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7
SPECIAI INSTRUCTIOI{S FOR 52
MC
UNITS
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]UNINC
THE
RF
PORTION
Cf
THE
RA\SMTfiEN
USING
A
IIILL]AMETER
Disconn€ct
o.e of
the 6?t
volt battery
tead5
and
insert
a
o-25
nllllameter rlth
the
plus
tead
going
to
the
plls teninal of the battery'
and
the
frinus lead
to the
snap
tn
co.necto.. s{itch the high-lo{ s{itch t. the
HlGq
posltion.
screw
the trimers
doM to
marlnum
capacttance,
use
an
insulat€d
sc.e{driver,
Turn
on
the tra.snitter fllan€nt
swttch. Culrent
will
be
about 24
na.
Rotate
tbe
prco
423
untll curFnt dlps,
and
then
tuh just a slight bit lu.the.. cuf€nt
readinq
wlll
be
abolt
14
na.
Rotate
the
3-13
fo!
another
dip.
This
one
will
be
vely sltqht,
only
about
l/r
ma.
Ihls finar dip
indicat€s
the Iast .t"ge i.
! -o to
'4
o'a- ..
a!. . oi..'
-o
variatlol.
o.paroi_o
not
only
on
the
condition
of the batteries, but also the
t,"pe
and
nake
of
freter lsed to
obtaln the
leadings.
the
readi.qs
are given
as
an
indtcatlon oniy, a.d if
there
is
a
vaF
iatlon in eithe! di.ection of
a
nillianpere
or
no.€! tt
does
not
necessarily
nea.
your
tlansmitter is not pe.lomt.g .ode.tly. lijith transnitter ssit.h i. the
LO,l
posltton
the
ntlliameta. rill
read
abDUt
6 ma.
(all or the
foregoins
readinqs are
without a t.ne
on)
lvith care, th€ f..€goi.q
tLning
nethod
for
th€
3-13
trim€r (finar) ts entirely
ad-
€quate.
G€ater
accuracy oa
Feakinq
can be
obtained by ustng
a lield stre.gth heter. llith
thls the fi.al is tu.ed to
provid€
the
Sreatest output
readinq.
Another
meth.d,
{hich i3
borrotrei
lrdfr th!
iam
o!
amateLr
fraternity!
hay
also
be
!te.l
tf.
Vtvn
(Vacun Tub€
vort yet4r) is availabl€.
ri4ake
sule
both
padders
are
close3, blt
not tight.
Set
Vi/fi
on
a
5
v.lt
DC
scale
and connect
the positive
lead
to any.oivenjent
ground
connection,
place
tte
negative
leaj.n pi.3--one convenient pla.. to
fasten
l-oa,j
ig
the
l00K
ftslsto. that is
between
the cr,,5tal
e..ke1
an. t.E coil.
Hjqh-Low
sritch
should
be
in qiqn..5iti.n,
!Lrn
on
tran5n:t1-r tiLanent. vTi'n rill
.ead 6bout
.3
volts. ,ltth ins!latei 5.reri.iver lnscre! rr.o
223,
try:n9 tc
achieve a
rat
inlh readinq--this will b.
about 1,2
v.lt5. llor
unscrei
the
3-13
i.r
a
neak
rea.i.9t this
ptlt
be
about
2.2
vclts.
{Tlrese
reajinq! f,.re.btaine. ilth
a
!eat\ vlrr
rlcdel
r-1.)
The
use
of
a
Fi:ld
slrength
r,1ete!:ill a].. b: h3l.t!l i. Clterni.l.q ihe ra.ij.ter .ui-
FUt
of th€ finat
3ta9e,
a. in the instrlctions
ab.ve
fo.
r.11
tu.inq
procee.dure,
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