The final completed 50W Amplifier kit should look like this:
5
ENCLOSURE OPTION installation
When using the QRP Labs enclosure designed specifically for this 50W PA kit, the IRF510 power
transistors must first be bolted to the enclosure assembly, BEFORE soldering to the PCB.
Otherwise there will be a small gap (around 1mm) between the enclosure/heatsinks and the
IRF510 tab. Tightening the mounting bolt to eliminate that gap would put undue mechanical stress
on the situation.
The enclosure consists of an extruded top piece (drilled for the heatsink), plain bottom section,
front and rear panels, 8 panel screws, and 4 self-adhesive rubber cabinet feet.
50W QCX PA kit assembly
1.00q
37
