12
whole affair	12
chapter xxi	12
telephone art	12
every man	12
easiest way	12
see battery	12
little way	12
chapter xxiii	12
current must	12
replied larry	12
chapter xxiv	12
will call	12
coil circuit	12
first post	12
initial source	12
grid will	12
grid positive	12
little bit	12
power circuit	12
will look	12
see resistance	12
sensitive element	12
use either	12
oscillations will	12
grid leaks	12
present time	12
twenty feet	12
bob nodded	12
will hear	12
great eastern	12
now suppose	12
pretty near	12
copper atom	12
tube telegraph	12
must know	12
sending apparatus	12
coupled circuits	12
electrolytic interrupter	12
broadcasting stations	12
old brownell	11
will carry	11
two small	11
agreed herb	11
old curmudgeon	11
old woman	11
large inductance	11
gathered around	11
copper sulphate	11
forest fires	11
will know	11
replied herb	11
ranch house	11
pretty nearly	11
higher voltage	11
series condenser	11
insulated wire	11
gem renaud	11
international morse	11
elma sandys	11
detector set	11
following day	11
next room	11
radio room	11
great man	11
next week	11
morrow night	11
much chance	11
international code	11
port hope	11
going back	11
say something	11
boys trailing	11
back home	11
sound came	11
electric currents	11
boat tom	11
electric spark	11
one ohm	11
two circuits	11
ear phones	11
make use	11
alfred vail	11
see page	11
electric co	11
given us	11
per cent	11
another way	11
come across	11
every boy	11
large part	11
two plates	11
died away	11
mechanical vibrations	11
wonderful things	11
frequency oscillations	11
much longer	11
just one	11
early morning	11
say nothing	11
service duty	11
may get	11
anybody else	11
grinned bob	11
way around	11
much good	11
line radio	11
will also	11
revenue guards	11
must go	11
sure thing	11
two wires	11
left hand	11
two kinds	11
extra electrons	11
alvin baker	11
run away	11
head set	11
temple home	11
two electrodes	11
dear son	11
last time	11
frank nodded	11
will want	11
get us	11
explained bob	11
one oscillation	11
walked away	11
millionth part	11
good ground	11
two feet	11
turned toward	11
landing field	11
ever heard	11
coil ab	11
six hundred	11
one arm	11
sending key	11
colonel graham	11
near enough	11
three years	11
asked cub	11
engine room	11
poor fellow	11
tuned circuit	11
distance away	11
wire point	11
several minutes	11
arthur porter	11
south american	10
air core	10
fixed electrodes	10
black eyes	10
set will	10
opposite side	10
exclaimed curlie	10
know nothing	10
fig now	10
diagram showing	10
heterodyne oscillations	10
hampton ranch	10
vincent ardmore	10
radiophone station	10
look around	10
easy enough	10
getting back	10
aerial series	10
chapter twenty	10
certain amount	10
two variable	10
considerable time	10
thousandth part	10
one will	10
watt tube	10
smallest size	10
air molecules	10
magnetic units	10
mohammed ben	10
boys went	10
rocky point	10
blue grass	10
radio stations	10
see frequency	10
senor de	10
first telephone	10
answered bert	10
getting pretty	10
electric wave	10
see coupling	10
senorita rafaela	10
navigating officer	10
choke coils	10
oscillations surge	10
man named	10
inquired mr	10
fire underwriters	10
joe atwood	10
electrical supply	10
laughed bert	10
coupled tuner	10
tube detectors	10
thousand islands	10
submarine cable	10
drift ice	10
fairly well	10
condenser across	10
stormy petrel	10
get even	10
far better	10
practical use	10
demanded bob	10
sending sets	10
distant station	10
jack lorimer	10
price cents	10
experimental transmitter	10
hydrogen ions	10
one plate	10
great city	10
farther away	10
jack turned	10
grass seminary	10
little party	10
close enough	10
positive voltage	10
