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Date: Mon, 28 Feb 2000 12:51:49 -0500
Subject: Re: O2 analyzer circuit board change.
From: Jim Cobb <cobber@ma*.ci*.co*>
To: "Robert G. Rowlette" <robgrow@on*.ne*>, Chris Elmore <ElmoreC@gw*.sc*.ed*>
CC: <techdiver@aquanaut.com>
Thanks, Bob, I have updated the web site to reflect this information.

  Jim
 -------------------------------------------------------------------
 Learn About Trimix at http://www.cisatlantic.com/trimix/

> From: "Robert G. Rowlette" <robgrow@on*.ne*>
> Date:  Thu, 24 Feb 2000 12:43:19 -0500
> To: "Chris Elmore" <ElmoreC@gw*.sc*.ed*>
> Cc: <techdiver@aquanaut.com>
> Subject: Re: O2 analyzer circuit board change.
> 
> You evidently have a PM128A, not the orginal PM128 panel mount LCD
> millivolt meter that is specified in the article on Jim Cobb's web site.
> The PM128A uses surface mount devices (SMDs) which are extemely minatuture
> and really not easily changed. As recently as last November, I purchased an
> original PM128 - not A - from Parts Express in Dayton, OH. Check the PE web
> site @ <http://www.partsexpress.com/>; they may still have some non-A
> PM128s left. Also, if I'm not mistaken, the newest version of Vance
> Harlow's "The Oxygen Hacker's Companion" deals with this issue.
> 
> Good luck.
> 
> Bob
> 
> At 11:48 AM 2/24/2000 -0500, you wrote:
>> The plans on Jim Cobb's website
> <http://www.cisatlantic.com/trimix/Analyzer/analyzer.htm>  for making an O2
> analyzer call for a PM128 circuit board. A new circuit board has replaced
> the one illustrated on the website but the layout of the new one is
> completely different than the older one. I tried to contact Jim Owens (who
> wrote the article) but my email bounced. If anyone knows how to reach him
> or configure the new CB I'd really like to hear from them. Until this gets
> figured out I'd caution people from buying the PM128 to make an O2 analyzer.
>> Thanks,
>> C.
>> 
>> 
>> Chris Elmore
>> College of Liberal Arts
>> Univ. of SC
>> (803) 777-1534 office
>> (803) 348-3055 mobile
>> Please use this address for all email: chris@sc*.ed*
>> 
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> 
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