Place the IRF510 transistors through the PCB holes on the underside of the PCB, as shown
below.
DO NOT SOLDER!
Turn over the heatsink/enclosure lid assembly,
and slide the PCB carefully and slowly into the
slots in the enclosure.
The PCB slots are shown here (right). By
having the PCB upside-down the IRF510
transistors (which are NOT yet soldered) will
fall away from the enclosure lid, allowing them
to slide past the silicone pads.
Eventually when the PCB is slid all the way in, you should be able to see through the IRF510
screw mounting hole, all the way through the silicone pad, to the heatsink hole. All lined up!
50W QCX PA kit assembly
1.00q
39