Elecraft K1 User Manual
Page 69
Appendix A
K1 RF Board Parts List
PICTURE
Designators
Description
Part Number
QTY
J3
Keyer Jack, threaded bushing, Stereo, vertical mount
E620027
1
J2
Headphone jack, non-threaded, Stereo, with switch,
horizontal mount
E620028
1
J9, J10
2-pin, pads only (coax soldered to connections--see text)
0
K1
Latching Relay, 5V; in plastic tube
E640001
1
L1
T50-6; Toroid (yellow), approx. 4.4µH; 33 turns
E680010
1
L2
FT37-43; Toroid (gray); 16 turns
E680003
1
T1
FT37-43; Toroid (GRAY), 4:20, receiver mixer input
E680003
1
T2
FT37-43; Toroid (GRAY), 5:20, product detector input
E680003
1
T3
FT37-43; Toroid (GRAY), 12:4, driver to final
E680003
1
T4
FT50-43; Toroid (GRAY, larger), 5 turns bifilar
E680008
1
RFC8
Supplied with 80-m band kit (2-band module only)
0
RFC9
15 µH RF choke; min. solenoidal; color code: brn-grn-black
E690012
1
RFC2, RFC5
22 µH RF choke; soleniodal, color code: red-red-black
E690000
2
RFC1
33 µH RF choke; soleniodal, color code: orange-orange-
black (NOTE: orange bands may appear brown)
E690007
1
RFC3, RFC4, RFC6, RFC7
100 µH RF choke; soleniodal,
color code: brown-black-brown
E690004
4
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RF