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Date: Fri, 14 Aug 2020 20:29:56 -0700
From: Larry McVoy <lm@mcvoy.com>
To: Dave Horsfall <dave@horsfall.org>
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Subject: Re: [TUHS] A/UX [was Linux is on-topic]
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On Sat, Aug 15, 2020 at 12:02:51PM +1000, Dave Horsfall wrote:
> On Fri, 14 Aug 2020, Rich wrote:
> 
> >On a vaguely related note, I found it amusing that there was a well known
> >hack for Cray's (or perhaps 6600's) which were misbehaving: put a
> >Tektronix scope probe on a test point that generally had one there during
> >final system checkout. The load (extremely mnimal by design) was just
> >enough to stabilize the system.
> 
> There was also the story about the major difference between a Cyber 72 and a
> Cyber 73 was just a timing capacitor...  Very expensive capacitor :-)

I've been there when Neil Lincoln toggled the boot strap.

https://en.wikipedia.org/wiki/ETA10