INSTALLATION
OPERATION AND MAINTENANCE
171/13TABLE OF CONTENTS
SPECIFICATIONS
INTRODUCTION
CIRCUIT THEORY
SINGLE SIDEBAND TRANSMISSION
AM Generation
Sidebund Generation
Single-Sideband-Suppressed-Cartier Transmission
INSTALLATION -
Power Supply 2.
Ancenaa :
Microphone
Cable Connections
Relay Control
Carzier Synchronization.
OPERATION
Control Funetions
Pre-Operating Adjustments
‘Transmitter Operacion
‘Transmitter Toning
Single Sidehand Voice Transmission
AM Te
smssions (Single Sideband with Carrier)
CW Operation (Manyal) :
CW Operation (Semi-Break-In) tae :
CW Operation (Full Breai-ln}
Frequency Shilt Keying (FSK)
Slaw Scan Television (SSTV)
Sidetone Oscillator
OFSet CW Teansmit Frequency
Brequency Calibration
‘Tuning Higher 6: Lower Frequency Segments
ALIGNMENT AND TROUBLESHOOTING
‘Transmitter Alignment :
VFO Anmplilier Plate Circuit :
Mixer and Driver Plate Cieuit
Carnet Frequency Adjustment
Carrier Balance
PARTS LIST .
Figure 1.
Figure 5.
LIST OF ILLUSTRATIONS
Block Diagram of 600-T
Interconnection Diagram 600-R to 600-7
Rear View of 600-T
Top View ef 600-7. noe . :
Bottom View of 600-7
Pape
u
2
2
4SWAN MODEL 600-T TRANSMITTER
SPECIFICATIONS
FREQUENCY RANGE:
8 3410 44 me
1s 13.8 €0 14.8 me
ters 20.9 to 21.9 me
5 to 30.0 me
POWER INPUT
Single Sideband, Suppresse
minimum on all bonds
Cartier! 600 Watts P.EP.
CW, 500 watts DC input on all bands.
AM: (Single Sideband, with catsier): 150 watts DC input
on all bands,
RITY/SSTV: 100 watts continuous.
DISTORTION
Distortion produets down approximately 30 db.
UNWANTED SIDE.
(Unwanted sideband down mote than 50 db,
RRIER SUPPRESSION
Carts suppression greater than 60 dh.
TRANSI
Wide-range Pi-notwork for 50 to 75 ohm eoax
AMPLIFIED ALC
Limits modulation level
AUI
DIO SIDETONE:
For CW monitoring
OW KEYING:
Grid block
Full Breakin, or Sem-Break-in with VX-2PLUG IN vo!
Optional aecessory. Also provides Semi-Breakcin CW.
FRONT PANEL CONTROLS:
MIC. JACK. .. SIDEBAND SELECTOR: CWNORMAL-
FP... MIC. GAIN... CAR. BAL... . GRID TUNING
«CW KEY JACK... POWER SWITCH... FUNCTION,
SWITCH: SPOT-VOXPTT-TRANS-TUNE .. . DIAL
SET ,., MAIN TUNING... P.A, LOAD’... PA,
PLATE... BAND SWITCH . .. HGH/LOW POWER.
REAR PANEL CONTROLS AND CONNECTIONS:
EXT OSC... TO.600-R... VFO CONTROL: J2.3.
GND TERMINAL . . . CW BREAKIN: SEMPFULL
FUSE 108... POWER CORD ... RELAY CONTROL
JACK... CAR, OSC. TEST... ST RECEIVER .
ANTENNA CONNECTION 50-75 OHM... AUX P.A.
LOADING: S0M-4uM ... VOX CONNECTOR
SIDE AND BOTTOM CONTROLS:
P.A. BIAS: HIGH POWER (SIDE) ~ LOW POWER
(BOTTOM) . .. CAR. FREQ. ADJUST: NORMAL
‘OPPOSITE,
VACUUM TUBE COMPLEMENT:
VI 12876 VFO Amplifier
V2. 12BE6 Mixer
V3 6GK6 Driver
V4 6KD6 Power Amplifier
V5 6KD6 Power Amphfier
V6 12BA6 LE. Amplifier
V7 6JHS_—_Balanced Modulator
V8 12AX7 Mic. Amplifier/Trans. Audio.
Vo 6FGS Tuning Eye
DIODE AND TRANSISTOR COMPLEMENT:
DAO INSG05 ALC Diode
402 ENG005— ALC Diode
D901 INMA Tuning Eye Diode
i200 The
11208 1N4005 Power Supply Diodes
DI2091N400S Bias Supply Diode
DI210 1N800S Relay Supply
DI2H1 IN§005 CW Switching
Dj212 ZENER Voltage Regulator
Qi 2N706 VFO
Q2 -2N705 Buiter
Qs -2NS322_— Ree. Mote
G4 .2N706 Carrier Osciflator
ACCESSORIES:
‘The following accessories are available for use with the
Swan 600-T Transr
(a) Model $08 External VFO
(b) Morel 510X Crystal OSC
(©) Model VX-2 VOX
(4) Mack Tl Linear Amplifier
POWER REQUIREMENTS:
117 volts, 50.60 cycle. Current consumption: 2.2 amps
in standby (PTT), 6.2 amps in TUNE, and 3.5 amps
average with voice modulatio
DIMENSIONS:
15 inches wide x 6H inches high x 12 inches deep.
Weight 32 pounds.