current sets	10
donna ana	10
movable contact	10
ben mussa	10
six feet	10
connect clip	10
second post	10
watt tubes	10
simple receiving	10
rectifier tubes	10
rest hotel	10
negative electrons	10
coupled together	10
grid becomes	10
electric lights	10
conducting path	10
three radio	10
copper wires	10
four times	10
get anything	10
states navy	10
laughed larry	10
keep us	10
way home	10
wave sets	10
roof tree	10
second circuit	10
transmitter fig	10
boys rescue	10
three weeks	10
old moor	10
previous night	10
regenerative amplification	10
one rheostat	10
detector circuit	10
atlantic cable	10
wireless press	10
will soon	10
soon found	10
see gap	10
see waves	10
regenerative receiver	10
midnight call	10
like nothing	10
whose frequency	10
see wired	10
three miles	10
mile away	10
false teeth	10
others agreed	10
inch thick	10
second tube	10
little man	10
moved away	10
time ago	10
trade name	10
two things	10
little group	10
bob went	10
must take	10
will say	10
efficient regenerative	10
will let	10
alaska expedition	10
rectifier vacuum	10
arc lamp	10
never forget	10
currents surge	10
radio operator	10
porcelain insulators	10
direct lighting	10
trademark registered	10
two binding	10
cried mr	10
will respond	10
tube rectifier	10
new set	10
two atoms	10
buy one	10
antenna lead	10
little later	10
volt dry	10
whole world	10
mr rex	10
useful information	10
damped waves	10
lost alaska	10
distress call	10
radio telephony	10
frequency alternating	10
thomas alva	10
current whose	10
two words	10
ordinary telephone	10
may use	10
frequency amplification	10
commercial alternating	10
incoming signals	10
go now	10
senor hampton	10
shown complete	10
park place	10
voltage secondary	10
one variometer	10
iron pyrites	10
eight hundred	10
one watt	10
phosphor bronze	10
uniform style	10
great advantage	10
us go	10
second thought	9
two sailors	9
oil operators	9
perry announced	9
make contact	9
different lengths	9
every muscle	9
protested bob	9
silver fox	9
hour ago	9
face grew	9
walked along	9
motor car	9
positive pole	9
right along	9
way across	9
telegraph messages	9
answered jack	9
remarked mr	9
working order	9
looked straight	9
hear something	9
transmitting apparatus	9
never knew	9
latter will	9
cub replied	9
radio table	9
come around	9
much money	9
telegraph wires	9
ever seen	9
one eye	9
first mate	9
long arm	9
almost anything	9
wonderful thing	9
sea water	9
acts like	9
buenos ayres	9
miss elma	9
many others	9
hertzian waves	9
maine woods	9
laughed herb	9
american telephone	9
big sandy	9
dear old	9
business men	9
tube transmitter	9
forest preserve	9
chan chan	9
shore stations	9
supper time	9
best way	9
ten thousand	9
great idea	9
old homfray	9
boys knew	9
running away	9
listened intently	9
might make	9
independent oil	9
alva edison	9
electric arc	9
glass wheel	9
new idea	9
went along	9
fellows will	9
even now	9
often called	9
three sizes	9
sliding contacts	9
will tell	9
secret passage	9
farncombe towers	9
states government	9
fig suppose	9
responded bob	9
see anything	9
young inventor	9
core transformer	9
called bob	9
great square	9
far end	9
first message	9
chief engineer	9
one big	9
small amount	9
mrs crisp	9
general public	9
hundred thousand	9
miss faulkner	9
get rid	9
whispered frank	9
single tube	9
considerable distances	9
last word	9
first thought	9
returned mr	9
two chums	9
old claribut	9
north pole	9
spent many	9
boys watched	9
grumbled jimmy	9
ever happened	9
good news	9
bob replied	9
herb fennington	9
two sets	9
remarked herb	9
musical telegraph	9
right amount	9
thousand times	9
various pieces	9
fox patrol	9
good night	9
exclaimed bud	9
insulating compound	9
