> The most recent JDR Microdevcies catalog I
> have lists the mc68881 at $150 (but one can probably do better).
> 
> Does anybody know of a source of low-cost mc68881 (FPU) chips?

I seem to remember them more in the neighborhood of $50.  Take a look at
the back advertisements in a MacWeek magazine.  A number of places sell
them since a number of Macs and mac accelerators make the FPUs optional.
You should have a choice of speed, too.

e.g., the Chip Merchant (800)426-6375 x 3 (619-268-4774) has 68882-25
and 68882-23 for $28.

You could also probably ask for good sources on the comp.sys.m68k
newsgroup.  ;-)

-allen

-- 
Allen Briggs - end killing - allen.briggs@bev.net ** MacBSD == NetBSD/mac68k **