DSW-II-80 Transceiver kit -Instructions
D. Benson, K1SWL
02/12/04 p.
9
54)
Q4- 2N3906- Orient the flat side of this
device to match that of the pictorial and
silkscreen.
55)
R20 - 10K resistor (brn-blk-orange)
56)
C117- 10 uF electrolytic cap
.
This part is
polarity- sensitive.
Install the longer wire lead
on the '+' side of the component silkscreen.
The black band on the component case
denotes the negative or ' - ' side.
57)
C118- .01 disk cap
58)
R22- 51 ohm resistor (grn-brown-blk)
59)
R23 - 470 ohm resistor (ylw-violet-brn)
60)
U8 socket- Orient with the notched end of the
socket matching that of the board silkscreen.
61)
C119- 220 uF electrolytic cap.
This part is
polarity- sensitive.
62)
C120 - .1 uF monolithic cap
63)
C29- .01 disk cap
64)
C30- .01 disk cap
65)
U9- 78L06 IC (3 leads) Orient the flat side of
this device to match that of the pictorial and
silkscreen.
66)
C122 - .01 disk cap
67)
D5- 1N4148
.
This part is polarity- sensitive.
see the sketch on page 7.
68)
D6- 1N4148.
This part is polarity- sensitive.
69)
R6- 510K resistor (grn-brn-yellow)
70)
C16- 150 pF disk cap
71)
R2- 51 ohm resistor (grn-brn-blk)
72)
R4- 10K resistor (brn-blk-orange)
73)
R3- 10K resistor (brn-blk-orange)
74)
C104- 150 pF disk cap
75)
R5- 510K resistor (grn-brn-yellow)
76)
U3 socket- Orient with the notched end of the
socket matching that of the board silkscreen.
77)
R13- 1M resistor (brn-blk-green)
78)
C105- 47 uF electrolytic cap
.
This part is
polarity- sensitive.
79)
C106- .1 uF monolithic cap
80)
R7- 10 ohm resistor (brn-black-black)
81)
R12- 1M resistor (brn-blk-green)
82)
C19- 820 pF poly cap
83)
C20- .0022 uF poly cap
84)
C18- .033 uF poly cap
85)
Q2- 2N7000
This part is static-sensitive
86)
R11- 510K resistor (grn-brn-yellow)
87)
R10- 22K resistor (red-red-orange)
88)
Q1- 2N5485/6 Orient the flat side of this
device to match that of the pictorial and
silkscreen.
89)
R8- 1M resistor. (brn-blk-green)
90)
R9- 4.7M resistor (ylw-violet-green)
91)
D1-D4.
These parts are polarity- sensitive
.
92)
C21- 47 uF electrolytic cap
.
This part is
polarity- sensitive.
93)
R14- 10 ohm resistor (brn-black-black)
94)
R26- 100 ohm resistor (brn-black-brown)
95)
D8- 1N4148
This part is polarity- sensitive.
96)
D9- 1N4751A
This part is polarity- sensitive.
97)
L7- Using the supplied
12"
(30 cm) length of
the thicker (#24) magnet wire, wind
14
turns
on an
FT37-61
(grey) toroid. Prepare leads as
described earlier and install.
98)
C34- 1200 pF monolithic cap
99)
C35- 560 pF monolithic cap
100)
L10- Cut a
16"
(40 cm) length of the thinner
(#26)magnet wire. Wind
25
turns on an
T37-2
(
red
) toroid.. Prepare leads as described
earlier and install.
101)
C33- 2200 pF monolithic cap
102)
C32- 1500 pF monolithic cap
103)
L9- Cut a
16"
(40 cm) length of the thinner
(#26)magnet wire. Wind
25
turns on an
T37-2
(
red
) toroid.. Prepare leads as described
earlier and install.
104)
C31- .1 uF monolithic cap
105)
L8- Cut a
12"
(30 cm) length of the remaining
magnet wire. Wind
18
turns on the
T37-2
(
red
) toroid.. Prepare leads as described
earlier and install.
106)
C121- .01 disk cap
107)
Install Q5 in an upright position.
Make sure
that the integral metal tab on this device
faces toward the rear of the board
(i.e.,
towards the connectors).
Using the supplied machine screw and nut,
affix the heat sink (finned, black-metal) to the
metal tab on the transistor. Select the heat-
sink orientation which results in the lower
vertical height above the board. Ensure that
