Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!ucsd!usc!samsung!uunet!crdgw1!crdos1!davidsen From: davidsen@crdos1.crd.ge.COM (Wm E Davidsen Jr) Newsgroups: comp.arch Subject: Re: ENIAC Query Message-ID: <1615@crdos1.crd.ge.COM> Date: 14 Nov 89 21:16:40 GMT References: <38193@lll-winken.LLNL.GOV> <405@gvlv2.GVL.Unisys.COM> Reply-To: davidsen@crdos1.UUCP (bill davidsen) Distribution: usa Organization: GE Corp R&D Center Lines: 28 In article <405@gvlv2.GVL.Unisys.COM>, kleonard@gvlv2.GVL.Unisys.COM (Ken Leonard) writes: | I dimly recall ham transmitters that used a couple of these | as final amplifier--at a plate power level of a couple hundred watts. The part about transmitters sounds right, that number rings a bell. | Do I remember correctly, or do I have an advanced case of cranial decrepitude? Are these mutually exclusive? My kids say I remember correctly, but the wrong things. | What was ENIAC doing to need _that_much_ power in one stage of logic? How about driving busses with VERY high fanouts? | Or did the builders include these just so they would have a place to fry | their eggs in the morning? Assuming that I'm right about the fanout... based on nothing but an assumption that the builders DID have a reason, with the failure rates they were getting, would one tube driving 1024 other circuits make more sense than having more tubes and less fanout? They surely weren't trying to avoid a gate delay at the speeds they ran. -- bill davidsen (davidsen@crdos1.crd.GE.COM -or- uunet!crdgw1!crdos1!davidsen) "The world is filled with fools. They blindly follow their so-called 'reason' in the face of the church and common sense. Any fool can see that the world is flat!" - anon