three companions	9
one step	9
nineteenth century	9
lot better	9
getting ready	9
port huron	9
exciting adventures	9
business man	9
us much	9
measuring instrument	9
patent office	9
bob told	9
keep still	9
good things	9
boys heard	9
little difficulty	9
went back	9
gerald breckenridge	9
see fig	9
little old	9
using two	9
code messages	9
one thousand	9
standard cell	9
held prisoner	9
last two	9
cub inquired	9
every second	9
less time	9
number one	9
next year	9
chlorine atom	9
just got	9
grid potential	9
new radio	9
humming bird	9
went away	9
controlled plane	9
fifteen years	9
true enough	9
declared joe	9
must try	8
filter reactance	8
atlantic ocean	8
see appendix	8
will move	8
dear boy	8
radio telephone	8
contact arm	8
receiving condenser	8
old scout	8
many people	8
bar magnet	8
months ago	8
island prisoner	8
will develop	8
regenerative audio	8
short distances	8
old mrs	8
never know	8
zinc plate	8
old skipper	8
may seem	8
old friend	8
young folks	8
condenser discharges	8
see current	8
states patent	8
fifteen miles	8
one panel	8
de pereira	8
boys made	8
might well	8
fine insulated	8
planetary electrons	8
wireless receptor	8
current flow	8
tuning inductance	8
closed circuits	8
much interested	8
must remember	8
several moments	8
one variocoupler	8
mutual inductance	8
much gold	8
different pieces	8
answered herb	8
without difficulty	8
far behind	8
time since	8
watt vacuum	8
last year	8
adjusting screw	8
last evening	8
potential alternating	8
two oscillator	8
loop antenna	8
gray ghost	8
made without	8
short waves	8
bob explained	8
will depend	8
much greater	8
moist earth	8
boys felt	8
little shack	8
large current	8
years old	8
set includes	8
two others	8
distance telephone	8
without connecting	8
laughed joe	8
water flowing	8
just right	8
audion oscillator	8
zero volts	8
large resistance	8
periodic oscillations	8
shunted across	8
designed especially	8
must come	8
others followed	8
middle coil	8
one wire	8
several different	8
hampton nodded	8
ruth salper	8
police station	8
bertram harrison	8
oscillator vacuum	8
previous day	8
suggested bob	8
railroad series	8
one battery	8
coming along	8
speech significance	8
hundred pounds	8
canadian amateur	8
cub admitted	8
steady stream	8
see circuit	8
will surge	8
went forward	8
little better	8
small boat	8
electric resonance	8
cascade amplification	8
jack shook	8
wireless mystery	8
hal inquired	8
charles wheatstone	8
radio fans	8
free terminal	8
edison storage	8
bob answered	8
see wave	8
bob curtis	8
great interest	8
leak around	8
skin effect	8
old clergyman	8
quenched gap	8
air gap	8
one corner	8
states naval	8
wireless systems	8
go right	8
two months	8
amateur stations	8
local battery	8
made especially	8
tube will	8
separate vacuum	8
simple telegraph	8
time came	8
liquor smuggling	8
young operator	8
crystal wheel	8
might find	8
uniform cross	8
ohmic resistance	8
frank took	8
leaned back	8
carried away	8
oscillation tube	8
bob saw	8
tuning forks	8
magnet coils	8
charged positively	8
found mr	8
good one	8
wire systems	8
dozen times	8
inspector condon	8
forest rangers	8
bob thoughtfully	8
new one	8
safety match	8
radio concert	8
experimental line	8
match box	8
big game	8
quite certain	8
boys will	8
big car	8
victor appleton	8
came rushing	8
see modulation	8
time passed	8
people will	8
condenser used	8
carrier frequency	8
inside coil	8
second later	8
flow back	8
sustained mechanical	8
wire will	8
soon find	8
kilowatt transformer	8
mile transmitter	8
get help	8
electromagnetic induction	8
ever see	8
receiving tuning	8
speaker fig	8
front door	8
motor boats	8
radio silence	8
frank merrick	8
somewhere else	8
move back	8