TL
‘The Swan Model 600-T Transmitter is designed to be used
in OW, AM, SSB, FSK, and SSTV modes aver all portions
(of the 80, 40, 20, 15, and 10 meter amateur radio bands
Expanded frequency coverage is possible with the use of
the optional accessory SIOX Crystal Controlled Oscillators
Model S08 External VFO Oscillator, ot Model 330 General
Coverage Tuner. Basic circuitry of the singe conversion
design lias been proven in many thousands of the popular
Swan Transceivers. Mechanical, electrical, and thecal sta-
bility is exceptionally high. All oscillators are temperature
INTRODUCTION
compensated and voltage reguleted. Operation may be fixed,
‘oF portable, Carrier suppression is typically greater thon.
60 db, and wawanted sideband suppression is down more
than 0 db, Power input on all bands exceeds 600 watts,
P.EP., on single sideband; 500 watis DC on CW; 150 warts
DC on AM;and (00 watts continuous on RTTY /SSTV, The
{600-T includes automatic level control (ALC), grid black
keying, CW sidetone monitor, and peovisions for Fell and
Semi-Break-in CW keying.Refer to Figure 1, and the schematic diagtam for the follow:
ing discussion
‘When the push-to-talk switch on the microphone is pressed,
the transmitter js activated, und yenerates a single sideband,
suppressed carrier signal jn the Following manner.
Audie from the microphone is coupled through C802 te
the grid of the Mic. Amplifier VAB. The audio is amplified
and coupled through C810, and the MIC. GAIN conteol
RSDG, to the grid of the transmit A.F. Amplifier V8A. ‘The
audi is again amplified, and coupled through C704 ta the
dellection plate of the Balanced Modulator.
Carrier is generated at approximately $500 KC in the tea
sistorized cartier osillator cituit Q3. The RF output of
the cartier oscillator is injected iato the eontrol grid of the
Balanced Moduiator theough C1006. This Balaciced Mode
lator is a beam deflection tube, and operates similar to a
cathode ray tube, in that the electron beam from the cathe
ade is deflected to one output plate or the ether by the
charge appearing on the delleetion plate. The carrier RF
signsi fed to the control grid of the Balanced Modulator
appears on both plates of the output, The two plates are
connected to T7O1 in push-pull, s0 that the carrer signal
‘cancels itself out in T7O1. The deflection plate DC voltages,
ate adjusted by the Carries Balance control R712, so that
the RE being fed to the output plates will cancel out, and
the output from T701 will be zero. Audio signals froma the
transmit AP. Ampiitier V8A, ate apptied as 1 modulating
voltage to one deflection plate, and the two sidebands r2-
sulting from the sum and difference frequencies of the audio
and cartier frequency heterodyning appear in the output of
T7O1, Carrier suppression is approximately 60 db.
‘The double sideband, suppressed cartier signal is then cou-
pled from the secundary winding of T701 Uhnough C702, co
the Crystal Latses Filter. The Crystal Latice Filer sup
presses the Lower Sideband, and permits only the Upper
Sideband to be fed to the grid of the LF, Amplifier V6.
With the Opposite Sideband crystal, the easier frequeney
is generated at approximately 5803.3 KC, and this pesitions
the double sideband sigral on the other side of the filter
response curve, atteoueting the Uppes Sideband by atleast
50 ab. The output of the IF, Amplifier is coupled theough
T6OI to the contro grid of the Mixer V2.
QI, the transistorized VFO Oscillator, uperate inthe com
ron base configuration as a eolptts osilator. Q2, the
Buiter Amplifier, is used for isolation. The extremely goes!
regulation achieved through using the Zener diode regulator
DI212 across the bias supply voltage, also contributes 10
the stability. Bandowitching is accomplished dy changing
the tank circuit ceil, The VEO exhibits extremely goend
CIRCUIT THEORY|
stability after the initial warm-up period, Drift from 2 cold
start will be less than 1 ke for the frst hour on $0, 40, and
20 meters, and Tess than 2 ke on 15 and 1@ meters. After
wamnrup, drift will be negligible. ‘The output of the VEO.
Oscillator is coupled through C1117 to the grid of the VEO.
Amplifier VJ. ate tuning is accomplished by LIOL
through L103 anu! their associated components. The signal
is amplified and coupled through C144 to the injection grid
oof the Mixer V2.
In the Mixer, the VFO injection frequency is subuactively
hheterodyned ‘with the LF. signal on 80 and 40 meters, a
the resaltant output is the Lower Sideband RF. opecating
frequency. On 20, 15, and 10 meters, the VEO injection
frejpreney is additively heteradyned with the LP. signal,
wl the resultant output is the Upper Sideband R.F. oper
ating frequeney. Ptaie cuning i avcomplished by L201
through L205 and their assexiated components, The output
‘of the Mixer i coupled through C204 ta the grid of the
Driver V3, where the signal is amplified and coupled throxigh,
C303 to the grids of the Power Amplifiers V4 and V5, Grid
Utive for the Driver and Power Ampifiers i provided by
the mechanically ganged Grid Tuning eupaciters €209/C307,
The Driver plate circu! is tuned by L302 theough L306 and
the associated components.
‘The Power Amplifiers are connected in parallel, and their
‘output is coupled through the two parasitic suppressors,
ZA01 /2A02; through the two parallel capacizors C411 /0412:
to the wide range Pi-network. The Prnetwork consist of
11404: the two section P.A, Tune capacitors C413 A/C813B,
and C414; the two section P.A. Load capacitors CH 7A/
C417B, and C418, L405; and the Auxiliary Loading capaci.
tors C415, C416. “The output of the Pi-network is vermin:
ated af the coaxial antenna connector J7. Neutralization of
the Power Amplifiers is accomplished by adjusting C41D.
