On 2019-Feb-06, at 1:21 PM, Noel Chiappa via cctalk wrote: >> From: Brent Hilpert > >> what about the refresh circuitry of the memory board? >> ... >> It might also explain why a number of 4116s were (apparently) failing >> earlier in the efforts ... replacing them might have just replaced them >> with 'slightly better' chips, i.e. with a slightly longer refresh tolerance. > > Ooh, excellent idea!
Is the schematic available for the memory board at-issue? Curious myself to see what approach for refresh DEC used.
