21 Jun
2021
21 Jun
'21
11:43 a.m.
On 6/21/21 10:55 AM, Paul Koning via cctalk wrote:
memory. Nobody explained why that was a real
problem.
> Core memory is fairly sensitive to
temperature. In the case of the 1620, there is a heating system that brings the core
memory box up to its operating temperature, which is why it takes several minutes after
you turn on power before the machine will run.
> Possibly the fan problem meant the
temperature control system was no longer adequate.
For some (jprobably hallucinatory) reason, I thought there was a project
at CHM to replace the 1620 core stack with semiconductor memory. Guess
that never happened.
--Chuck