Checking For Solder Bridges - Ten-Tec SSB-CW-AM Instruction Manual

CHECKING FOR SOLDER BRIDGES

This view of the main circuit board solder-side traces is exactly as you would
view the board itself, with no need to look "through" the board from top to
bottom. If you wonder whether certain points should be joined by solder,
compare what you see on the board with this view of the traces.
1254 Reference 40