Elecraft KX1 Manual - Manual (Page 21)

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LECRAFT
Following the same procedure, install capacitor C30, .01 µF (103)
next to C31.
Turn the board top face up so that KX1 is in the upper left corner.
In the following steps you will install several capacitors on the top of
side of the board. Be sure that the top of no capacitor is more than
5/16” (7.9 mm) above the board. Be especially careful of the larger
electrolytic capacitors (see Figure 8). Use a ruler as needed to check
the height.
Figure 8. Maximum Height of Capacitors on Top of Board.
Install capacitor C6, .01 µF (103) directly above diode D3 on the
left edge of the board.
Install capacitor C37, .01 µF (103) between D2 and resistor pack
RP3.
Install capacitor C12, .1 µF (104) between D2 and the socket
for U1.
Install capacitor C5, .1 µF (104) below the socket for U1 near the
bottom edge of the board.
Install the following capacitors between the socket for U1 and the
bottom edge of the board:
_ C25, 27 pF (270)
_ C24, 27 pF (270)
Install the following capacitors to the right of resistor pack RP5:
_ C32, .01 µF (103)
_ C33, .01 µF (103)
Install capacitor C55, .01 µF (103) on the bottom edge of the
board about 1-1/4” (2 cm) to the right of resistor pack RP5.
Locate electrolytic capacitor C38 (10 µF, 35 v) and inspect the
leads. One lead should be shorter than the other. The capacitor body
will have a stripe and a minus sign (—) above the shorter lead.
Locate the printed outline for C38 to the left of RP3 on the top
face of the circuit board. Note that there are two solder pads for the
capacitor leads: one is round and one is square. A plus (+) symbol is
printed next to the square pad.