government will	8
might mean	8
oscillation transformers	8
will mean	8
tube transmitters	8
iron cores	8
little farther	8
volt battery	8
almost impossible	8
use two	8
larry bartlett	8
good set	8
little doubt	8
came forward	8
sending room	8
single watt	8
resistance coupled	8
point near	8
positive particles	8
hours later	8
long since	8
steel spring	8
many hours	8
several hours	8
compact coils	8
will help	8
old house	8
perry replied	8
ground clamp	8
getting along	8
transcontinental telephone	8
negative electricity	8
circuit reactor	8
go around	8
internal resistance	8
outside ground	8
knew nothing	8
felt sure	8
radio waves	8
gives us	8
wireless message	8
filament voltmeter	8
tells us	8
four watt	8
rebel headquarters	8
morse telegraph	8
madame nicole	8
chapman author	8
closed magnetic	8
long ago	8
liquor smugglers	8
sending wireless	8
low tone	8
one described	8
common sense	8
easy matter	8
smiled bob	8
let alone	8
general call	8
boys saw	8
civil war	8
ever saw	8
wireless key	8
positive electricity	8
mining engineer	8
two variometers	8
little money	8
radio equipment	8
beat method	8
either telegraphic	8
well satisfied	8
might come	8
every direction	8
aerial wires	8
last one	8
frederick collins	8
three variable	8
boys found	8
young friend	8
face became	8
negative voltages	8
just come	8
telephone wires	8
incandescent lamp	8
sets described	8
big enough	8
high enough	8
swift among	8
suggested herb	8
felt certain	8
two chief	8
largest radio	8
rubber tubes	8
see currents	8
bob turned	8
cub demanded	8
end spreaders	8
large capacitance	8
good ship	8
great lakes	8
middle post	8
printing office	8
saw mr	8
eyes open	8
summer vacation	8
inches square	8
experimental continuous	8
government troops	8
sounding box	8
receive waves	8
ever get	8
five dollars	8
power station	8
step forward	8
see amplification	8
five years	8
one tuning	8
roderick homfray	8
thing happened	8
electricity transferred	8
mighty lucky	8
sharp tuning	8
greatly interested	8
familiar voice	8
little distance	8
added herb	7
may prove	7
fresh air	7
swept away	7
paddy ryan	7
another moment	7
either one	7
much obliged	7
little room	7
man turned	7
properly designed	7
shall go	7
hurried away	7
radio fan	7
pushed back	7
explained mr	7
vice versa	7
gone far	7
low tones	7
remained silent	7
like many	7
simplest form	7
different wave	7
snow barrens	7
one fixed	7
wire made	7
wireless headphones	7
telephone set	7
transmitting stations	7
black hair	7
oxygen atoms	7
wave motion	7
amateur radio	7
fairly good	7
dark eyes	7
young american	7
just finished	7
little thing	7
another word	7
zinc ions	7
started toward	7
fifty years	7
lumber camp	7
moorish government	7
will pass	7
agreed jimmy	7
see whether	7
smiled mr	7
heart beat	7
bill brown	7
receiving outfit	7
six months	7
one tube	7
union telegraph	7
came running	7
left alone	7
salt water	7
great dirigible	7
dining room	7
terrible thing	7
feed back	7
battery circuit	7
voltage applied	7
stood open	7
time now	7
long waves	7
contents chapter	7
way toward	7
sodium ion	7
good work	7
top speed	7
tell mr	7
go toward	7
sunday night	7
max handy	7
get tired	7
aerial will	7
sat silent	7
mysterious island	7
goodness knows	7
next letter	7
whole story	7
waves sent	7
tufts college	7
truth concerning	7
open area	7
eyed man	7
bob took	7
herr kommander	7
first great	7
many different	7
good friends	7
boys crowded	7
either end	7
turn back	7
another thing	7
will now	7
simplest kind	7
sensitive spot	7
telegraph system	7
us now	7
will run	7
bad enough	7
keenest interest	7
lighting circuit	7
every hour	7
radio signals	7
receiver diaphragm	7
oscillating tube	7
door open	7
