> >
> >           (board) ----------------
> >      (transistor)    *****
> >       (heatsink)  ================
>
> Outstanding idea. I couple even mount the sink perpendicular
> to the board
> and have the transistors out on the edge.
>

Yes, whatever arrangement works for you. Let me just add that it is
*significantly* easier to secure the heatsink to the board if they are
sandwitched; all it takes is some screws and spacers.

Another assembly hint for anyone wanting to use this: attach the transistors
to the heatsink first, bend leads if necessary, then mount the heatsink to
the board using whatever arrangement you have come up with. Only then do you
solder the transistors in place. This makes sure there is minimal stress on
the transistor leads.

If you solder the transistors to the board first, and then attach the
heatsink, i can guarrantee that they will fail faster over time than the
method described above.

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