Vintage Simmons Drums (UK) Users Group

> 
> I had some problem with my EPB (i think is dead)
>   i spoke  with Michael Buchner, he tkink that the problem is  
> internal RAM (an old INTEL D2186) that is difficult to find.

You can probably adapt something else to suit.  A quick google suggests
it's a "Pseudo-static Dynamic RAM", which sounds like it must have its
own refresh logic on-chip.  There's probably nothing to stop you just
using a modern static RAM chip, since they're much larger these days
than they were when the EPB was built.

Gordon