last message	7
opposite directions	7
returned herb	7
added jimmy	7
bud declared	7
nobody ever	7
boys got	7
three dots	7
act like	7
constant touch	7
ten miles	7
taking care	7
momentary current	7
added bob	7
strained attention	7
will stay	7
negative charge	7
may find	7
complained jimmy	7
distant sending	7
tunnel way	7
ancient workings	7
next move	7
know enough	7
bert wilson	7
general way	7
hundred yards	7
must see	7
spoken word	7
american lads	7
getting away	7
good humor	7
walked back	7
walter replied	7
plate battery	7
know just	7
electrons playing	7
spark frequency	7
several ways	7
within range	7
one great	7
large amount	7
longer wave	7
carbon granules	7
looking man	7
radio receivers	7
fast enough	7
electric motor	7
shouted bob	7
waves set	7
boys listened	7
modern world	7
big one	7
feel sure	7
old gem	7
use one	7
fifty feet	7
still another	7
thirty miles	7
variable inductance	7
sound wave	7
playing around	7
nellie berwick	7
saturday afternoon	7
two parts	7
will remember	7
hold back	7
modulator tube	7
taken away	7
going home	7
make us	7
two inches	7
boys set	7
speed boat	7
nodded agreement	7
set eyes	7
three feet	7
gold medal	7
always wanted	7
observed mr	7
telegraph set	7
current without	7
local oscillator	7
audion tube	7
settled back	7
without warning	7
galena crystal	7
threw back	7
far apart	7
every side	7
time enough	7
must find	7
old timer	7
slightly different	7
several hundred	7
one hot	7
fly back	7
sharper tuning	7
bell company	7
radio enthusiast	7
voice came	7
hyde park	7
set without	7
ear pieces	7
must never	7
outer valley	7
used instead	7
know much	7
eiffel tower	7
observed joe	7
pencil line	7
jan bartlot	7
never fear	7
vocal cords	7
capacity effects	7
listened attentively	7
turn around	7
shall describe	7
every part	7
much larger	7
breathless interest	7
one inch	7
government license	7
one accord	7
least one	7
shall tell	7
per minute	7
close behind	7
two separate	7
huge ship	7
little trouble	7
insurance company	7
talk back	7
will produce	7
young rodriguez	7
alfred brightwood	7
leyden jars	7
safe conduct	7
telegraph operator	7
laughed mr	7
old chap	7
hanging around	7
control knob	7
two young	7
two weeks	7
tube circuits	7
agreed mr	7
bell rang	7
answer came	7
hampton looked	7
now take	7
hydrogen atom	7
hampton shook	7
started back	7
man called	7
without even	7
narrow escape	7
elder man	7
second time	7
dad says	7
good plan	7
heterodyne method	7
much trouble	7
andrew barclay	7
true bearing	7
father replied	7
land stations	7
almost every	7
first amplifier	6
must say	6
shall call	6
ever hear	6
audion amplifier	6
bob enthusiastically	6
two dots	6
drew back	6
frequency oscillating	6
simple transmitting	6
another message	6
exclaimed mr	6
two cars	6
hurry back	6
potentiometer around	6
us something	6
others looked	6
hal stone	6
small end	6
move along	6
current varies	6
exclaimed cub	6
greater will	6
get ready	6
detector filament	6
port jefferson	6
heavy wire	6
two miles	6
boys stared	6
natural period	6
well aware	6
cub declared	6
sent across	6
big hotel	6
thousand pounds	6
filter condenser	6
connecting wires	6
ever knew	6
made one	6
telephone receiving	6
apple pie	6
opposite end	6
grouped together	6
single oscillator	6
filament secondary	6
opposition offered	6
government printing	6
six inches	6
battery will	6
voltage currents	6
current stops	6
negative voltage	6
another time	6
public service	6
large currents	6
little speed	6
radio transmitter	6
stone steps	6
honeycomb coils	6
grinned herb	6
symbols used	6
easily enough	6
groaned jimmy	6
government station	6
make things	6
half mile	6
one evening	6
good way	6
receiver case	6
telephone sets	6
