Communication Concepts AN762 Construction Hints - Manual

CONSTRUCTION HINTS FOR THE AN762
These construction hints for the AN762 are only to supplement the Application Note and
are not meant to be used as a construction manual.
HEATSINK PREPARATION
A heatsink of sufficient size to dissipate over 140 watts of power should be used. The
heatsink should be marked, drilled, and tapped before construction begins on the PC
board. Using the bare PC board as a pattern, lay the PC board on the heatsink in the
desired position and mark the four mounting holes and the mounting hole for D1 Drill
and tap the four mounting holes and hole for D1 for 4-40 screws. Then bolt the bare PC
board flush on the heatsink and place the RF transistors through the PC board so they
rest on the heat sink. Mark the mounting holes for the RF transistors. Remove the PC
1