4, the HIGH/LOW povwee switch, contols the screen vo
ane being applied to the Power Amplifiectabes. In the HIGH
position, the screen voltage is rowed around the divider
resistors R410/R41, allowing the +215 velts to be applied
to the scrcen gids of the power amplifier thzough the screen
resistors R417/RA16. In the LOW position, the #215 volts
is divided down approximately 304 by R410/R811
nv addition (o controlhiug the sereen voltage of the Power
Amplifier tubes, S4 also controls the P.A. BIAS being apy
plied to the grids of the Power Amplifier Tubes, Whon the
HIGH/LOW POWER switch is in the HIGH position, the
HIGH POWER P.A. BIAS potentiometer RA0H controls the
bias applied fo the grids of the P.A. The LOW POWER P.A.
BIAS potentionieter R408 is switched in series with the
HIGH POWER P.A. BIAS potentiometer when the HIGH)
LOW power switch is placed in the LOW POWER position.4009 40 WvHOVia NOOTE ‘tL aNDIS
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WY O4AThe amplified automatic level comtrol (ALC) circuit con
sists of S01, D402, C401, C402, R401, and R6OS. The
hegative valtage developed by this citeuit is fed back to the
tid of the LF. Amplifier Vo.
CW Keying is accomplished by grounding the blocking bias
applied to the grids of the Mixer, Driver, and Balanced Mod.
ator stages, When the CW key is closed, bias is also ce
moved fom the grid of de Mic. Amplifier V#R, causing
the Mic, Amplifier to oseillate at approximately 800 cyctes.
‘This 800 eycle sidetone is conplod trough CRUD: through
Ue MIC GAIN contco! R806; to Ihe grid of the ALP. Ampli-
Fier V&A. ‘The output of the A.F. Amplifier is fed through
pin 11 of the “TO 6O0R” socket on the rear ef he trans:
mitter to the receiver for CW monitoring,
Receiver muting is aceomplished by ungrounding the -35,
velt bias fine to VL, V2, and V3 in the 600-R recelver.
When the CW BREAK-IN switch is i the FULL position,
the transisterized REC. MUTE stage, 03, ungrounds the
Ibias line. When the CW BREAK-IN switch is im the SEML
position, a contact on relay K1, ungrounds the bits hne.
Power for the transmitter is supplied by the builtin power
supply. Pullewave rectification is provided by the bridge
‘eifeuit comprised of D1201 thu P1208, which supplies
the positive 800, 275, and 215 volt plate and screen volt-
aces, The filter network is comprised of C1204, C1205,
and C#207, which are computer grade capacitors, and
1201, R102, R¥203, and RI204._ ‘The negative 110 volt
is developed across D1209 from 2 separate winding of
T1204. The negative 12 volt transistor voltage is developed
across R1206, R1207, and is regulated by the Zener diode
DI212. The 126. AC filament voltage is sopplied by a sep-
rate winding of TI201, and in addition, the positive 12,
volt DC celay control woltage is developed by D1220 from
‘his samme winding,
SINGLE SIDEBAND TRANSMISSION
‘To pemmit a logical discussion of the techniques and circuits
required to goncrate a single-sideband-suppressed carrier sig-
nal in the Swan Model 600-T Transmitter, itis important to
‘understand the generation of an AM (Double Sidenand with,
Carrer) RF. signal
AM GENERATION.
A.onventional AM ansmitter normally consists of a Master
Oscillator, Butfer Amplifier, Doubler Amplifier, Tripler
Amplitier, and a Final Amplifier. A low frequency RP.
figrier is generated in the Master Oscillator stage, and is
doubled or tripled as required to arrive a the desined oper
xy. In order to voice modulate this RLF. eae
tier, ¥ Specch Modulator was required. Since high Tevet
teculation: was normally desited, plate modulation uf He
Al Aniplifiee was required. In order to modulate the
the Speesh Modutstor hed t0 be capable
of delivering sineowave audio power equal to 50% of the
de. plate power input to the Final Amplifier. In other
wonds, if tie dc. plate poster input to the Final Amplifier
stage is 100 watts, the sinc-wave audio power output af the
Specch Modulator must be 30 atts. When the sineowave
audio is mixed with the R.F. carrie frequency, sidebands
are generatce which are the sura of, and the difference be~
tween, dhe fve heterodyned signals, A fully modulated AM
signal has about two-thirds of ils power ithe cartier, and
‘only about one-third in the sidebands. Since the sidebands
carry all of the audio intelligence, and the intelliove eon-
{ain in one sideband is duplicated in the other sideband, AM
is an inefficient means of teansmission, These are other
atendant drawbacks also, The bandwidth of the AM tras
mission is approximately 6 ke, while the actual deimodulated
audio is only approximately 3 ke
SIDEBAND GENERATION:
When a modulated audio frequency, such as one produced
bby a human voice, is heterodyned with an RLP. eater free
‘quency, sideband frequencies are generated which are the
sin of, and the difference between, the «wo he‘eodyned
Frequencies. To many. those sideband frequencies are
erught of as Ivins only a single frequency with a very
small bandwidth, In fact, however, these sidebands are
separated frum the RE, carrier frequency by the suin and
dilference of the audio frequeney. For example, @ typical
inteligible voice signal contains audio frequencies in the
frequency range of 300 10 3000 cycles, IF this modulating
audio Frequency is heterodyned with an RE. cartier fee.
