White Pine news. [volume] (East Ely, Nev.) 1920-1923, 1922-11-26
THE HOME RADIO
u..,to NIL. IJsaH 90 By A. HYATT vERRILL
y " Aoh oi1 cnnhtby Hapu& Brothers
XIV. USEFUL THINGS TO REMEMBER

as efficient as a vacuum-tube set, no
matter what sort of equipment you
use.
That a crystal detector set cannot
be satisfactorily anplified.
That most small or cheap sets can
not tune out local interferences.
That grid-leaks are NOT used on
crystal detector sets. but only on
vacuum-tube sets.
That a large tuning-coil with wires
spaced closely will give better results
than a short coll OF one with wires
Gar apart.
That a va~rio-condenser and Z loose
coupler gives finer tuning.
That Il vacuum-tube is about thirty
That a wave length has little to do
with tie distance you can receive.
That 1900 ohm receivers will often
raise a cheap set from inefliciency to
excellency.
That a loading-coil is not needed
with a loose-coupler and varlable-con-
denser.
That if two or more crystal sets are
used OF one aerial only one can be
used At one time and a switch must
be provided to throw sets out and In.
That a loose-eoupier is better than
a tuning-coil.
That a -loose-eoupler should be
placed between aerial and ground.
That money saved in buying cheap
head phones or receivers Is really
thrown away and that n great deal
depends upon the phones.
That aerlals and lead-ins should be
shunted across head-set.
That in setting up IN aerial n long
wire Is better than many shorter ones.
That the lead-in counts and a long
lead-ln Is an advantage.
That aerlals and lead-ins should be
insulated from everything else.
That ~aerials should be placed as
high as possible.
That when placing aerial neal ele,
waited structures. wires, bridges, or
steel buildings 1t should be placed at
right angles to them and as far away
as possible.
That I strand. phosphor-bronze wire
is the best for ~aerlals. but ordinary
No. II copper wire will do.
That continuous waves penetrate
everything.
That the lead-ln from aerial should
be at end of aerial which Is towards
the sending station you most often
wish to hear.
That aerial d>s not have to be
horizontal.
That for sending. a many.wire
aerial is far better than a single wire.
That a 'counterpoise Is better than
ground, particularly In sending.
That an indoor wire will serve for
an aerial, but is not so good.
That an iron bedstead or springfield
will do for an aerial In case Of neces-
sity.
That the simplest and cheapest
vacuum-tube receiving set is better
than the best crystal set.
That the best form of receiving set
Is the regenerative set.
That q vacuum-tube or regeneratiye
set may be amplified to almost any
extent.
That an ordinary photograph horn
attached to a head telephone receiver
will Increase the sounds somewhat
and will act as a loud speaker.
That a variable-condenser helps fine
tuning.
That the hlament battery Of a
yacuum-tube set may be a dry bat
terry, but that 1t is more expensive
In the end than a storage battery.
That the Ultra Audlon circuit has
the plate circuit led back To the honey
comb-coll and amounts to a regenera-
tive set.
That the best type Of vaeuum-bulb
receiving set is the regenerative with
amplifers.
That each step Of ampliicatl0n re-
quires another tube.
That If there are too many turns
on the inductance they may be taken
Off to secure tuning.
That the distance you can receive
depends upon various climatic and
other conditions.
That the flament lighting does not
always mean the set Is operating prom
erly.
That IL filament rheostat Is turned
on suddenly the flament may be
paralyzed and must be left to recuper-
ate before 1t will glow.
That burning the filament too bright
ly merely wastes the flament and
chnrfanr the Iifn "a IL. 4l .t