Heathkit HW 30 Manual

Page 1

Page!

1
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SPECIFICATIONS

TRANSMITTER SECTION
Power Input To Final RF Amplifier; . .

PrequencyConu-olz...................

WWO:.....

W
meolvtrlypc: ....... ...............
Mummy: ....... ..................

wetkflsluh.......--..........

Audia Power Mum. . .

POWERSUPPLY

Pawn-3mm": .......... ...........

PowerRnwlremntlhun.............

ACCWS

Microphone;,......................

ConnectmgCablu:....................

Approadmnely 5 its.

8 me lo 8.22 me man: oxyun.
Pln spacing .500".

Pm diameter .093.

-2 or "-243 crystal holder.

All nine moduhllm, automatically limited) not
more thin 1

6001429.

Merregenerndva MSW? precadadby RF pre-
ampmler flue.

Um mm mm al low as 1 mkmwollnl the
Antenna Manuals.

8-1/2" round.
Manhunter 1 nu (undistorted).
143.0 me In 119.0 m.

Tun silicon diodn In full-wave volt-n doublu-
chum.

Wm: bun-m mly:
105-125 volt: 50/80 cycle AC 45 nth.

With mml amply:
I volt opnnllm - 8 volt. at 2.85 amp, 200
mm DC a! on ma.
l3 volt apex-film - 12 Malian, 260
voll- DC at 90 ml.

Ceramic element type, plastic .mtlblfor
timer mad or doll: ovum.

Two supplied, on. (at 105-185 voltmopormm
and one {or 0 or 12 volt warmlnc pom flupo
ply use. Pmr circuit- Ile mummy
switched (or lam-ml or external pawn- supply
uu when cable is planed in.

Page 2

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GENERAL
hbeCoanenwntz....................

emanammz...................

NatWolgM:................ ...... ...

Pagea

l - 83M: Oscillator/hale: (Penman Sam)
Trlplex- (Tl-lode Samoa)
1 - can: owler (Tr-lode Section)

Final a? mum- (PanMe Section)
1 - sass: Recelvn Preamplmnmbetocm.
1 - 12m: Spooni- Amplmer and first Audio

Amplifier.
1 - GAG/5: Audio 0mm: and mm
a" my: (including handle).
8" any (including mobs).
9-3/4" wide (new license holder).

6-1/2 lbs.
10 lhl.

Minor rumba: h'vm mete specmcmmna may
be mmmmflt-nwmbledemmnm.8uch
factor. as exact 1nd placement, comm!
Ira-slum and nan-mt! variation. in tube char.
mm nm 595an norm 0! Millions.
m VII-lab! Will animal-Hymn no alsnflklnt

meet on mrul pox-romance.

INTRODUCYION

The HEATHKIT mm-anrrmcemr in
a comblnatim "mannin- Ind receiver for un
in the 24mm" ammur ndhtelephm IIMCO.

3mm mootbulldnu and mm «mm; over I
period 0! neural month: MW provided can-
elunlve evidence an: the BW-w mint
will proud: hidlly reliable service In m in.
bended applicant}. :1 assembled. wired and
adjusted In tcwrdnnce with the instructions
«mum In thi- nunuu. nu. thereto", re-
commanded that you {allow the instructions
WW me! make lull use 01 th- Clrcult
Duel-MIMI, Block Warns, sauna: ms»-
gram, mum Max-mutton, Inc" in the

interest 01 acquiring a good man-standing o!
the tunnel": and It: upwind.

The -30 hmcalver has a nomad
power many (or mention from a ll? volt
50/00 owls ac pawn um, or en be operated
Iron: either a a vanes-512%]: bonny by In:
an external pawn amply having I rating of
260 will 3+ :1 90 ms.

Tm -30 can be used with a wide variety)!
mamas types; in antenna anonm be selected
tor the Lnnlcaver on the bub at the appli-
cation Involved. see Page 37 im- a amnion
01 mm Menu: typel.

Page 3

CIRCUIT DESCRIPTION

acumen 2 uc '2 a

film E! vs:

VRMER m

WISH

"i 5 mm. er '

AWLIFIEI v1!

Yum".
It! Iv:

L._____I

5
ii
TO been new
iuulo Wig!
zeta no m n n v:
AM'LI'IE VII 7 Am WW . It. VII
V! Y
I 10 mix =
mm!
c
10 TO
YIAIS- mum um

um!!!

