14 Aug
2012
14 Aug
'12
12:22 p.m.
On 13 Aug 2012, at 10:14 PM, mc68010 wrote:
Now days people often put on hearing protection before
for going into the racks.
In the 1970s we did as well; sound attenuating headsets even in a room with only a handful
of machines (three DG boxes, a HP2000, a HP3000, maybe a half a dozen disks). The A/C and
fans were the worst, although the switching power supplies in the Novas screamed pretty
badly (one could tell how hard the machine was working by pitch). I had more that a
couple of those headsets rupture their gel onto the side of my head.
I believe the worst noise I ever encountered was from CDC-badged tape drives which sounded
like banshees when rewinding.
--
Dr. Christian Kennedy
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