Elecraft K2 Owner's Manual - Manual (Page 128)

Page 5 RF
Appendix A K2 RF Board Parts List (p/n E850001A and E850001B)
PICTURE Designators Value Description Part Number QTY
L31 12µH , Shielded solenoidal, shielded (BLACK) E690019 1
L33
Pre-wound toroidal
inductor, 41 µH, 5%,
T44-7 core
FRAGILE LEADS--HANDLE WITH
CARE.
SEE TEXT FOR MOUNTING
INSTRUCTIONS USING 1/8W
RESISTOR
E690018 1
L21, L22, L23, L24 T44-10
Toroid (BLACK); 12/10m LPF(.32µH,
.26µH); 17/15mLPF(.45µH)
E680009 4
L16, L17, L18, L19, L20, L25,
L26
T44-2
Toroid (RED); 80m LPF(2.50µH);
20/30m LPF(.58µH, .44µH, .37µH);
40M LPF (1.25µH, 0.89µH)
E680012 7
L5 33µH solenoidal orange-orange-black E690007 1
RFC6 0.68µH solenoidal blue-gray-silver E690008 1
RFC1, RFC2, RFC12,
RFC13,
100µH solenoidal brown-black-brown E690004 4
RFC4, RFC5, RFC8, RFC9 10µH solenoidal brown-black-black E690009 4
RFC15
100µH solenoidal,
subminiature
brown-black-brown E690013 1
RFC7 15µH solenoidal brown-green-black E690006 1
RFC10 1mH solenoidal brown-black-red E690010 1
RFC3, RFC11, RFC14,
RFC16
FT37-43
0.37" dia. ferrite core (GRAY) RFC3,
47µH, 16T; RFC11, 100µH, 20T
RFC14, 18µH, 10T; RFC16, 47µH,
16T
E680003 8 T1, T2, T6, T7
0.37" dia. ferrite core (GRAY)
T1, 9:3T; T2, 12:8T;
T6, 10T bifilar; T7, 5:20T
T3 FT50-43 FT50-43
Toroidal transformer on 0.50" dia.
ferrite core (GRAY). 5T bifilar.
E680008 1
T5 T50-6 T50-6
Toroidal transformer on 0.50” dia.
iron-powder core (YELLOW), 1.3μH,
16:4T
E680010 1