(Of course once this was realised there were all sorts
of 'creative'
solutions to save the cost of the right chip. Bending the pins of a 7106
right over, soldering one eupside-down to a header, or even mounting a
DIL socket on the solder side of the instrument PCB...)
(insert expletive here) happens! :oD
http://www.orkut.com.br/Main#AlbumZoom.aspx?uid=12070581936206943299&pi…
(an entire linear adjustable power supply, soldered backyards :oD