blub blub	6
receiving antenna	6
smaller one	6
chapter xxvi	6
four years	6
one might	6
high frequencies	6
short cut	6
next chapter	6
shall find	6
ball insulators	6
preceding chapter	6
forty thousand	6
experimental set	6
times per	6
using one	6
still smaller	6
better look	6
days passed	6
open core	6
one cell	6
one megohm	6
permanent steel	6
near port	6
lead sulphate	6
everybody else	6
declared cub	6
circuits connected	6
stand volts	6
develops volts	6
every night	6
montauk point	6
jimmy came	6
almost entirely	6
filament storage	6
come forward	6
amateur wireless	6
carrier current	6
porcelain base	6
better make	6
hugh willard	6
just get	6
boys followed	6
cycle current	6
captain guascar	6
part played	6
microphone modulators	6
will hold	6
dick allen	6
radio broadcasting	6
boys started	6
poor girl	6
outside coil	6
lamp socket	6
cableless stations	6
show us	6
human speech	6
nodded approval	6
connected directly	6
full details	6
upper hand	6
radio call	6
radio service	6
dave morningstar	6
magnetic flux	6
dear young	6
back circuit	6
blocks away	6
might think	6
separate parts	6
heard nothing	6
hard voice	6
glass jar	6
general electric	6
replied bert	6
telephone company	6
ice cream	6
begin wireless	6
funny thing	6
distress signal	6
william thomson	6
circuit will	6
heterodyne oscillator	6
made possible	6
stood still	6
say good	6
two general	6
get well	6
gauge cotton	6
changing commercial	6
must always	6
answered tom	6
needle telegraph	6
following message	6
bob made	6
inductively coupled	6
de forest	6
printing press	6
president obregon	6
spark will	6
transmission will	6
now look	6
us away	6
closed core	6
boys stood	6
farther along	6
made exactly	6
story opens	6
filament circuit	6
end posts	6
current available	6
bob heard	6
many minutes	6
remarked jimmy	6
metal point	6
army train	6
one morning	6
control unit	6
emerson radio	6
positive half	6
whole business	6
step audio	6
good stead	6
hung suspended	6
boys began	6
last week	6
old book	6
motor truck	6
electrical apparatus	6
exclaimed larry	6
feed wires	6
help laughing	6
nearly two	6
rasco baby	6
curlie sat	6
will bring	6
electric energy	6
pretty bad	6
great hall	6
got another	6
high speed	6
must make	6
steel magnet	6
underhill road	6
good scheme	6
really good	6
take advantage	6
distance work	6
boys kept	6
powerful radio	6
will turn	6
eating contest	6
either kind	6
different frequencies	6
admitted jimmy	6
waited expectantly	6
pole switch	6
greater extent	6
see mr	6
took charge	6
one just	6
favorable conditions	6
currents set	6
radio sending	6
will cause	6
man went	6
steel bar	6
might give	6
certain number	6
pretty tired	6
bud suggested	6
pretty close	6
home town	6
us see	6
went home	6
rectifier tube	6
new haven	6
get another	6
olaf valchen	6
near future	6
closer together	6
set get	6
mexican bandits	6
many barbarians	6
perry smiled	6
stood silent	6
two minutes	6
see us	6
ordinary loose	6
professor henry	6
almost immediately	6
grinned joe	6
whisker contact	6
resistance coil	6
third electrode	6
started running	6
see static	6
growled buck	6
manhattan electrical	6
microfarad fixed	6
base line	6
old pomp	6
make anything	6
international boundary	6
dean high	6
radio men	6
telegraph code	6
large capacity	6
mile limit	6
messages without	6
two loops	6
two officers	6
frequency wave	6
rush together	6
many turns	6
field intensity	6
receiving continuous	6
amplifying modulator	6
guard room	6
bob grinned	6
will oscillate	6
second place	6
answered larry	6
close coupled	6
camp chair	6
effective value	6
two pairs	6
sense enough	6
also made	6
carrying messages	6
pretty much	6
scientific knowledge	6
one point	6
field radio	6
