[SEL] My 2 cents worth

[Alan]

That is okay, Ed.
I also mave a huge tractor battery.
I don't have a tractor though.
Alan in Michigan
 
PS Last I knew Dave had a tractor though.

--- On Sat, 2/20/10, Ed Stoller <edstoller at earthlink.net> wrote:


From: Ed Stoller <edstoller at earthlink.net>
Subject: Re: [SEL] My 2 cents worth
To: "The SEL email discussion list" <sel at lists.stationary-engine.com>
Date: Saturday, February 20, 2010, 9:24 PM


Eldon,

I should have given you the link;   http://www.allegromicro.com/en/  .

I realize that the Zener is a pig on power, but I would use one of the 
tractor batteries I keep in the shop. ( Oops, I used the T word and am 
likely to set Dave off again.)

I have several UGN 3503UA's  if you need one.

Ed Stoller
New Fairfield, CT
http://home.earthlink.net/~edstoller/
----- Original Message ----- 
From: "Elden DuRand" <edurand at mchsi.com>
To: "The SEL email discussion list" <sel at lists.stationary-engine.com>
Sent: Saturday, February 20, 2010 10:50 AM
Subject: Re: [SEL] My 2 cents worth


> Ed:
>
> Recently, I updated my Magnet Tester page.  The version I built a few 
> years ago uses a 78L05 three terminal voltage regulator to allow a stable 
> supply voltage to the Hall circuit.  I also made a simple circuit to test 
> the battery using the meter on the tester.  Any reading over half scale 
> means the battery is still good.
>
> I wouldn't suggest using a Zener diode as a shunt regulator because they 
> are current hogs and are very temperature sensitive.
>
> Thanks for the part number.  When I get a chance, I'll see if they're 
> still available.
>
> Take care - Elden
> http://www.oldengine.org/members/durand
>
>> -----Original Message-----
>> From: sel-bounces at lists.stationary-engine.com
>> [mailto:sel-bounces at lists.stationary-engine.com]On
>>  Behalf Of Ed Stoller
>> Sent: Friday, February 19, 2010 08:02 PM
>> To: The SEL email discussion list
>> Subject: Re: [SEL] My 2 cents worth
>>
>>
>> I have a calibrated sensor ( A3516LUA) made by
>> Allegro Micro Systems and
>> distributed by Newark, I think I special ordered
>> it. It has been a while;
>> the Calibration table is dated 1997. It is too
>> early to know if I am going
>> to Portland, Ind, but it would be easy to bring.
>>
>> I am not satisfied with the 9 Volt battery source
>> as I have to check to see
>> if the battery is going dead. I would like to use
>> a 12 Volt battery and
>> Zener diode to substitute for it.
>>
>> Ed Stoller
>> New Fairfield, CT
>> http://home.earthlink.net/~edstoller/
>
>
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