quency of §,500,000 eyeles, the resultant sum frequencies
cover the frequency range of 5.500.300 eyeles ce 5,503,000
ceyeles, and these are called the upper sideband. Likewise,
the difference frequencies cover the frequency range oF
5,499,700 cycles 10 $,497,000 cycles, and are called theower sideband. From the above information, itis apparent
that each of the sidebands occupy a bandwidth ef approx
mately 2,700 cycles. Since the sideband frequencies carry
all the audio intelligence that is impressed on the RF. car
rier frequency, and the intelligence contained in one of the
sidebands 6 exactly duplicated in the other, only one side-
band need be transmitted. The other sideband and carrier
‘ean be suppressed, It should be semembered that in the
single-sideband suppressed-earrier mode of trans
unwanted sideband and carsier are greatly suppressed, but
‘not entirely climinated. Thus, with a transmitted sigeal
from a transmitter with $0 db sideband suppression, the
other, of unwanted sideband, will be present, and will be
smitted, ut iis Jevel will be SO db below the wanted
sidlebond, When this signal is received at a level of 20 dh,
ver $9, the unwanted sidehand will be present at a fevel of
approximately $5, The same is tive of carrier suppression.
‘With cartier suppression of 60 db, and a signal level of 20 db
cover S9, carrier will be present at a level of approximately
SB to.
SINGLE-SIDEBAND-SUPPRESSED-CARRIER
TRANSMISSION:
It ix important to Keep in mind that the sideband that is
being transmitted is actually a bund of Frequencies approxix
mately 2,7 ke wide, Since the normal LF. of the Svan
Model 600-T Transmitter is a SS00 ke USB LF, system,
those RLF. operating frequencies which are aormatly LSB
‘must be inverted to LSB before transmission
On 80 and 40 meters, the normal USB LF. signal is sub-
actively heterodyned with the VEO injection frequency
in the Mixer stage, ond the resultant difference frequency
selected at the output of the Mixer is the LSB operating
frequency, For example, if the normal $5003 te 5503 ke
USB LF. is heteradyned with the VFO injection frequency
fof 9400 ke, the cestltane output of the Mixer will be the
3899.7 to 3897.0 ke LSB RF. operating frequency. In
other words, the normal USB LF. frequency has been ins
verted toa LSB RF. operating frequency by the subtractive
heterodyning process.
On 20, 15, and 10 meters, she normal USB LB. signal is
additively helerodyned with the VFO injection frequency
in the Mixer stage, and the resultant sum (requency selected
at the output of the Mixer is the USB operating frequency’
For example, &f the normal $500.3 10 5503 ke USD LI. is
heterodynied with the VFO injection frequency af $700 ke,
the resultant output of the Mixer will be the 14,2003 to
14,203.0 ke RLF, operating lrequency. Note that on these
bands, the inversion process does not take place.
When operation is desired on the opposite sideband, that is,
USB on 80 and 40 meters, or LSB on 20, 15, and 10 meters,
the LF. system ie changed to a LSB LT. system by switch=
ing the SIDEBAND SELECTOR switel wo the OPPOSITE
sideband 5503.3 ke crystal. This positions the double side-
‘bund signal generated in the Balanced Modulator stage to
the other side of the filter response curve. On 80 and 40,
meters, the LSB LF. signal ie cubtracovely heteradyned with
the VEO injoction frequency, and the resultant difference
frequency selected at the oiiput of the Mixer is the USB.
REF, operating frequency. Here agai, the USB LF. signal
has been inverted to the USB R.F, operating frequency. On
20, 15, and 10 meters, the LSB LF, signal is additwely.
hheteradyned with the VFO Injection frequency, snd the
resultant sum frequency selected at the output of the Mixer
is the LSB RF. operating frequency. (See Table 1 and
Table 2.)eonsee
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NOWWHANIO TWNDIS ANVEIGIS 3LIS0udo @ TEVLINSTALLATION
POWER SUPPLY:
‘The Swan Model 600-T builtin power supply provides alt
the necessary voltages roquired by the teansinitier for 317
volt, 50-60 eyele operation. The transinitrer comes cot:
plete with a pre-wired plug and cable, already for plugging,
into the AC power source.
ANTENNA:
antenns systems designed for use 6a.
tie Ingh frequeney amateur bands may be used with the
Swan 600-T Transmitter, provided the input impedance of
tite transinission line # not outside the capability oF the P-
‘output matching netstork, The transmission fine should be
‘of the coaxial cable type. An antenna system which shows
4 standing wave ratio of less than 4:1 when using 50 o¢ 75
fhm ecuxial transimission line, or @ system that results in a
Iraremiasion line input innpedance that is essentially resis:
tive, and between 25 and 200 ohms will take power from
the tyansmitter with Tite difficulty. If apen-wire or bal-
anced type tansimission bine is used with the atenna, a
suitable antenna tuner is cecommended between the trans
sitter and the feed line. Methods of construction and oper
ating such tuners are described in detail in the ARRL
‘Antenna Handbook, and simi publications, For operation
fon the 75 and 40 metes bands. a simple dipole antenna, cut
10 resonance in the most used portion of the band, will per
form satishietorly. For operation on the 10, 1S, and 20
meter bands, the efficiency of the station will be greatiy
increased if a good dicectional rotary antenna 1s used.
Remember that even the most powerful (ranamitter is use:
less withowt a proper and efficient antenna system
Any of the coune
MICROPHONE:
‘The microphone input is designed for high impedance
Inicrophiones only. The choice oF microphone is important
for good speech quality, and should be given serious con
sideration. The crystal Iattice filter in the ceansnsitter pro-
Vides all die restriction necessary on audio response, and
furtter restriction im the microphone i not requited. is
more important to have a microphone with a smouth, flat
response throughout the speech range. The microphone
plug must be a standard 1/4 in. diameter three contact type.
