33
6
+6V
-6V
+6V
-6V
-6V
+6V
-6V
+6V
+6V
+6V
-6V
-6V
-6V
-6V
+6V
+6V
A
B
C
D
+6V
-6V
+6V
-6V
+6V
+6V
-6V
-6V
-6V
+6V
-6V
+6V
-6V
-6V
+6V
+6V
A
B
C
D