Elecraft K2ATOBKIT - Manual (Page 2)

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K2ATOBKT Mod Kit Inventory
The parts supplied with K2ATOBKT mod kit are listed below. Other mod kits referenced in Table 1 include their own
parts lists.
Ref. Description Part Qty
RF-C33 Capacitor, 2 pF ("2") or 2.2 pF ("2r2") E530047 1
RF-C68 Capacitor, 10 pF E530006 1
RF-C28,C29 Capacitor, 12 pF E530058 2
RF-C PLL Capacitor, 68 pF E530007 1
RF-C174 Capacitor, 82 pF E530038 1
RF-C30,C36 Capacitor, 470 pF ("471") E530004 2
RF-C91 Capacitor, .001 µF ("102") E530001 1
CTRL-C12 Capacitor, .0027 µF ("272") E530055 1
RF-C RF , CTRL-C31 Capacitor, .047 µF ("473") E530025 2
CTRL-C42 Capacitor, 0.1 µF ("104") E530011 1
RF-D10 Diode, ultra low-drop Shottky, 95SQ015 E560009 1
RF-R50 Resistor, 1.5 ohms, 1/2 watt (brown-green-gold) E500025 1
RF-R64,CTRL-R6 Resistor, 100 ohms, 1/4 watt (brown-black-brown) E500010 2
RF-R1, R2 Resistor, 220 ohms, 1/4 watt (red-red-brown) E500002 2
CTRL-R12 Resistor, 820 ohms, 1/4 watt (gray-red-brown) E500001 1
CTRL-R7 Resistor, 1.78 k, 1/4 watt, 1% (brown-violet-gray-brown) E500026 1
RF-R REFA , R REFB Resistor, 10 k, 1/4 watt (brown-black-orange) E500015 2
RF-R11 Resistor, 47 k, 1/4 watt (yellow-violet-orange) E500067 1
RF-R18 Resistor, 1 M, 1/4 watt (brown-black-green) E500024 1
RF-RFC11 Toroid, 20 turns #26 enamel on FT37-43 core E680003 1
RF-RFC15 RF choke, miniature, 100 µH (brown-black-brown) E690013 1
CTRL-L1 Inductor, shielded, 82 mH ("823", dark gray, cylindrical) E690015 1
Misc. Enamel wire, #26, red (for RFC11) E760002 3 ft.
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Caution: Some parts in the K2 can be damaged by static discharge. While making modifications, use an
anti-static wrist strap. Alternatively, you can touch a grounded, unpainted metal surface (do this often).
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Updating the K2 to revision B involves a considerable amount of component removal. You will need a
full-size, hand-operated vacuum desoldering tool. The Edsyn model AS196 Anti-Static Solder Sucker ($25), is
an excellent choice. Before removing a component, straighten its leads on the solder side (use a small tool while
heating the solder joint). Next, clean out the holes using the desoldering tool. Finally, pull the component out,
being very careful not to damage pads, plated-through holes, or traces on the top or bottom sides of the board.