Instructions

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
0
d
B
0
d
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