Article View: comp.arch
Article #2988Re: ENIAC Query
From: Mike Butts
Date: Tue, 14 Nov 1989 02:04
Date: Tue, 14 Nov 1989 02:04
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1657 bytes
From article <405@gvlv2.GVL.Unisys.COM>, by kleonard@gvlv2.GVL.Unisys.COM (Ken Leonard):
> In article <Nov.11.23.03.48.1989.3337@porthos.rutgers.edu> webber@porthos.rutgers.edu (Bob Webber) writes:
> * [re types of vacuum tubes used in ENIAC]
> * 4,200 6L6 Beam Power
> * 1,300 6V6 Beam Power
> well, for sure, neither if these is what one would call "low power consumption"
> but then...
> * 350 807 (Enlarged 6L6)
> I dimly recall ham transmitters that used a couple of these
> as final amplifier--at a plate power level of a couple hundred watts.
> Do I remember correctly, or do I have an advanced case of cranial decrepitude?
> What was ENIAC doing to need _that_much_ power in one stage of logic?
> Or did the builders include these just so they would have a place to fry
> their eggs in the morning?
Clock drivers, I'll bet. A professor of mine worked on a 50's
Univac machine with 807 clock drivers. ZZZAP!!!
--
Michael Butts, Research Engineer KC7IT 503-626-1302
Mentor Graphics Corp., 8500 SW Creekside Place, Beaverton, OR 97005
!{sequent,tessi,apollo}!mntgfx!mbutts mbutts@pdx.MENTOR.COM
Opinions are my own, not necessarily those of Mentor Graphics Corp.
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Path: arc1-ca.pugleaf.net!utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!cs.utexas.edu!wuarchive!wugate!uunet!zephyr.ens.tek.com!tektronix!sequent!mntgfx!mbutts From: mbutts@mentor.com (Mike Butts) Newsgroups: comp.arch Subject: Re: ENIAC Query Message-ID: <1989Nov14.020457.416@mentor.com> Date: 14 Nov 89 02:04:57 GMT References: <405@gvlv2.GVL.Unisys.COM> Distribution: usa Organization: engr Lines: 22