The Wolf Point herald. (Wolf Point, Mont.) 1913-1940, 1922-09-07
3y'A. HYATT VERRILL
Copyright By Harper 4 Brothers

adding anything to the efficiency OF
set.
That a variable grid-leak can be
made with pencil marks on paper
and may be altered by erasing or add
ing lines.
t~ectors, others for amplihcation and
others for transmitting or as oscil-
lators.
That 1t is often cheaper to buy
r~eady-made accessories than to make
them.
That all joints in wires Except in
binding-posts) should be soldered.
That the ground connection should
be soldered to a water, gas or similar
pipe or to a large copper plate buried
In the ground.
That the steel girder or frame of a
building makes a good ground.
That sending or transmitting sets
must have a license to comply with
the law.
That the fire departments have spe-
cial regulations regarding the i~nstalla-
ton of aerlals.
That an aerial cannot be placed
across a street without permission.
That aerials do not attract light
ming and If provided with a gap or
lightning switch are perfectly safe.
That the best in the way of ma
terials is always cheapest In the end.
That when using a sending set the
low voltage should be turned on first
or the tube may be ruined.
That In a sending set the battery
should always be turned of from the
phone circuit when not In use.
That a sending set is always better
with a counterpoise than with a
ground.
That 1t does not pay to try to make
certain Instruments.
That while wireless telephones are
80 easily adjusted and simple 4 child
may use them, they are also very deli
cate affairs and are easily put out Of
adjustment OF ruined by carelessness.
That you must not expect too much
for your money In ready-made or home
made sets.
That a set may act very differently
on different days or under different
That you should not condemn your
until you r sura the
fault Is not In yourself.
That loose connections, poor insula-
ton, poor ground. poor joints in wires,
insulation, wires crossing and
many other small matters may put a
set completely out OF business.
That you can seldom improve upon
a ready-made set by adding anything
new set.
That every accessory or piece Of ap-
paratus Is made for a specific purpose
and that you should consult the manu-
facturers or dealers as to the best for
your purpose before purchasing.
That the most expensive sets are
not always the best, as oftentimes
finish, cabinets and elaborate fittings
add to cost without increasing ef1ci-
sncy.
That while a receiving set may be
made to go inside a safety match box
such things are merely toys and r
lot for household use.
That when a dealer advertises that
cheap set can receive signals from
| certain distance, be sure to find out
f he means code signals from radio
Geographic stations or sounds OF
music, etc. No one can guaran-
how far a set will receive as too
nany outside factors influence this.
That like everything else each and
very maker claims his sets are the
'est. Investigate several before buy
ng.
That anyone with the least me
hanical ability car build wireless
telephone sets If they purchase the
which require special knowledge.
kill or devices for making.
That the prices Of most sets do not
include batteries, tubes or phones.
That a storage battery must be re-
harged as soon as it becomes weak
r your set will not work.
That the vacuum-tube is one of the
nost delicate devices ever invented
nd should be treated accordingly.
That no license is required for re-
sets and the air is free to all
Tho want to listen-in.
That all broadcasting stations pub
sh their daily programs.
That the worst interferences are the
earby sending stations. SO don't add
D others troubles by sending unless
have good reasons or are sincere
your experiments.