Velleman К8060 - Manual (Page 18)

18
19. Diagram
Diagram
GND
+40V
GND
1N5404
D6
1N5404
D3
1N5404
D5
1N5404
D4
AC-0
SK6
AC-0
SK5
AC
SK3
LS+
SK8
LS-
SK7
4700µ/50V
C13
4700µ/50V
C12
AC
SK4
-40V
100nF
C7
100nF
C8
47nF
C6
47p
C2
47p
C1
680p
C4
47p
C3
680p
C5
10µF
C9
33K
R18
47K
R1
3K3
R11
3K3
R9
3K3
R3
10
R10
LED3RL
LD1 TIP142
T8
TIP147
T7
GND
SK1
In
SK2
0.47 / 5W
R19
0.47 / 5W
R20 BC547
T6
BC547
T4
BC557
T5
BC639
T3
330R
R4
100R
R2
1K8
R14
680R
R7
3K3
R8
500R RV1
ZB9V1
ZD1
+40V
+40V +40V
GND
GND
GND GND
-40V
-40V
-40V
470µ/16V
C11
3K3
R13
1K5
R12
47R
R6
220R
R17
47R
R16
1N4148
D1
1N4148
D2
220R
R5
100µ/50V
C10
Bias current (cold)
10-15mV over R19
Bias adj.
BC640 T1
BC640
T2
1K
R15