
ICS-22 Speaker Station | User Guide
Page 29
Resistors
Designator
Description
Qty
R1 R12 R16 R17 R13
4.7K OHM 1/4 Carbon Film 5% 5
R2
6.8K OHM 1/4 Carbon Film 5% 1
R6
1.5K OHM 1/4 Carbon Film 5% 1
R4 R8
1M OHM 1/4 Carbon Film 5%
2
R11 R15
100K OHM 1/4 Metal Film 1%
2
R14
20K OHM 1/4 Carbon Film 5%
1
R3 R10
10K OHM X5 SIP ISOLATED
2
R9
100K OHM X4 SIP ISOLATED 1
R5
Pot 50K TRIMPOT
1
Diodes and transistors
Designator
Description
Qty
D3 D4 D5 D6 D7 D8
Diode 1N4148 SIGNAL 10MA
75PIV
6
Q1 Q2
Transistor PN2222A NPN 30V
2
IC1 IC2
IC LF353 BIFET OP AMP
2
D1 D2
Diode 1N5231B ZENER 5.1V
.5W 5%
2
D9
Diode 1N4740A ZENER 10V
0.5W 5%
1
Miscellaneous
Designator
Description
Qty
Panel Mic Jack PHONE JACK
1
R5
Pot SHAFT FOR PIHER POT
BLACK
1
S1
Switch DPDT TOGGLE
1