Elecraft K2 Owner's Manual User Manual
Page 139
Page 3
Control
Appendix A
K2 Control Board Parts List (p/n E850002)
PICTURE
Designators
Value
Description
Part Number
QTY
R1
50K Trimmer
AGC Threshold
E520011
1
RP5
470,5R ISO "10A3-
471G"
SIP resistor pack, 10 pins; ALT:
"770103471"
E510015
1
RP1
3.9K,5R ISO
"770103392"
SIP resistor pack, 10 pins; ALT:
"10A3392G"
E510014
1
RP6
5.1K,5R ISO
"770103512"
Sip resistor pack, 10 pins; ALT:
"10A3512G"
E510013
1
RP7
33K,4R ISO "8A3-
333G"
SIP resistor pack, 8 pins; ALT:
"77083333"
E510016
1
RP3
47K,5R ISO "10A3-
473G"
SIP resistor pack, 10 pins; ALT:
770103473"
E510007
1
RP2, RP4
82K,4R ISO
"77083823"
SIP resistor pack, 8 pins; ALT:
"08A3823G"
E510011
2
U1
SA602AN
AGC Mixer (SA612 Alt.), 8 pins
E600006
1
U2
LM833N
Dual Op Amp, 8 pins
E600012
1
U3
LMC6482AIN
Dual Op Amp, 8 pins
E600011
1
U9
LM380N-8
Audio Amplifier, 8 pins
E600019
1
U7
25LC320
EEPROM; 4K x 8, 8 pins
E600009
1
U10
LMC660
Quad Op Amp, 14 pins
E600025
1
U8
MAX534
Quad, 8-bit DAC, 16 pins
E600031
1
U4
LM2930T-8
8 Volt regulator, TO-220 Pkg.
E600018
1
U5
78M05 Alt: 7805,
7805T, L7805
5 Volt regulator, TO-220 Pkg.
E600024
1
U6
PIC18C452
MCU, Programmed, 40 pins
E610002
1