Date: Mon, 4 Dec 1995 14:06:35 +0000 () From: Michael Smith <msmith@atrad.adelaide.edu.au> To: dgy@rtd.com (Don Yuniskis) Cc: julian@ref.tfs.com, freebsd-hackers@freefall.freebsd.org Subject: Re: No Thumbs??? (lack of concensus) Message-ID: <199512041406.OAA26318@genesis.atrad.adelaide.edu.au> In-Reply-To: <199512012334.QAA14245@seagull.rtd.com> from "Don Yuniskis" at Dec 1, 95 04:34:49 pm
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Don Yuniskis stands accused of saying: > Actually: > 2.5A @ 5VDC (steady state) > 0.8A @ 12VDC (steady state) Worst-case steady state, not idle. Big difference. > And: > 3.0A @ 5VDC (max) > 1.5A @ 12VDC (max) Powerup or tape start. > I'm not disagreeing. Rather, I'm just noting published specs on drives > and trying to infer their thermal characteristics in a manner comparable > to other equipment I have in similar enclosures. 'Cuda claims to be about > 13W. Some of the Hawks appear to be ~9W. The MC1991 claims to be 30W! > (comparing apples and orangatans!) Bear in mind that the 1991 has _much_ more surface area than the 'cuda, so it can dissipate more power for the same dT. -- ]] Mike Smith, Software Engineer msmith@atrad.adelaide.edu.au [[ ]] Genesis Software genesis@atrad.adelaide.edu.au [[ ]] High-speed data acquisition and (GSM mobile) 041-122-496 [[ ]] realtime instrument control (ph/fax) +61-8-267-3039 [[ ]] "Who does BSD?" "We do Chucky, we do." [[
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