«Av! Been sluPLlrIID In (is: [N VOL-
LOGIIG in: cucuiv. ALL "nun All

M0 "MI

*WMS GI [HE INC I. DURAN L

Km: no 0mm: iiwuiuewlv.
main in mm mm.

DWI mu

_J

TRANSMITTER SE

The ham Ilium iron which the (in! trans-
mitter autwt is attuned (8 me) is generated
at 1/18 01 the iinll output frequncy in tube
lection VBA. 111i. circuit In crystal controlled
providing excellent inquency Minty and in
known as an "electron coupled" Pierce olcil-
lltar. Three timu" tremency multiplication
IB obtained in the pine circuit by tam the
mum. to 24 me. This signal in coupled lathe
renewing liege thrown CG.

Tube ucflon V53 multiplies the 24 me IIKIIII
gain by time. providing I 12 me Iiyui which
is coupled hometown-5mm.
Stage V in a trewancydcublar menial-wines
an output at in nu: todrive the iinalmpluior
grid.

V43 is the ilnal amplifier and operates "Iii-sight
WW i.e.. the input and output circuits are
tamed to the same frequency. RF ouw is
coupled to the antenna, through Cl'i Inc the
transmit-receive switch contact. from a tap

approximmly 1/3 turn iron the "cold" am
the "MI tank call u. The actualhppoini in m
criticil and cube mingled for optimum couplin
ii deemed neeeenxy. Since most antenna iee
lines will be in the vicinity oi 50-15 ohml, in
mauled up point will pmide near optimum
coupling for molt typical situatinnl.

Al the rear antenna Lei-mini], there is pro
video a rather unique power output detectc
circuit comm oi diode Di, resistor R
Ind cap-citat- C13 and $19. This ayltem, In:
in conjunction viii: an external vommnu, eu;
plies a convenient means at timing the tim
tank circuit 1w maximum power into the amen
in: transmission line. A. the your mm!
by this device in negligible, the meter myi
let! in the cireuii at all times toindlente prop:
operation oi the transmitter. The meter in
ion- ihis pin-pale ie I three circuit mmu
phone inc): and the rennin; is made with ti
plug inserted nppu-ozdmaiely nanny into ti
lack, such that the tip at the meter plugca:
(acts only the first termini] in Ibo jwk.

Page 9

Page 41

TROUBLESHOOTING CHART

l. Receiver section dead.

Faulty tuba: - check V1, V2 and V3 voltages.

Wiring error - recheck wiring.

Faulty spam or speaker groom - check speaker voice
coil.

2. Receiver eection weak.

Faulty tube - check V1. V2 and V3 volume.
Regeneration control not rufliciently Advanced.
R? or detector coils misaligned.

hulty Antenna or connecting cable.

S. Transmitter Ippaar- dead,

Puulty hibee - check V4 and V5 voltages.

Wiring error - recheck wiring.

Transmitter section coin mimned - recheck tuning.
Dummy load shorted or open - recheck.

Antenna mismatch - recheck Intemn inshllntion.

4. Yower low! to null Im-
plflier too high (over 6
watts), or too lo! (leu
than 1 nice).

hulty tube - check V4 and V5 volugee.

Wiring error - recheck wiring.

Transmitter section mlnhligned - recheck tuning pro-
cedure.

Faulty meter: - recheck mater readings.

High or low activity cry-till - substitute another crystal
for comparison check.

30 voltage too high or low - checkpower supply volt-gel.
Cheek ior ieury capacitors, open or shorted reelstoro,
u the power Iupplyi Check transformer voitageo. '

5"

Strong oignu from
transmitter but on medium

or.»

p.

Faulty microphone or connection! - recheck

Faulty tubes - check Vi and V2 voltngee.

Wiring error - recheck V2 and V2 wiring.

aborted RICG to ground at mike connector - center in
connector opening.

6. Weak lranemltteri URL

.0.

Faulty antenna - check.
shorted or open connecting cable - check.
Poor antenna location.

1. Low power supply voltages.

. Low line voltage - cheek.

Leaky liner capacitors - cheek.
Error in dropping resistor valuoc or wirinx - cheek.

. Faulty transformer - check voltages.

8. Modulation Ilium.

. Power supply filter capacitor gram: connection un-

grounded - colder.

Faulty tubel - check V1 and V2.

Open grid circuit connection - check wirinxuudeowering
at V1 end V2.

0. Cathode current oi lion! am-
plifier higher than normal.

Check the tuning or all transmitter coils for proper
resonance and Illgnnlent.