3.11 Install Low Pass Filter capacitors C9 and C21
(80m only)
These two capacitors are 250V NP0/C0G types. The value is 180pF (code “181”) and
the
capacitors are ONLY installed for the 80m version of the kit.
3.12 Install capacitors C1, 2, 3, 6, 7, 13 and 16
These are 1uF 50V ceramic capacitors, code “105”.
Note that C6 and C7 are very close to the bifilar transformer T2. As long as you have positioned
T2 nicely over the circle printed on the silkscreen, there should be enough space for the
capacitors.
Note that C16 holes are spaced 0.2-inches which does not match the capacitor’s 0.1-inch wire
spacing; this is a minor PCB design error. Just spread the wires of the capacitor to fit in the holes.
Make sure to install capacitors only inside the rectangular boxes indicated on the PCB silkscreen.
50W QCX PA kit assembly
1.00q
22
