[sdiy] components, smd and pcb

[jorgen.bergfors at idg.se]

>Cons:
>* As the SMD parts are on "the other side" now, I have
   >tothink in mirror image when I route the traces.

   I'd like to add the following:

   * You can't put traces between the pins of the ICs

   * You can't fit as many traces under the IC packages. Under a normal DIL
   package, I usually fit up to four traces.

   /Jorgen - cramming the entire sound generation circuits of the TR-808 on
   one 160x233 mm single sided board.