Heathkit HD-10 Bedienungsanleitung
and
Operation
of
the
ELECTRONIC
KEYER
MODEL
HD-10
HEATH COMPANY
BENTON
HARBOR,
MICHIGAN
TABLE
OF CONTENTS
Introduction.
......................
Parts List.
........................
Step-By-Step Assembly
I
...........
Circuit Board Assembly.
........
Parts Mounting-Cabinet Top.
..............
Wiring-Cabinet Top.
...........
Transistor Installation.
Key-Mechanical Assembly.
.......
,115
Switch Adjustment.
.............
Final Wiring.
.................
Right-Hand Operation.
.............
Left-Hand Operation.
.............
Initial Test And Adjustment.
..........
..................
Final Assembly.
Installation And Operation.
...........
In Case
Of
Difficulty.
...............
..............
Troubleshooting Chart.
Specifications.
....................
................
Circuit Description.
35
Circuit Board X-Ray Views..
.........
41
....
...
Schematic. (fold-out from
s age).
43
Page 2
cm-a
INTRODUCTION
The HeathkitModelHD-10 ElectronicKeyer uses
solid-state (transistor) circuitry to provide
clean, "bounce-free" keying. It will produce
self-completing dots and dashes at speeds ad-
justable from
15
to over 60 words per minute.
(Alternate connections provide a speed range of
10 to 20 words per minute.)
Transmitters that use grid-block keying, or
other types of keying where a negative (bias)
voltage
is
shorted to ground to key the trans-
mitter, can be used with the Electronic Keyer.
A built-in audio generator and speaker allows
you to monitor the keying of the transmitter.
Also a speaker-muting headphone jack ispro-
vided in case you prefer to use headphones for
monitoring. When using headphones you can
also listen to the received signal without exter-
nal switching. Screw terminals areprovided on
the rear of the Electronic Keyer for connecting
to the headphone output of the receiver.
Keying is accomplished with a keying lever and
two small snap-action switches, onefordotsand
the other for dashes. For dots, the keying lever
is moved to the right; for dashes, the keying
lever
is
moved to the left. This keyingsequence
can be reversed by simply reversing the con-
nections to the snap-action switches.
The Hold position of the slideswitchcanbe used
to continuously key the transmitter fortuning or
other adjustments. Also, you can connect a
straight or speed key to the Electronic Keyer
for conventional nonautomatic keying.
b
Normally, the Electronic Keyer
is
operated
from a standard 105 to 125volt AC line. How-
4
ever, there are provisions for battery opera-
tion for emergency service. Operation from a
230 volt 50 or 60 cps AC line
is
alsopossible
by adding a suitable capacitor (not supplied)
in
series with one side of the AC line. Informa-
tion on battery and 230 volt operation is in-
cluded in the Installation section of the Manual.
The Electronic Keyer will prove tobe a valuable
and most versatile addition to your other ama-
teur radio equipment. When youbecomefamiliar
with its use, you will undoubtedly improve the
clarity of your
CW
transmissions and the con-
venience of operating.
complete informationonunpacking, tools, wiring,
soldering, and step-by-step assembly proce-
dures.
Page 3
LW**-@~
PARTS
LIST
The numbers in parentheses correspond to the numbers in
the parts pictorial (fold-out from Page 5).
