3.31 Install capacitors C15 and 17
These are 250V 0.33uF capacitors. They were installed last because they are
bulky and would make accessing smaller components more difficult.
3.32 Install connector X4: DC Power in
X4 is a 2.1mm barrel connector for supplying DC power input. The PCB holes are quite large so
the connector must be installed carefully to align it properly with the outline on the PCB silkscreen.
This is particularly important if you are planning to install the amplifier in the optional QRP Labs
enclosure, so that the plug barrel fits through the hole in the rear panel and into the socket. If the
alignment is not accurate, the hole and the barrel will not line up correctly.
50W QCX PA kit assembly
1.00q
32
