QRP Labs QCX-mini - Install 500-Ohm Multi-Turn Trimmer Potentiometer

3.16 Install 50K multi-turn trimmer potentiometers
There are two 50K multi-
turn trimmer
potentiometers, R17 and
R24. They are the small
blue box components with
label “’503”.
The trimmer
potentiometers must be
prepared before
installation by cutting
off the small plastic
ledges with a wire-
cutter, as described in
the preceding section.
The screws on the resistors must match the screws on the PCB silkscreen and layout
diagram.
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