Re: Beige Box
A former colleague and old friend of mine loves to relate a war-story from his time as a 2nd-level field service engineer for a large computer company back in the early 80s. I relay it now; any inaccuracies are probably mine, and I apologise in advance.
The company had supplied some 386 - possibly, Multibus - based server systems to a customer near Oxford who ran their own small-scale nuclear pile for research purposes (well, that narrows it down a bit doesn't it? Rhymes with "tarwell"...).
The customer complaint was that every evening, regular as clockwork, these new systems would crash.
After weeks of back-and-forth, with the first-level engineer replacing PSU after PSU to no avail, my friend was called in to investigate. He signed into the site late in the afternoon, and watched the systems.
Power to the campus was provided by the aforementioned nuclear pile. On one wall of the office, there was a 7-segment readout that showed the voltage output being supplied to the building - 240V, or thereabouts within that range.
5 o'clock came and went. All the servers were still running happily.
The secretary switched off her electric typewriter and 5-bar electric fire. Other workers in the building switched off their bench supplies and work lights and other accessories.
As this happened, my friend watched as the voltage readout slowly ticked upwards... 245... 250...260...300...
When it hit around 320V, the server keeled over with an unpleasant sound.
Yes, the nuclear pile had insufficient limiting on its output; without a load being present, it ran higher and higher, a shortcoming that until then had gone unnoticed!
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