48) The tip connectian i for push-to-talk relay control
(b) ‘The ring connection isthe microphone terminal.
(e) The sleeve isthe common chassis ground.
‘The microphone manufacturer's instructions should be fol-
owed in connecting the microphone cable to the plug. With
many mierophenes, the push-to-talk button must be pressed.
to make the microphone operative. For VOX operation,
this feature may be disabled, if desired, by opening the
‘microphone case and permanently connecting the contacts
which control the microphone
CABLE CONNECTIONS:
Cable connections for iateronnecting the 600-T to the
matching Swan Model 600-R Receiver are shown ia Fig
tore 2. These cables are supplied with the 600-T.
RELAY CONTROL:
‘An RCA phone jack is provided on the back of the 600-T
for switching of external accessories. In particular, this
jack is used whea the Swan Mark I Linear Amplifier is
sed.
CARRIER SYNCHRONIZATION:
‘When operating the 600-T with the 6DO-R, it is important
that the carrier oscillators in each unit be exactly on the
same frequency, otherwise, the transmitting and receiving
Frequencies in the TRANSCEIVE mode will not be the
same, To synchronize the 600-T with the 600-R, refer t0
the CARRIER SYNCHRONIZATION instcuctions in the
600-8 Instruction Manual
NOTE
‘The eastier frequency triromers om the 600-7
have been factory adjusted during transmitter
audio tests. Instructions for adjusting scans
mitter cartier frequencies are contained in the
ALIGNMENT section of this manual. It is ime
portant to remember thut if the transmitter
arti frequencies are ever te-adjusted for any
reason, st will he necessary to perforin the
CARRIER SYNCHRONIZATION. procedures
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avaEOPERATION
CONTROL FUNCTIONS:
MIC_JACK
‘igh impedance euiccephone plugs in here.
IDEBAND SELECTOR SWITCH
CW — Unbalances Balanced Modulator stage, and
setts carter.
NORMAL — Selects the NORMAL 5500 ke crystal
‘This provides LSB operation on 80 and 40 meters,
tnd USB operation on 20, 15, and 10 aneters.
OPPOSITE — Selects tne OPPOSITE $503.3 ke crys:
Gl. This positivns the Double Sideband sigaal on
the other side af the Filter sponse curve for USB
‘operation on 80 and 40 meters, and LSB operation
‘on 20, 15, and 10 meiess
FUNCTION SWITCH
‘SPOT — Unbulances Balanced Modulator Stage. Acti-
vates all stages of the transmitter exeepr the Power
mplifier stage. Allows the transmitter to be
spotted” to the receiver frequency
VOX — Aligns transmitter circuits for voice conteol
‘operation using VX-2 avcessory.
PIT — Aligns transmitter circuits for push-to-talk
‘operation using a high impedance microphone,
TRANS = 12volt DC circuit through relay K] and K2
‘conmpleted. Voltage to all stages is applied.
Meter reads P.A. Cathode current
TUNE ~ All circuits for transmit are energized. Bal-
‘anced Maululator stage is unbalanced. Cartier is
fully inserted. Metee reads P.A. Cathode current
MIC. GAIN
Control: potentiometer R806 in the grid circuit of
VBA. Controls the amount of audio to the Balanced
Modulater.
CAR. BAL
Controls potentiometer R712 i
lator deflection plate citeult, an
‘he caerier,
the Balanced Modu-
permits mulling out
DIAL SET
Zerorbeats the calibration markers for aocurate dial
alignment. Extends the frequency segments for ex:
tended coverage. Controls C111 in VEO ciceuit,
MAIN TUNING
Gontiols C111 2in frequency determining VFO eiteuit
P.A. GRID
Controls mechanically ganged twning capacitors C209}
C307 in plate tank citeuit of Mixer and Driver stags.
PALPLATE
Controls C413A/C413B in Pinetwork to tune final
power amplifier plate to resonance.
PA.LOAD
Controls CAT7A/C417B in Penetwork to match im.
pedance of oviput load.
BAND swereH
Swices plate coils, ar! assciated capacitors of VFO,
VEO Amplifier, Mixer, and Driver. Alan svitches
tank cof of Praetwouk and astocated capacitor in
PIA. output rath
HIGH/LOW POWER SWITCH
‘Contras screen voltage applied to Power Amplifier
tubes, Controls P.A, Bias to Power Amplifier Tubes.
KEY JACK
ey plugs into this jack.
ON.OFF SWITCH
Turne power supply on and oft
PANEL METER
Reads P.A. Cathode current only.
TUNING EYE
indicates relative output ‘of transmitter (maximum
closing af eyo). Also used fo check modulation level
P.A. BIAS (HIGH POWER)
PA TRSIT RIG Iotied on uh side of chasis AC
justs HIGH POWER P.A. idling current.
B.A. BIAS (LOW POWER)
‘Conttols R409, located on bottom of chassis. Adjust
LOW POWER P.A idling current,
(CW BREAKIN
SEM ~ This postion is used in conjunetion with the
Model VX? VOX accessory, and. porns St
dealin CW operation
FULL ~ This positon is sed for Bull breakin CW
operation. A separate antennas requied forthe
ttanamiter and revever-or the adéitina ofan sl
tronic TR antec vel.
AUXILIARY LOADING
BOM ~ Controls Ca15 in P.A. LOAD circuit of Be
rnebwoik. Provides additional loading capacitance
for 80 meters.
YOM = Controls C416 ip. PA. LOAD cizeuit of Pr
network. Provides additional loading capacitance
for 40 meters.WARNING
Dunigerous high voleage is present on the plascs
af the power amplifier thes whenever the
‘power supply ts energized. Never turn power
Gn ster che power anplifier cover is removed.
