[Duo2400] Duo mainboard upgrades.

[Tom and Lisa P]

>I've read that the Duo 2300 mainboard supported all
>previous Duo LCD screens because it was also available
>as a (factory installed) upgrade.
>
>How did that work with the CPU heatsink "tab" on the
>frame being in different places on the 030 and 040
>models?

The 2300 motherboard came with a "bat wing" thin heat sink that was 
placed between the tab and the CPU.

>
>I'm still trying to decide whether or not to keep
>the Duos or see if anyone will pay a premuim to own
>an Enineering Sample 230 and a Yeager Prototype 280.

The ROM dumps should be interesting.  how much VRAM does the 280 
prototype have ?

Mad Dog