Re: SETI public: Hall Effect Device Needed - Help

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Thanks Don. As luck would have it I had another motor with a encoder on it. This one uses the three terminal Hall Effect devices and seems to work mechanically as well.

Comes from clean living...
  ----- Original Message -----
  From: Don Latham
  To: James Brown
  Sent: Tuesday, January 22, 2008 12:56 PM
  Subject: Re: SETI public: Hall Effect Device Needed - Help

  James: I got this far:
  http://www.interfacebus.com/Hall_Effect_Sensor_Manufacturers.html
  but did not have time to look further. The sensors from Allegro have amps built in, so you might be able to re[lace the whole circuit. Hall devices have two voltage and two current leads. You might not be able to find replacements for "raw" sensors since most of these devices now have built-in electronics. Hope this helps rather than confuses... :-)
  Don

    ----- Original Message -----
    From: James Brown
    To: public_at_setileague.org
    Sent: Tuesday, January 22, 2008 10:42 AM
    Subject: SETI public: Hall Effect Device Needed - Help

    I am in bad need of a four terminal Hall Effect device. I broke the one I was using on one of the antenna positioning motors and cannot seem to find a replacement. All the ones I can find are three terminal. Making it worse is that IC is not marked so I don't even know the manufacture.
    I have a picture of the other good one for comparison at:

    http://www.seti.net/html/SETINet/Engineering/Engineering.htm

    Has anyone worked with these little devices?

    Any help?

    James Brown (Jim_at_SETI.Net)
    W6KYP
    Argus Station: DM12jw
    www.SETI.Net

• Previous message: LARRY KLAES: "Re: SETI public: Interesting news item"
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