From mboxrd@z Thu Jan 1 00:00:00 1970 From: dave@horsfall.org (Dave Horsfall) Date: Thu, 5 Oct 2006 22:15:54 +1000 (EST) Subject: [pups] thrust meter? In-Reply-To: <452424F9.28243.1AB56C7E@brian.quarterbyte.com> References: <452424F9.28243.1AB56C7E@brian.quarterbyte.com> Message-ID: On Wed, 4 Oct 2006, Brian Knittel wrote: > The thrust meter project -- was that an analog meter that displayed % > CPU utilization? I remember that Tom Ferrin had one mounted in the > middle of a DEC panel filler on the 11/70 at the Computer Graphics Lab > at UCSF. It was really delightful having this analog meter bouncing up > and down as people worked away. I believe so... (Dave leans over to dig out article.) OK, page 27 of AUUG Vol 2 No 5 (Jun/Jul 1980). It integrated the BUS BUSY signal over a suitable time constant (and my electronics knowledge is a bit too rusty to figure out Tc, but with a 10uF tantalum capacitor I imagine it would be a few seconds). The credits are: Designed originally by Pete Madams (Essex), modified by J Feenstra (Nijmegen), and this drawing executed by Paul Griffith (Essex). -- Dave