EA3GCY ILER-20 MK2 - Page 12

ILER-20 MK2 SSB QRP Transceiver Kit Page 12
Q5
BC547
BC547
Audio AGC-preamp
I-9
Q6
BC547
BC547
Audio AGC-preamp
I-10
Q7
BC547
BC547
Audio amp mute
L-7
Q8
BC547
BC547 (option)
BFO offset switch
K-5
Q9
BC547
BC547
BFO
J-7
Q10
BC547
BC547
VXO
J-4
Q11
BC547
BC547
VXO
I-4
Q12
2N2222A
2N2222A
TX Pre-driver
I-1/2
Q13
2N5109
2N5109
TX Driver
C/D-1
Q14
2SC1969/2078
2SC1969 or 2SC2078
TX Out Amp
A-2/3
IC's
IC1
UA741
LM741CN or UA741
Mic preamp
F-8/9
IC2
SA/NE602
SA602AN or NE602AN
DSB gen/Rx mix
F-6/7
IC3
SA/NE602
SA602AN or NE602AN
SSB Dem/Tx mix
F-3/4
IC4
LM386
LM386N-1
Audio Amp
J/K-9
IC5
78L06
MC78L06
Dem/Gen supply
H-3/4
IC6
78L08
MC78L08
BFO/VXO supply
H-8
IC7
78L08
MC78L08
BIAS Driver
E-4
IC8
78L05
MC78L05
BIAS Output Amp
D-3
Inductors/RF Transformers
Checked
Ref.
Value/Type
Ident./Comment
Circuit section
Located
L1
Axial 100uH
brown,black,brown
Rx attenuator
B-10
L2
Axial 100uH
brown,black,brown
DSB gen/Rx mix
G-4
L3
Axial 100uH
brown,black,brown
SSB Dem/Tx mix
G-3
L4
Axial 82uH
grey,red,black
BFO
K-5
L5
Axial 100uH
brown,black,brown
BFO
I-7
L6
T68-2
53 turns, see text
VXO
J/K-1/2
L7
Axial 100uH
brown,black,brown
VXO
K-4
L8
VK200
ferrite wound
Driver
D-3
L9
Axial 100uH
brown,black,brown
Output Amp
B-3
L10
VK200
ferrite wound
Output Amp
B/C-4
L11
T37-2
11 turns, see text
LPF
A-7
L12
T37-2
11 turns, see text
LPF
C-7
T1
KANK3335 (1u2H)
K3335 or 1u2H
BPF Rx
B-9
T2
KANK3335 (1u2H)
K3335 or 1u2H
BPF Rx
D-9
T3
KANK3335 (1u2H)
K3335 or 1u2H
BPF Pre Driver
G-1
T4
KANK3335 (1u2H)
K3335 or 1u2H
BPF Pre Driver
E-1
T5
FT37-43
toroid 10t 3t see text
Driver
B/C-2
T6
FT37-43
Toroid 8+8 see text
Output Amp
A/B-4
Note:
The components written in bold are different according t o the version of ILER that you have chosen
(ILER-40, ILER-20 or ILER-17). In the kit, you will find all these components together in a separate bag.
Diodes
D1
1N4148
4148
RX Att
B-10
D2
1N4148
4148
RX RF limiter
A-8
D3
1N4148
4148
RX RF limiter
A-8
D4
1N4148
4148
Audio AGC-preamp
H-10
D5
1N4148
4148
Audio AGC-preamp
I-10
D6
1N4007 or 4001
1N4007 (1)
AGC preamp supply
J-10
D7
1N4007 or 4001
1N4007 (1)
BIAS supply
A-1/2
D8
Zener 47V 1W
BZX85C47
TX Out Amp
A-3
D9
LED - double
Bicolor
LED
L-5/6