EGV-40 CW QRP Transceiver
Page 11
Capacitors
(continued)
C60
100n
104 or 0.1
Output Amp
C-5/6
C61
100n
104 or 0.1
Output Amp
A/B-6
C62
470p
470
(Styroflex)
LPF
A/B-6
C63
1000p (1n)
1000
(Styroflex)
LPF
A-6/7
C64
470p
470
(Styroflex)
LPF
A-7/8
C65
47p
47, 47p or 47J
RX switch
C-7
CV1
60p
Trimmer (brown)
CW Detector
G-10
CV2+CV3
160+70p Var
Tuning Polyvaricon
VXO
I-5/6
CV4
60p
Trimmer (brown)
TX Mix
E-1
Crystals
Checked
Ref.
Frequency
Ident./Comment Circuit section Located
X1
4.915Mhz
4.915
IF
D-7/8
X2
4.915Mhz
4.915
IF
E-7/8
X3
4.915Mhz
4.915
IF
E-7/8
X4
4.915Mhz
4.915
RX DETEC.
F-10
X5
11.981Mhz
11.98
VXO
F-3
X6
11.981Mhz
11.98
VXO
F-3
X7
4.915Mhz
4.915
TX MIX
E-2
Semiconductors
Cheked
Ref.
Type
Ident./Comment
Circuit section
Located
Transistors
Q1
BC547
BC547
MUTE
B/C-9
Q2
BC547
BC547
IF
D-8
X
X
Q3
J310
SMD factory soldered
MUTE
H-8
X
X
Q4
J310
SMDfactory soldered
MUTE
H-9
Q5
BC547
BC547
MUTE
G-9
Q6
BC547
BC547
AGC
G-7/8
Q7
BC547
BC547
VXO
F/G-4
Q8
BC547
BC547
VXO
E-4
Q9
BC557or BC558
BC557 or BC558
KEY switch
E-6
Q10
BC547
BC547
DRIVER
C-2/3
Q11
BC547
BC547
DRIVER
C-4
Q12
2SC2078 or 1969
C20178 or C1969
Output Amp
A-5
IC's
IC1
NE602/SA602
NE602/SA602
RX MIX
D-8/9
IC2
NE602/SA602
NE602/SA602
CW DETEC
F-9
IC3
LM386N
LM386N
Audio AMP
G-6
IC4
78L06
78L06
RX
C/D-6
IC5
78L08
78L08
VXO
H-3
IC6
NE602/SA602
NE602/SA602
TX MIX
D-3
IC7
78L06
78L06
TX MIX
D-4
Diodes
D1
1N4148
1N4148
AGC
H-7
D2
1N4148
1N4148
Output AMP
A-2
D3
Zener 47V 1W
BZX85C47
Output AMP
C-5
D4
1N4148
1N4148
RX limiter
B-8
D5
1N4148
1N4148
RX limiter
B-9
DV1
BB112
Varicap diode BB112
VXO (Fine)
G/H-1
Содержание EGV-40
Страница 13: ...EGV 40 CW QRP Transceiver Page 13 LOCATION MAP...
Страница 34: ...EGV 40 CW QRP Transceiver Page 34 SCHEMATICS...