White Pine news. [volume] (East Ely, Nev.) 1920-1923, 1922-11-26
a.
Copyright By Harper q Brothers

That n variable grid.leak can be
made with pencil marks on paper
and may be altered by erasing or add
ing lines.
That some tubes are best for de-
t~ectors, others for application and
others for transmitting or as oscil-
lators.
That IL is often cheaper to buy
ready-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 II 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 installa-
ton Of a%efials.
That IN aerial cannot be placed
across a street without permission.
That aerials do not attract light
ming md If provided with a Cup 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 off 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
so easily adjusted and simple a child
may use them, they are also very dell.
cate affairs and are easily put out of
adjustment or ruined by carelessness.
That you must not expect too much
for your money In ready-made or home
made sets.
That n set may act very differently
ON different days or under different
conditions.
That you should not condemn your
Instruments until you are SURE the
fault is not in yourself.
That loose connections, poor lnsula-
ton, poor ground, poor joints I'm wires.
worn 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
to II, but can do better by building n
new set.
That every accessory or piece Of ap-
p%aratus 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 efici.
ency.
That while Il receiving set may be
made TO go Inside "a safety match box
such things are merely toys and are
not for household use.
That when a dealer advertlses that
a cheap set can receive signals from
n certain distance, be sure to find out
II he mems code signals from radio
telegraphfc stations or sounds of
voices. music, etc. No one can guaran-
too bnkN for "a aat txf1I Vn..t.. -. -.
many outside factors influence this.
That like everything else each and
every maker claims his sets are the
best. Investigate several before buy.
Ing.
That anyone with the least me.
ehanical ability can build wireless
telephone sets If they purchase the
parts which require special knowledge,
skill or devices for making.
That the prices of most sets do not
include batteries, tubes or phones.
That a storage battery must be re-
charged ms soon as 1t becomes weak
or your set will moi ork.
That the vacuum-tuae is one of the
most delicate devices ever invented
and should be treated accordingly.
That no license Is required for re-
ceiying sets and the air Is free TO all
who want TO %llsten.in.
That all broadcasting stations pub.
lish their daily programs.
That the worst interferences are the
nearby sending stations. so don't add
to others troubles by sending unless
you have good reasons or are sincere
In your experiments.