EA3GCY ILER-20 MK2 - Page 11

ILER-20 MK2 SSB QRP Transceiver Kit Page 11
Crystals
Checked
Ref.
Frequency
Ident./Comment
Circuit section
Located
X1
3.276MHz.
I.F.
E-7
X2
3.276MHz
I.F.
E-6
X3
3.276MHz
I.F.
E-5
X4
3.276MHz
I.F.
E-4
X5
3.276MHz
BFO
J/K-6
X6
11.000MHz or 11.046MHz
VXO
J-3
X7
11.000MHz or 11.046MHz
VXO
I-3
Semiconductors
Checked
Ref.
Type
Ident./Comment
Circuit section
Located
Transistors
Q1
BC547
BC547
RX RF mute
C-8
Q2
BC547
BC547
Carrier switch
D-6
Q3
BC547
BC547
Audio AGC-preamp
H-9
Q4
BC547
BC547
Audio AGC-preamp
H-8
C44
100n
104 or 0.1
BFO offset
L-4
C45
270p
n27 or 271
BFO
I-7
C46
270p
n27 or 271
BFO
J-6
C47
1n
102 or 0.001
BFO
I-7
C48
100n
104 or 0.1
BFO
J-7
C49
10uF
10uF 25V or 35V (elec)
BFO/VXO supply
K-7
C50
100n
104 or 0.1
BFO/VXO supply
I-8
C51
100n
104 or 0.1
VXO
K-3/4
C52
100p
n10 or 101
VXO
K-4/5
C53
100p
n10 or 101
VXO
J-4/5
C54
47p
47p or 47J
VXO
J-4/5
C55
1n
102 or 0.001
VXO
H-4
C56
100n
104 or 0.1
VXO
K-4/5
C57
1n
102 or 0.001
TX Pre driver input
G-3
C58
--
NOT USED
TX Pre-driver
I-1/2
C59
100n
104 or 0.1
TX supply
C-5
C60
100n
104 or 0.1
TX Pre-driver
F1
C61
100p
101 or 100J
TX Pre-driver BPF
H-1
C62
8p2
8p2 or 8.2
TX Pre-driver BPF
G-2
C63
100p
101 or 100J
TX Pre-driver BPF
F1
C64
100n
104 or 0.1
TX Driver
E-3
C65
100n
104 or 0.1
TX Driver
E/F-2
C66
1n
102 or 0.001
TX Driver
D-1
C67
100n
104 or 0.1
BIAS supply
D-4
C68
10n
103 or 0.01
TX Driver
B-1
C69
10n
103 or 0.01
TX Driver
C-2
C70
100n
104 or 0.1
TX Driver supply
C-2/3
C71
100n
104 or 0.1
TX Driver supply
E-3
C72
100n
104 or 0.1
BIAS supply
C-3
C73
100n
104 or 0.1
TX Out Amp supply
C-5
C74
10uF
10uF 25V or 35V (elec)
TX Out Amp supply
C/D-6
C75
100n
104 or 0.1
TX Out Amp
B-2/3
C76
10n
103 or 0.01
TX Out Amp
B-3/4
C77
100n
104 or 0.1
TX Out Amp supply
B-4
C78
100n
104 or 0.1
TX Out Amp
A-5
C79
220p
220 (polystyrene)
LPF
A-6
C80
470p
470 (polystyrene)
LPF
B-6
C81
220p
220 (polystyrene)
LPF
C-6
C82
100n
104 or 0.1
PTT
G-6
C83
27p
27p or 27J
Offset BFO
K-6
CV1
120p
Trimmer (black)
BFO
J-5
CV2 + CV3
Polyvaricon (tuning control)
VXO Tuning
L-2/3/4