[Simh] Hardware Requirements

[Pontus]

Hi

I just joined the list, this is my first post :)

I was wondering, what are the hardware requirements of simh? What kind 
of CPU would be necessary to emulate a PDP-15 at or over its real world 
speed?

The reason I'm asking is that I want to build a small system to 
interface with PDP-15 panel. I'm looking at the beagleboard, but 
wouldn't mind something simpler and/or cheaper.

Kind Regards,
Pontus.