will vary	6
nobody else	6
supply co	6
parallel wires	6
benjamin franklin	6
handsome cloth	6
hal declared	6
little fellow	6
within ten	6
within two	6
quick action	6
crowded around	6
suggested mr	6
passed without	6
coils use	6
nearly three	6
grave danger	6
transmitter just	6
radio messages	6
came along	6
high spirits	6
receive wave	6
look back	6
sprang forward	6
got enough	6
appleton uniform	6
new world	6
gives better	6
probably will	6
dick answered	6
coil fig	6
throw switch	6
eyes twinkled	6
man whose	6
doctor maynard	6
charges rush	6
commercial success	6
getting something	6
parallel paths	6
last radiogram	6
lighting service	6
negative charges	6
positive ion	6
complete oscillation	6
blue glow	6
feet tall	6
two terminals	6
ran back	6
work well	6
greatest amount	6
boys took	6
length band	6
deaf mutes	6
inductive reactance	6
good job	6
good compact	6
boys came	6
golden gate	6
several years	6
great guns	6
seminary girls	6
see circuits	6
railroad station	6
rotating coil	6
fixed receiving	6
stranded wire	6
diaphragm moves	6
answered mr	6
somewhere along	6
either case	6
kommander brandt	6
working together	6
without success	6
little portable	6
crystal detectors	6
bed springs	6
riddle club	6
next step	6
two great	6
two big	6
quiet old	6
boys waited	6
ensign robert	6
square root	6
water molecules	6
distance transmitter	6
receiving oscillation	6
started forward	6
public correspondence	6
marjorie faulkner	6
battery rheostat	6
telephonic speech	6
metal points	6
strange thing	6
get near	6
good friend	6
far distant	6
thing happens	6
one look	6
aluminum wire	6
jack called	6
disruptive discharge	6
aerial counterpoise	6
inches apart	6
well go	6
seems like	6
plate glass	6
electrical tuning	6
van granger	6
morrow morning	6
worked hard	6
good reason	6
better take	6
years older	6
electromagnetic waves	6
found dead	6
station selector	6
old world	6
brought us	6
zukor androka	6
early days	6
just let	6
cub announced	6
sustained electric	6
first watch	6
young feller	6
grid lead	6
central station	6
come right	6
gave way	6
hardware store	6
blinding flash	6
amplifying transformer	6
return home	6
specific gravity	6
thousand feet	6
marooned among	6
permanent magnet	6
high pitch	6
small condenser	6
first day	6
great world	6
five feet	6
may mean	6
attractive cover	6
next thing	6
watch case	6
learn something	6
commander curtis	6
cloth binding	6
asked larry	6
trembling fingers	6
will notice	6
thirty feet	6
seemed almost	6
spark telegraph	6
glass bulb	6
strike one	6
early life	6
get used	6
first two	6
boundary line	6
brisk pace	6
stowed away	6
still larger	6
hardly got	6
brandon harvey	6
spark sets	6
cover designs	6
somewhere near	6
free ends	6
tool house	6
foregoing chapters	6
important part	6
gave us	6
radio business	6
fixed resistance	6
another hour	6
volt current	6
shortly afterward	6
see condenser	6
rear admiral	6
electric safety	6
drew near	6
two points	6
spring clip	6
first part	6
office department	6
great white	6
hard luck	6
standing beside	6
ground floor	6
firing line	6
start back	6
miles long	6
school series	6
whispered jack	6
receiving stations	6
come now	6
secondary current	6
general amateur	6
spongy lead	6
many months	6
even jimmy	6
dropped back	6
may well	6
doctor says	6
may even	6
bob began	6
two letters	6
landing place	6
entirely new	6
bob put	6
war vessels	6
eyes met	6
seemed little	6
boys broke	6
cat whisker	6
electric tuning	6
telephone lines	6
adam mcnulty	6
charging current	6
oscillations fig	6
following monday	6
certain wave	6
acoustic resonance	6
develop volts	6
tube made	6
works fig	6
will allow	6
jack thought	6
got started	6
passed along	6