🚀 go-pugleaf

It may be easier to cut out the old chip, solder 14 little jumper wires to the
pads, glue a 7406 in a standard DIP to the board (upside down, use Crazy glue),
then solder the jumpers to the upraised pins of the DIP.

Unless you have a soldering iron with a very fine tip, you may have trouble
making the connections to the pads on the board.  What I do in this situation
is to get out my old soldering GUN, wrap about 4 or 5 turns of heavy copper
wire around the tip, then bend the end of the wire forward to form a tiny
tip.  The tiny tip should be no more than about 1/2 inch from the regular
tip of the gun, because otherwise you lose too much heat to melt solder.