8" hard disk storage for unibus 11?

Mike Ross tmfdmike at gmail.com
Thu Nov 26 03:08:19 CST 2015

Many moons ago I had a small fleet of pdp-11/04s, pulled out of a
research synchrotron.

(well, not *literally* out of the synchrotron, they probably wouldn't
work if they had been...)

They all had disk subsystems made by a company called Baydel; a 19"
rack module, half-height like an 11/04, containing an 8" hard disk and
power supply, hooked up to a quad-size Unibus card. Emulated a bunch
of RK05s. Can't recall the nature of the interface between the card
and the drive.

Over the years I appear to have carelessly and unintentionally traded
or given away ALL the bloody things! Anyone else have one, had one, or
know someone who might? I've Googled and there's a deafening silence,
apart from me asking the same question on Usenet ten years ago!


'No greater love hath a man than he lay down his life for his brother.
Not for millions, not for glory, not for fame.
For one person, in the dark, where no one will ever know or see.'

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