High voltage is also present undemeath the
chassis belone the elear plastie HIGH VOL TAG!
WARNING plate.
PRE-OPERATING ADJUSTMENTS.
Perfonn the following adjustments before plu
ging the tine
ccord into the AC receptacle
6
‘Tuen POWER switch to OFF position
Set Function Switch 0 PET position,
Connect a wire from earth ground to dhe ground stud
Incuted on the rear of the chassis. NOTE: This step
is recommended, but sot essential sf the 117 volt re
cceptacle is grounded with the thied grou pin
Connect a 50 tw 75 obim auntenna te the ANTENNA
coaxial connector on the rear of the chassis, or cons
pect a dummy loud to the transniter.
bie sure that all phiys aro fully inserted into thei re-
spective sockets. As ceveived from the Factory, the
‘500-T is prepared to operate on its own, having jmaper
plugs ia the “EXT OSC” socket, in the “TO 400-R™
ket, and From J? t0 J3
Insert the niieyophione plug inta the MIC. jack on the
Front panel, andjor plug a CW key mtu the KEY jack.
Plug the 117 VAC power cor into a 117 volt, 50-60
cycle receptacle, Ifthe revepracte to be used does not
Ihave provisions For the third pin, which is a ground
ing pin, an adaptor vill be required, or the pin may
he cut off, and a separate ground wire sun to the
(600-7 chassis, Adupiors are available from electronic
for nardware stores.
CAUTION
THE 600-T MAY BE TUNED TO FREQUEN-
CIES OUTSIDE THE AMATEUR BANDS. DO
NOT OPERATE THE TRANSMITTER UN-
LESS YOU ARE WITHIN YOUR PERMITTED
BAND LIMITS.
TRANSMITTER OPERATION
SPECIAL NOTES
Read! the following paragraph carefully. Be sure
that you understand and remember these prim
ceiures before tuning the transmitier
3, The ava important detail keep in pvind when
ing your Swan 600-T Transmitter, is that the PLA.
‘B ATED_AS QUICKLY AS
POSSI The P.A. (ube ae dissipating all the
ower input when they are not in resonance, and ean
tne permanently damaged in just a few sovonds. Once.
resonance has been established, the P.A. tubes can be
‘operated al full power impat in the TUNE pesition for
a considerable length of time. although we recom=
‘mend 30 seconds as a sale: maximum, But itis most
important to sealie that the 30 second tient assumes
that the P.A, PLATE hus heea /MMEDIATELY tes-
nated. This vale applies generally to all transmitters.
2. DA, PLATE resonance ay be accomplished by
(0) tuning for the “dip in PLA. Cathode Current,
(b) toning fr maximum transmitter output as indi
cated hy the tuning eye
3. tthe 600-T, the meter indicates total P.A. Cathode
Current. The P.A. PLATE should generally be tuned
for the “
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26PARTS LIST
Ref.
Description Part Na. Symbol Description Part No.
rORS e419 | 1000, 1000¥ Feeatnew 07-001
420 | 1000, 1900V Feeder 77.001
1, 400V Mies 085.024 CHL | 5, 9 NPO Dise 4-022
01 #¥0-20% SOOV Dise 972.023, 422 | 01, 480-208 SO0V Dise 72023,
(01 #80-20% SOOV Dise 072023, 423 | “01, +40.20% S00¥ Disc 072-023
1002 20% S00V Diss 072018 501 | 01, +80.20% S00V Dise 072.023
24, 5% SOOW Mica 088.036 Cor | “08, 40.20% 500V Dise
30, 5% S00 Mica 084-011 0503 | 01, +80.207% S00 Dise
(01, #80-20% SOOV Dise 072.023 C504 | 002, 20% SOOV Dise
(002, 20% S00V Disc 072.018 CIOL} 430,10% N2200 Disc
EME, 200V Molded Mica | 085-028 C102 | 220, 10% N2200 Die
01, 480-20% SOOV Diss 072023 C103 | .01,'+80-20% 500 Dise
“002, 20% S00 Disc 072018 C704 | 01, +80-20% SO0V Dise
33, $1, NPO Dise 08-009 C708 | 01, #80-20% S00V Dise
50, 5% N33 Dise 038-053, 706 | 226, 20% SODV Dise
20, 5% NPO Dise 084-001 (107 | 01," #80-20% SOOV Dise
27, $% NPO Disc 084.066 €708 | 002, 20% SOOV Disc
136, Variable 074.087 C801 | 100, 20% NIS0O Dise
470, $7 SUOV Mica 088.032 cs02 | 01,'+80.20% S00V Dise
2, 10% Tubular 074-002 can | 5,450V Blectrolytie
1002, 20% SOOW Diss 072018 C804 | 01, #80-20% S00 ise
1002, 20% S00V Disc 72018 C805 | 100, 205% N1500 Dise
(002, 20% S00V Disc 72.018 6306 | 001, 20% SOOV Dise
50, 5% N33 Dive 084-053 807 | 001, 20% 500¥ Dise
20, 5% NPO Dise 084.001, 808 | 001, 20% S0OV Dise
6306 | 43, 5%. NPO Dise 084-096 e809 | 0047, 10% SOOV Dise
a7 | 136, Variable 074-057 810 | 02 +80-20% sooV Dise
C08 | 01, +80-20% soov Dise 072023 C901 | 002, 20% SNOW Dise
