Article View: sci.electronics
Article #5681Re: help with choke color code
From: Bob Myers
Date: Wed, 15 Aug 1990 19:14
Date: Wed, 15 Aug 1990 19:14
25 lines
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1454 bytes
>green
>yellow
>red
>gold
>gold
>
>On my schemetic diagram it was labeled as 5.4 mH, but on the parts list
>it was 5.4 uH. And I don't know what the first gold color means.
>Thanks in advance.
As you've no doubt noticed, the first three match the good ol' resistor
color code (green = 5, yellow = 4, etc.). Given that red = 2 in this
code, I'd wager that the value given is in uH - which means it's a 5.4 mH
part (5400 uH = 5.4 mH). As to the two golds, one is almost certainly
tolerance - probably +/- 5% - while the other is anybody's guess at this
point (Q?).
One other clue - unless it's a little air-core inductor, it's very UNLIKELY
to have a value as low as 5.4 uH. On the other hand, 5.4 mH is a very
reasonable value for a small iron or ferrite-core coil.
Bob Myers KC0EW HP Graphics Tech. Div.| Opinions expressed here are not
Ft. Collins, Colorado | those of my employer or any other
myers@fc.hp.com | sentient life-form on this planet.
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!wuarchive!zaphod.mps.ohio-state.edu!sdd.hp.com!ucsd!ucbvax!hplabs!hpfcso!hpfcdj!myers From: myers@hpfcdj.HP.COM (Bob Myers) Newsgroups: sci.electronics Subject: Re: help with choke color code Message-ID: <17660087@hpfcdj.HP.COM> Date: 15 Aug 90 19:14:20 GMT References: <3749@umbc3.UMBC.EDU> Organization: Hewlett Packard -- Fort Collins, CO Lines: 25