PART PARTS DESCRIPTION PART PARTS
No. PerKit
--
No. PerKit
--
RESISTORS
(1/2
Watt)
Nuts
(1)l-49 1 22
52
(red-red-black) (161252-51
1-42 3 270
52
(red-violet-brown) (17)252-1
1-46 6 3900
a
(orange-white-red) (18)252-3
1-16
1
4700
52
(yellow-violet-red) (19)252-23
1-20 8 10 KO (brown-black-orange) (20)252-7
1-21 4 15
K52
(brown-green-orange) (21)252-32
1-22 7 22
K52
(red-red-orange)
1-23 2 27
K52
(red-violet-orange)
1-24 4 33
K52
(orange-orange-or- Washers
awe) (22)253-10
1-25 5 47
K52
(yellow-violet-orange) (23)253-19
1-60 5 68
K52
(blue-gray-orange) (24)254-7
1-31
1
330
KO
(orange-orange-yel- (25)254-1
low) (26)254-5
CAPACITORS
(2)21-13 4 500 ppf disc
21-82 4 .02 pfd disc
21-48 4 .05 yfd disc
(3)25-131 3 250 pfd electrolytic
(4)27-20
1
.4 pfd resin
(5)27-2 2
1
pfd tubular
CONTROLS-SWITCHES
(6110-100
1
1000
D
control
12-59
1
100
KO
dual control
(7)60-10
1
DPTT slide switch
(8)64-23 2 SPDT snap switch
HARDWARE
Screws
(9)250-175 4 2-56
x
3/8"
(10)250-2 8 3-48
x
5/16"
(11)250-56 8 6-32
x
1/4"
(12)250-89 7 6-32
x
3/8"
(13)250-127 1 6-32
x
1/2" self-tapping
(14)250-26 10 6-32
x
5/8"
(15)250-126
1
10-32
x
1/2"
DESCRIPTION
6-32 thumb
Control
Push-on
Control flat
3/4"
OD
flat
#3 lock
#6 lock
Control lock
Other
Hardware
(27)259-1 2 #6 solder lug
(28)255-60 4 5/16" OD spacer
(29)255-44
1
3/4" OD shoulder spacer
(30)259-11 2 #6 spade lug
WIRE-CABLE-SLEEVING
89-1
1
Line cord
343-6
1
Shielded cable
347-7
1
4-wire cable
347-1
1
8-wire cable
346-1
1
Sleeving
D
100
ES- TRA NSISTORS- LA MP-FUSE
(31156-26 5 IN191 crystal diode
(brown-white-brown)
(32)57-29
2
Silicon diode
417-43
1
2N398A transistor
417-28 7 2N407 transistor
417-67 3 2N2712 transistor
(33)412-13
1
Neon lamp
421-12
1
1/8 ampere fuse
Page 4
&%3+*3
PART PARTS DESCRIPTION
No. PerKit
--.
SOCKETS-JACK-PLUG-KNOBS
(34)434-70 8 3-pin transistor socket
434-101 3 4-pin transistor socket
(35)436-4
1
Phone jack
438-3
1
Phone plug
(36)462-105
1
Key knob
462-187
1
Knob for 1/4" shaft
462-209
1
Knob with hole
METAL PARTS
90-M291F
1
Cabinet bottom
100-M511
P73,74
1
Cabinet top
(37)
100-M512 3 Switch bracket
205-M455
1
Ballast plate
PART PARTS DESCRIPTION
No. PerKit
--
MISCELLANEOUS
51-118
1
Audio transformer
(38)54-156
1
Power transformer
(39)75-17 4 Plastic insulator
(40)73-1
1
3/8" rubber grommet
(41)205-456
1
Key lever
209-17
1
Speaker grille
261-20 4 Rubber feet
401-84
1
Speaker
431-66
1
8-screw terminal board
85-94P32OP321
1
Circuit board
(42)211
-M26 2 Plastic paddle handle
(43)258-M64 2 Leaf spring
(44)258-M65
1
Flat spring
490-5
1
Nut starter (See the Kit
Builders Guide)
331-6 Solder
595-703
1
Manual
STEP-BY-STEP ASSEMBLY
Before starting the assembly of this kit, read CIRCUIT
BOARD
ASSEMBLY
the Kit Builders Guide for completeinformation
Soldering
to
the
circuit
board
will
be
easier
if
On
wiring,
and
Ste~-B~-Ste~
solder and clip
off
the excess leads after
Assembly procedures. every
six
or eight components are installed,
Perform the steps on Pictorials
1
through
3.
Page
5
START
for
15
to60
words-per-minute speed.
Use
68
KC? (blue-gray-orange)
for
CONTINUE
A
~4
3900
$1
(orange-white-red).
1
PICTORIAL
1
FINISH
PROCEED
TO
PICTORIAL
2.
PARTS
PICTORIAL
PICTORIAL
2
6-32
X
3/8"
SCREW
PROCEED
TO PICTORIAL
3.
Lra)-8
Page
7
START
t
CONTINUE
1
NOTE: When install~nr
plrrtrolvtir
1
NOTE:
Solder
the
connections
of
capacitars, positlonthe
lead
from
the
each large component as
it
is in- positive
(+)
end
of the capacitor at
stalled.
PICTORIAL
3
>
!
ueck
to
seethat
all
connectlons
are soldered, and cut
off
ex-
cess leads
FINISH
Set
the
clrcu~tboard as~deand pro-
ceed to
Ule
steps on Page
8.
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