€309 | 470, 5% S0OV Mica 088.032 902 | 001, 20% S00 Dise
Cao 1, 200V Tabular 085.020 lool | 25, Variable s
c402 | 087, 20% 200¥ Molded 085.026 1002 | 25, Vanahie 75.018
403 | 500V ise 072.018 C1003} 10; 5% NPO Disc 084-060,
Cabs | 91, +80-20% SCOV Disc 072.023 C1004 | New Used
C405 | 01, +80-20% 500V Dise 072023 Coos | 10, 5% NPO Disc 084-060
C406 | 01, +80-20% S00¥ Dise 072.023 C1006 | .002, 20% SOV Dise 072018,
6407 | 01, #80-20% S0OV Dise 072.023 c1007 | 4, 108 Tubular 071-001
cis | 002, 20% 2KV Dise 972.009 i098 | 30, 1SV Electrolytic 073.087
c409 | 002, 20% 2K Dise o72.009 €1009 | “01, +80-20% 300¥ Dise 072023
410 | 20, Variable o7a.oro €1010 | 270, 2% SOO Mica oR8-014
C41 | 270, 5% 2500 Silver Mics | 088.025, CLO | 270, 2% SOOY Mica 8-014
C412. | 370, 5% 2S00V Shiver Mica | 088025 crit | 13, Variable 075-005,
413A | 180, Vaciable 074-023, C1102 | Selected Value
C413B_ | 180, Voriable 7.023 C1103 | 13, Variable 075.005
414 | 100, 6KV Die 084-062 C1104 | Selected Vatue
415 | 265'880, Mica Compression | 089-012 hos | 13, Variable 075-005
C416 { 265-880, Mica Compression | 089-012 Cros | Selected Value
caiza. | 410, Variable o74-040 HoT | 13, Variable 075.008
c417B | 410, Variable 074.040 C1108 | Selected Value
cats | 150, 5% 1S00V Saver Mica | 088-040 er109 | 13, Vaniable 975-005,
‘Capacitors are in Picofarads when listed a8 whole number wnless otherwise specified. When listed as decinnal number, value
isin microfarads unless otherwise specified, Resistors are 10% tolerance, 1/2 watt rating, unless otherwise specilB
Ref, Ref.
Symbol Description Part No. Symbol Description Part No,
e110 | Selected Value 309 | 22. Ohm sw osv-oas
CHIT | 39, Vasiable 074.056 aol) 470K 042.474
cana | 12, Vaable 074-0264, Rao2 | 1K 042-102
C143 | 470, 3% SOO Mica 088-032 Rees | 4.7K 42472
cana | 430, 2% S00W Miea 088-024 Rave | 25K Pot 052.038
C1115 | 270, 2% S0OW Mies 088.014 aos | 27K 082-273,
cine | 27, 5% s00v Mica 088.023 R405 | 27K 042273
cini7 | 430, 2% S00V Mica oRs-024 Ra07 | 150K 082-154
C18 | 01, +80-20% SOY Dise 072.023 aos | 630 Ohm 12-681
C1119 | 01, +80-20% S00V Dise 072.023, R409. | 25K Por 082.038
1205 | 05, #80-20% 100V Disc 972-036 Ra1o | 6K 30W 09-014
C1202 | 001, 20% S00V Disc: 072-007 Rall | 6K 10W ox9.0it
1203 | 05, 480.2% 100V Dise 072-036 Ral2 | 1 Ohm 2 9.019
C1204 | Tod me, 380 Bleccrolyiwe {073-086 R43 | 470000 046-471
C1205] 100mf, 380V Flectrolytic | 073-046 Raid | 1000 Ohm 46-102
€1206 | 1, 200V Molded 085-020 R15 | 1 Ohm 2W 049.019
©1207 | 100 mf, 350V Electrolytic | 073-046 RA16 | 100. 0hm 42-101
C1208 | 40 mi,350V Electrolyte — | 073-040, Ra17— | 1900hm. 082-104
cr209 | (some, SOV Btectrolytic {073-049 Roo) | 1K 042-102
C1210 | 280ml, 25V Electrolytic | 073-006 Roo2 | a7k 042.473
C1211 | 150mf, HSV Electrolytic | 073-013 R603 | 100m 042-103
©1212, | 150mf, SOV Electrolytic | 073-043 R604 | 470. Ghm 042.471
C1213 | 0047, 1000 Tubular 085.032 R605 | 10K 042 103
C4214 | 0047, 1000 Tubular 085-052 70) | 10K 12-103,
1215 | 01, 1000¥ Tubular 085.027 R702 | 10K Pot 052.042
C1216 | 01, +80-20% SOO Dise 072-023 R703 | 47K 042-473,
Rias | 27K 032.273
RESISTORS. R705 | 100K 42 108
R706 | 100K 042-104
Riot | 4.7K 042-472 R707 | 27K 042.273,
R102 | 470K oa2a74 R708. | 10K 042.103
Rios | 100K 042.104 R709 | 27K 042.273,
R104 | 100.0km 42-101 R710 | 10K 1W 043-103,
R105 | 56 Ohm 02-560 Ray | 270K 042-274,
R106 | 100K 042-404 RN2 | 5K Pot 052012
Rio? | 4.7K 042.472 Roi | 2.2 Meg 042-225
Rios | 10k 042.103 Rso2 | 47K 092.473
R109 | 4.7K 042472 Res | 150K onda sd
RHO | 10K 2W 044-103 Reog | 1K 042-102
R201 | 27K 042-273 Ros | 22K 042.223,
R202) 10k 042.103, R806 | -E Mex Pot 052013,
R203 | 100K 12.104 R807 | 330K
R204) 470K oanaT Ros | 330K
R205 | 10k 2W 044.403 kx09 | 68K
R205 | 2.7K 2-272 RSI | 150K
R207 | 10K 042103 Rett | 270K
R08 | 10K 042.103 Rsi2 | 47K
R209 | 10K 042-103 Root | 470K
R301} i0K 042.103, Ronn | 2.7K
R302 | 100K 042108 kaos [ 1K
R303, | 100K 42.108 Roo4 | 10K 042-103,
304 | 109 Ohm 042101 Rens | 100K 042-108
aos | 22K 1 043-223 Rion | 330 Ohm 042331
R306 | 10K 082.103 R902 | 2.2K 042222
a0? | 10K roo | 15K az 1s2
Rog | 10K Rroo4 | 100K 042-101Ref, Ref.
