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I MODEL 4OO TRANSCEIVER
S P E C I F I C A T I O N S
FREOUENCY RANGES
F o l l f r e q u e n c y c o v e r a g e o f 8 0 , 4 0 , 2 0 ,
I 5 , a n d l 0 m e t e r a m a t e u r r a d i o b a n d s
in 8 ranges oJ 500 kc each, as Iollows:
3 , 5 - 4 . 0 , 7 . 0 - 7 . 5 , t 3 . 8 5 - 1 4 . 3 5 , 2 1 . 0 -
2 r , 5 , 2 8 . 0 - 2 8 . 5 , 2 8 . 5 - 2 9 . 0 , 2 9 . 0 -
2 9 . 5 , 2 9 . 2 - ? 9 . 1 r n c .
Model 4068 Frequercy Contlol Unit
Full phone band coverage of 80, 40,
2 0 , a n d l 5 m e t e r s , p l u s a 5 0 0 k c
s e g m e n t o f l 0 l n e t e r s , a s f o l l o w s :
3 . 8 - 4 . 0 , 7 . r - 7 . 3 , 1 4 . r 5 - r 4 . 3 5 ,
2 1 . 2 5 - 2 1 . 4 5 , 2 8 . 5 - 2 9 , 0 r n c .
POWER INPUT
b a n d s .
c w
-320
Watts DC input on all bands,
AM (Sinsle Sideband With Carrier)
I Z 5 W a t t s D C i n p u t o n a l l b a n d s .
DISTORTION
D i s t o r t i o n p r o d u c t s d o w n a t l e a s t 3 0 d b .
UNWANTED
SIDEBAND
SUPPRESSION
U n w a n t e d s i d e b a D d d o w n a t l e a s t 4 0 d b .
CARRIER
SUPPRESSION
C a r r : i e r s u p p r e s s i o n a t I e a s t 5 0 d b ,
RECEIVER
SENSITIVITY
L e s s t h a n 0 . 5 I n i c r o v o l t a t 5 0 o h m s
irnpedanc e for 6ignal-plus-noise
to
n o i s e r a t i o o f I 0 d b .
AUDIO OUTPUT
AND RESPONSE
Audio output through built-in
speaker
approx.
3 watts to 3,2 ohrn load.
R e s p o n s e e s s e n t i a l l y f l a t 3 0 0 t o 3 0 0 0
c p s o n b o t h t e c e i v e a n d t r a n s m i t .
METERING
PA Cathode current,
0-800 rrla on
t r a n 6 m i t S - M e t e r ,
0 - ? 0 d b o v e r 5 9
FRONT
PANEL
CONTROLS
Function
Switch,
Sideband Selector,
Phone-CW,
AF Gain,
Bandswitch'
M i c .
G a i n , C a r r i e r
B a l a n c e , P A P l a t e
T u n e , P A G r i d T u n e , P A L o a d C o a r s e ,
P A L o a d F i n e , V O X - P T T
REAR PANEL
CONTROLS
AND CONNECTORS
Bias Potentiometer,
Grid -Block CW
k e y j a c k , J o n e s p l u g p o w e ! c o n n e c t o ! ,
VOX Connector,
F requency Control
U n i t C o n n e c t o ! , A n t e n n a , S - M e t e r Z e r o ,
SPDT Relay Terrninal.
FREOUENCY
CONTROL
UNIT CONTROLS
Bardswitch,
Main Tuning,
RF Gain
2
VACUUM TUBE COMPLEMENT
Vl
- 6EW6 VFO Amplifier
YZ - IZBE6 Transrnitter Mixer
v J - o u . t \ . o . u r r v e r
V4 - 6HF5 Power Amplilier
v)
- bill ) rowe r Arnprlri e r
V 6 - I Z B Z 6 R e c e i v e r R F A m p l i f i e r
Y? - IZBE6 Receiver Mixer
V8 - 6EW6 First IF Amplifier
V9 - l28.q.6 Second IF AmPlifier
V l 0 - I z A X 7 P r o d u c t D e t e c t o r / R e c e i v e r
Audio
6BN8 AGC Amplifie r/ Detector
6GK6 Audio Output
l 2 I } A 6 I 0 0 K C C r y s l a l C a l i b r a t o r
7 3 6 0 B a l a n c € d M o d u l a t o r
1 2 I } A 6 C a r l i e r O s c i l l a t o r
I ZAXT Mic. Amplifier / Transrnit
V l ? - O A Z V o l t a g e R e g u l a t o r
DIODE AND TRANSISTOR COMPLEMENT
Q I , i
2 N 7 0 6 O s c i l l a t o r
Q Z *
2 N 7 0 6 E m i t t e r F o l l o w e r
D40l
TS -2 ALC Diode
D4oz
TS -2 ALC Diode
D 6 0 l
T S - 2 S - M e t e r D e l a y
D l ? 0 1 I N 2 9 ? 4 A Z e n e r V o l t a g e R e g u l a t o r
i. Transistor
cornplement identical for
e i t h e i M o d e l 4 I 0 o r M o d e l 4 0 6 8
Frequency Control Unit.
TRANSMITTER OUTPUT IMPEDANCE
Wide - range Pi-network output matche8
a n t e n n a s e 6 s e n t i a l l y r e s i s t i v e a t 2 0 t o
300 ohms impedance with provision8 for
both coarse and fine adju6t,
POWER REOUIREMENTS
v t r -
y l z -
v l 3 -
v l 4 -
v l 5 -
v l 6 -
Filarnents
ReIay
B i a s
Medium
Voltage
High Voltage
DIMENSIONS
1 2 . 6 v o l t s , 5 . 5 a m p
1 2 v o l t 6 d c , 2 5 0 m a
- I l 0 v o l t s d c , 1 0 0 r n a
2 ? 5 v o l t s d c , 1 5 0 m a
800 volts dc, 500 rna
M o d e l 4 0 0 T r a n s c e i v e r
5 - l / 2
i r ' . h i g h , l 3 i n . w i d e ,
I L i n . d e e p
Model 410 Frequencv
Control Unit
5-l lZ A,
t^rgn, 6-l/2
in. wide,
I I in.
d e e p
Control Unit
3 in, high, 1-3/4ir,.
wide,
5 in. deep.
WEIGHT
M o d e ] 4 0 0 T r a n s c e i v e r :
Model 410 Frequency Control Unit
Model 4068 Frequency Control Unit
t 7 l b , ' -
9 1 b .
3 lb.
Sinele Sideband Su
C a r ! i e !
4 0 0 W a t t s P E P ,
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