Path: utzoo!attcan!uunet!samsung!sdd.hp.com!hp-pcd!hplsla!tomb From: tomb@hplsla.HP.COM (Tom Bruhns) Newsgroups: sci.electronics Subject: Re: A conundrum about the AWG (wire gauge) table Message-ID: <5170092@hplsla.HP.COM> Date: 14 Sep 90 01:31:57 GMT References: <2588@ryn.esg.dec.com> Organization: HP Lake Stevens, WA Lines: 12 >Just to add more fuel to the fire, if you use decibels (defined as 10log(x), >where the log is base 10 and the x is a ratio) then a ratio of 2 is 3.01dB. >Decibels are a common engineering unit (at least in Electrical Engineering), so >perhaps the gauges sizes are based on this. ...but _if_ a ratio of 2 in x-section was a 3.01 change in gauge number, then a ratio of 10 in x-section would be exactly a 10 gauge number change. ..."Which it ain't." So who has looked this up in an engineering/ technology history? (Besides, I _suspect_ wire gauges were settling down before common use of dB.)