Syimbod Description Part No, Symbot Description Bart No.
Rios | 18K 042483 1202 | so Meter Driver Plate Coil | 01204
iol | 1K se 046-101 1303 | 40 Meter Driver Plate Gail | 042025
RIO2 | 1K 5% 046-301 1303 | 20Meter Driver Pate Coil | 012-094
RINGS | IK 5% 046-101 1305 | 15 Meter Driver Pate Coib | 012-096
R114 | 470 Ghim 5% 046.471 1306 | 10 Meter Driver Pate Coit | 012.092
gilos | 27K 042272 tant} s2uh RFC 027.033
Rilo | 2.7K 082272 Tao? | 82 uh RFC 02717
Rit07 | 4700nm 5% 046-471 403 | SSunRFC 02-008
i201 | 150K 2 Ou 4 Laos} Binal Tank Coit 21-033
Ri202 | 150K 2W 14154 140s | 30uh REC 027.012
1203 | 100 Ohm 26 044-101 Lior | 200 uk REC 027-002
R120 | 500 Ohm 10W 49-005 LiOt | 80 Meter VEOOSC Coit o2rast
Ri20s | 10K 042-103 L110} 40 Meter VFO OSC Coil 021-030
1206} 500 Onm Low 49-005 11103. | 20 Meter VFO OSC Coil 034-031
1207 | 800 Ohm 10W 049-008 Litos | 15 Meter VFO OSC Coil 021-030
i208 | 4.7 Om 12478 Li10s | 1a Meter VFO OSC Coil 021-030
Rizo | 1K os2102 11106 | 2000 REC 027.002
Rizo | 2.7K 012-272 ty107 | 200 0h REC 027.002
L120 | 82uh RFC 027.023
‘TRANSFORMERS L202 | 82h RF 027.033
1203 | 200un REC 427.002
‘Tons | LE, Transformer o1s012
Ti01 | Balanced Modulator LAMPS
Transformer 14018
11201 | Power Supply Transformer | 271-021 BI GE IBIS 471-008
Bz GE Ia15 471.005
SWITCHES BB GE 1815 471.005
s} Bend Switch Detent 171433 DIODES
StA/B | VFO Water 171-108
Sic) | VFO Amp Water 171-095 aor | insoas ALC 478.023,
SID | Mixed Wafer 171-080 pioz | inves aLe 475.023
SIE | Driver Wafer 171-980 pool} 1N34A Tuning Eye 475.008
SIF | PLA. Watee yen pi201 | INad0s Power Supply 475023
82 CW Breakein 172.006 1202 | 1N4005 Powe: Supply. 473023
3 ONOFF v2012 1203 | 1N4005 Power Supply 475033
st HIGH/LOW Power (72014 i204 | 1N&DOS Power Sopply 475023
85 Sidebund Selector V7-105 1205 | 1Na00s Power Supply 415028
86 Function Switeh v7i103 1206 | 1Na00s Power Sopniy 475.023
1207 | IN400S Power Supply 475023
CRYSTALS i208} 1NGO0S Power Supply 475.023
DI209 | 1N4005 Biss Supply 475.033,
yio01 | 5503.3 ke Opposite Carrier} 486-039 pi2io | tNsoos +12 Volt Supply | 475-023
i002 | 5500 ke Nownal Corner 486-038 DI211 ] 1N4005 CW Switching 475023
i212 | Zener 475.020
cons
‘TRANSISTORS.
Liot | 15 Meter VFO Ampiifies Coil | 012044
1102 | 10 Meter VFO Amplifier Coil | 012-025 QI 2NT06 VFO Os. 476.001
L103} 40 Meter VEO Amplifier Coil | 012026 a2 2N706 Buffer Arph 476001
L201 | BO Meter Mixer late Col | 012-044 @ 2N5322 Receiver Mute 476.010
£202 | 40-Meter Mixer Pate Cot | 012.025 oO 2N706 Catrer Oscillator — | 476-001
1203 | 20 Meter Mixer Pate Coil | 012.094
Laps | 15 Meter Mixer Plate Coit | 023-027 PARASITIC SUPPRESSORS
1205 | 10 Meler Mixer Mate Col | 012-091 2401 [V4 Suppressor 101-022
Wo | s2uh REC 027.023 2402 | VS Suppressor 101-022Ref.
Symbol Description Part No.
RELAYS
KL T/R Relay 1-001
K? Antenna Relay 111-020
‘runes
vl 12826 VFO Amplifier 472.025
v2 1 2BE6 Mixer 472.003
va ®8GK6 Driver 472021
va 6KD6 Power Amplifier 472.051
vs GKD6 Power Amplifier 472051
ve 12BA6 LF. Amplifier 472.004
vr 65418 Bolanved Modulator | 472-023
vs 12AX7 MIC. Amplifier,
‘AB. Amplifier 472.009
v9 6FGS Toning Eye 472.039
METER
ML 0-800 M.A, 112.04
30