PDP-11/45 RSTS/E boot problem

[Brent Hilpert]

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.