Eddystone 990R - Page 45

Ref
Description
Part
No.
T1
T2
T3
T4
T5
T6
T7
T8
T9
T10
Til
T12
T13
T14
CHI
CH2
CH3
CH4
CH5
CH6
CH7
CH8
CH9
CH10
to
CHI
7
CH18
CH19
CH20
CH21
CH22
CH23
CH24
CH25
CH26
CH27
C2
etc.
C6
etc.
C30
C38,C78
C47
etc.
TRANSFORMERS
10.7
MHz
IF
Transformer
10.7
MHz
IF Transformer
RF
Tuner Unit)
IF Pre-amplifier)
10.7
MHz
IF
Transformers
(Cascaded
to form
200 kHz filter)
10.7
MHz
ip
Transformer
(Main
IF)
10.7
MHz
IF
Transformer
(Main
IF)
AM
Detector
Transformer (Main
IF)
Limiter
Driver
Transformer
(Main
IF)
FM
Discriminator
Transformer
(Main
IF)
Noise
Amplifier
Output
Transformer (Main
IF)
Line
Output
Transformer
(6000)
Loudspeaker
Transformer
(jfl)
Power
Transformer
D3757
D3767
D3732
D3781
D3782
D3717
D3718
D3768
6933/IP
6934/IP
D3719
7020P
7021P
7022P
CHOKES
RF
Amplifier
Emitter
Choke
Filter
Choke
(lOV feed
to
RF
Amplifier)
Low-pass
Falter
Choke
)
Mxer
Ip
0utput Filter
Low-pass
Filter
Choke
)
Filter
Choke (lOV
feed
to
Crystal
Oscillator)
Anti-parasitic
Choke (Crystal
Isolator)
Tone
Oscillator
Choke
Gain
Control
Filter
Choke
(Main
IF)
Gain
Control
Filter
Choke (Main
IF)
Filter
Chokes
(10V feeds
on
Main
IF Board)
Discriminator
Output
Filter Choke
RF
AGC Choke
IF
AGC
Choke
CW
Detector
Output
Filter
Choke
Filter
Choke
(lOV feed to
CW Detector)
Noise
Amplifier
Inter-stage
Choke
Noise
Rectifier
Output
Filter
Choke
Filter
Choke
(lOV feed
to
Noise
Amplifier)
Video
Amplifier
Input Choke
Video
Amplifier
Output
Choke
TRIMMERS
2*5-6pF
Ceramic
l-6pF
Tubular
Ceramic
(Part
of
Tuner Assembly)
4.5-20pF
Ceramic
7-35pF
Ceramic
(also
C79)
10-60pF
Ceramic
JK
D2854
D3755
D3755
D2854
D2854
D3755
.
D3558
l
X'
D3558
D3558
D3558
D3558
D3558
D3558
D3558
7341P
683
6P
D3558
D2854
D2854
lU
7288P
7289P
7291P
7290P
-
44
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