Elecraft KAT2 User Manual
Page 2

2
Parts Inventory
The table below lists all parts in the kit. If you have trouble identifying any of these items, consult the
K2 Owner's manual, which has photographs of similar parts.
Components on KAT2 Module
Ref. Description
Qty.
C1
Capacitor, 10 pF, 500 V NPO disc
1
C2
Capacitor, 22 pF, 500 V NPO disc
1
C3
Capacitor, 39 pF, 500 V NPO disc
1
C4
Capacitor, 82 pF, 500 V NPO disc
1
C5
Capacitor, 150 pF, 500 V NPO disc
1
C6
Capacitor, 300 pF, 500 V silver mica, CDE FD301J03
1
C7
Capacitor, 620 pF, 500 V silver mica, CDE FD621J03
1
C8
Capacitor, 1200 pF, 500 V silver mica, CDE FD122J03
1
C20-27, C31-38,
C42, C45-47,
C50-C53, C57, C60
Capacitor, .001 µF, 25 V("102") Note: Two of these capacitors
may be physically smaller than the other capacitors even t
though they have value. If so, reserve those capacitors for use at
C45 and C60.
26
C58, C59
Capacitor, 0.1 µF, 25 V ("104")
2
C54
Capacitor, 100 pF, 200 V, NPO disc ("101")
1
C55
Ceramic trimmer, 5-30 pF
1
D1, D2
Diode, 1N5711
2
E1
Screw terminal, PC-mount, Keystone #8190
1
J1, J2
BNC jack, PC-mount
2
J4, J5
Conn., 16-pin female, .1" spcg., gold, Samtec ESW-116-23-G-S
2
J3
Not used (connections are soldered; see text)
0
K1-K18
DPDT latching relay
18
L1-L7
Toroidal inductor, T50-2 core (RED); see text
7
L8
Toroidal inductor, T50-1 core (BLUE); see text
1
P4, P5
Conn., 16-pin male, .1", gold, Samtec MTSW-116-22-G-S-420
2
R1, R2
Trimmer potentiometer, 100K
2
R6 Resistor,
47
Ω, 5%, 1/4-watt (yellow-violet-black)
1
R3 Resistor,
200
Ω, 5%, 1/4-watt (red-black-brown)
1
R5 Resistor,
470
Ω, 5%, 1/4-watt (yellow-violet-brown)
1
R4
Resistor, 3.3 K, 5%, 1/4-watt (orange-orange-red)
1
T1
Toroidal transformer, FT37-43 core (gray); see text
1
U1 IC,
Microcontroller,
16C77
1
U2 IC,
EEPROM,
25LC320
1
U3
IC, 6-volt regulator, 78L06
1
U4 IC,
Op-amp,
LM358
1
Z1 Ceramic
resonator
w/internal capacitors, 4.0 MHz
1