5
Construction
D1 :
1N4148
D2 :
1N4148
2. Diodes. Watch the polarity !
D...
CATHODE
ZD1 : 6V2
3. Zenerdiode. Watch the
polarity !
R1
: 47K (4 - 7 - 3 - B)
R2
: 47K (4 - 7 - 3 - B)
R3
: 330
(3 - 3 - 1 - B)
R4
: 10K (1 - 0 - 3 - B)
R5
: 10K (1 - 0 - 3 - B)
R6
: 2K2
(2 - 2 - 2 - B)
R7
: 470K (4 - 7 - 4 - B)
5. Resistors
R...
CATHODE
ZD...
IC1 :
8p
IC2 :
18p
6. IC sockets. Watch the
position of the notch!
J1
J2, mount for
BAR
mode, do
not mount for
DOT
mode.
1. Jumper wires
+3
+3
+2
+2
+1
+1
0d
B
0d
B
-1
-1
-3
-3
-5
-5
-7
-7
-1
0
-1
0
-2
0
-2
0
BAR DOT
D3 :
1N4007
4. Diode. Watch the polarity !
D...
CATHODE
