Elecraft KX1 Manual User Manual

Page 58

LECRAFT

Slide the shrink tubing you placed on the red wire over the joint

and shrink it in place to insulate the connection. You can shrink it
using hot air from a blow dryer or by simply placing your soldering
iron very close to the tubing and allowing its radiant heat to shrink it.
If you place the barrel of a hot soldering iron (the part just behind the
tip) where it almost touches the tubing and parallel to it, the tubing
should begin to shrink in about 30 seconds. Repeat at two or three
places around the tubing to shrink it evenly and snugly.

Slide the excess red wire under the right hand holder as shown so

the splice and wire lies down near the bottom cover. When the unit is
assembled, the space between the battery holders is taken up by the
Key jack (J3) and the crystals on the circuit board.

Line up the black wire with the red wire in the upper left corner

that will go to the power plug. Cut the black wire to the same length as
the red wire and strip 1/4” from the end.

Locate the crimp terminals and housing for plug J5 (Figure 26).

Crimp and solder the terminals to the stripped red and black wires.

Insert the terminals into the housing until they latch. Tug on the

wires to verify that the terminals are locked in place.

Double check your installation by attaching J5 to plug P1 and

verify that the red wire goes to the terminal marked + on the circuit
board. If you got them backward, press gently with a thin screwdriver
or knife blade in the slots on the housing to release the terminals.

HOUSING

RED WIRE

BLACK WIRE

RED WIRE MUST GO
IN THIS SIDE

Figure 26. Assembling Battery Supply Jack J5.

We strongly recommend the use of 1.5-volt cells,

preferably 2.9 AH lithium (Energizer type L91) or alkaline.
1.2-volt cells, e.g. NiMH, can also be used, but have some
drawbacks. See page 62 for details.

This completes Part III of the Assembly.