RE: standard component values

2007-03-14 Thread emc-p...@ieee.org
I'd like to thank all contributors to this thread. Little did I know that such a seemingly small topic it would turn into so lively a discussion, with so many responses. Regards, Peter L. Tarver, PE ptar...@ieee.org CONFIDENTIALITY This e-mail message and any attachments thereto, is intended o

Re: standard component values

2007-03-13 Thread emc-p...@ieee.org
In message , dated Tue, 13 Mar 2007, "Powell, Doug" writes: >Years ago, I even had a program for my HP-67 calculator that would take >a desired value and show me the nearest standard value. There is a small app at: http://www.miscel.dk/MiscEl/miscel.html which does a lot more than that. I'm

RE: standard component values

2007-03-13 Thread emc-p...@ieee.org
;; 'PSTC 1' Subject: RE: standard component values Quote: "These values were supposed to have been derived from the mathematical series of equally spacing values logarithmically for each decade." http://www.eng-tips.com/viewthread.cfm?qid=71035&page=5 Dave Cuthbert

RE: standard component values

2007-03-13 Thread emc-p...@ieee.org
http://www.pc-control.co.uk/resistor-eia.htm Regards, Chris From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of David Cuthbert Sent: 13 March 2007 15:38 To: 'Tarver, Peter'; 'PSTC 1' Subject: RE: standard component values Quote: "These values were supp

RE: standard component values

2007-03-13 Thread emc-p...@ieee.org
] On Behalf Of Barker, Neil Sent: 13 March 2007 15:34 To: 'Tarver, Peter'; PSTC 1 Subject: RE: standard component values Peter, My understanding is that each series, E12, E24, etc increments approximately according to the corresponding tolerance such that adjacent values approximately m

RE: standard component values

2007-03-13 Thread emc-p...@ieee.org
Peter, My understanding is that each series, E12, E24, etc increments approximately according to the corresponding tolerance such that adjacent values approximately meet at the upper tolerance of one value and the lower tolerance of the next greater value. This is rounded off to the nearest intege

RE: standard component values

2007-03-13 Thread emc-p...@ieee.org
Quote: "These values were supposed to have been derived from the mathematical series of equally spacing values logarithmically for each decade." http://www.eng-tips.com/viewthread.cfm?qid=71035&page=5 Dave Cuthbert Linear Technology From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On B