On 23 Jun 2001, Iggy Drougge wrote:
  BTW, a while ago I looked at a very old 3Com
full-length card. The PCB
 was a rich blue, much like the 3C501, but that's a small eight-bit ISA
 card, this one was full-length. For some reason the seller thought he
 could ask more for this card than the 3C509s of another seller, so I
 skipped them. Otherwise, they would have been a nice curiosity. 
 Chances are good that these were 3C505 cards, which you need to make an
 ISA-bus Apollo workstation speak ethernet.
 Better still if they had the boot ROMs on them, which would have made them
 real Apollo parts and thus capable of netbooting same. 
As I told Ethan, I don't need them now, but I'd rather have more
than see them in a landfill. OTOH, mine work, and have ROMs, so
I can dupe the ROMs should anyone need a working Apollo 3c505 ROM.
Regards,
-doug q