Altronics K 5171 Podręcznik - Strona 7

Przeglądaj online lub pobierz pdf Podręcznik dla Wzmacniacz Altronics K 5171. Altronics K 5171 10 stron. Ultra low distortion preamplifier with tone controls

Drukuj stronę
K 5171
10W
1kW
2 x BC337
100 F m
100nF
470 F m
+
2 x BC327
470 F m
1kW
+
22W
+
100 F
m
35V
100kW
CON5
22kW
470pF
100 F
m
* 10W
+
* 10W
100 F m
35V
100kW
22kW
470pF
2.2kW
2.2kW
IC4
IC4
5532
5532
47pF
2.2kW
2.2kW
100nF
+
IC3
IC3
5532
5532
47pF
Fig.10: use this PCB overlay diagram as a guide when building the main preamp board. Don't forget to cut the pot shafts to length before
soldering them. You will also need to remove some of the passivation layer from the top of VR2 and VR3 to allow you to solder the GND wire
to Earth the pot bodies. Bend the leads of LED1-LED3 and IRD1 to suit your case, so that the LEDs protrude through the front of the case.
You can make a hole for infrared light to reach IRD1 at the same level and cover it with a small piece of perspex to prevent dust ingress. See
the parts list for details on the red capacitors.
7
10kW
LED1
A
POWER
VR4
ACK.
LED2
A
1kW
100nF
IC5 PIC16F88-I/P
IC5 PIC16F88-I/P
4MHz
X1
LED3
A
MUTE
100 F m
IC2
IC2
5532
5532
FB2
FB2
470pF
IC1
IC1
5532
5532
FB1
FB1
470pF
R1 *
VOLUME
R2 *
100W
S4
100W
10kW
LK4
GND
1kW
1kW
1kW
4x 15nF
1kW
1kW
1kW
TREBLE
1.8kW
1.8kW
4x 100nF
1.8kW
1.8kW
BASS
100 F m
100 F m
ULTRA LOW DISTORTION PREAMPLIFIER WITH TONE CONTROLS