3v homebrew power supply

Discussion in 'General Electronics Chat' started by aac9876, Dec 31, 2009.

  1. aac9876

    Thread Starter Active Member

    Dec 9, 2006
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    you know those little plastic cases that hold 2 AA batteries in series and have a red and black lead.... they are used in little electronics projects....where can you get them online??
     
  2. Boo

    Member

    Oct 27, 2009
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  3. VoodooMojo

    Active Member

    Nov 28, 2009
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    i am no novice to home brewing, but I am curious what the 3 volt power supply is being used for?
    timer?
    temperature?
     
  4. aac9876

    Thread Starter Active Member

    Dec 9, 2006
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    LMT 36 temp
     
  5. VoodooMojo

    Active Member

    Nov 28, 2009
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    ok, gotcha

    thanks
     
  6. SgtWookie

    Expert

    Jul 17, 2007
    22,182
    1,728
    If you order from Futurlec, expect a delay of a month or more before your parts arrive. Communicating with employees of Futurlec was difficult for me, as their primary language is not English.

    Your local Radio Shack should stock battery holders of various configurations. They won't be cheap, but you can get them quickly. You can also order them from the Radio Shack site.

    You can also order from Digikey.com, Mouser.com, Jameco.com, Electronic Goldmine, and many other suppliers that are located in the USA.
     
  7. aac9876

    Thread Starter Active Member

    Dec 9, 2006
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    I got it from US only site.... 35 cents a piece was more for the shipping stupidly was using this to measure woodstove pipe temps
    160 to 240 F range
     
  8. SgtWookie

    Expert

    Jul 17, 2007
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    Well, you'll get in trouble pretty quickly trying to use an LMT36 for measuring woodstove pipe temperatures. You'll really need a thermocouple for such high temps.
     
  9. aac9876

    Thread Starter Active Member

    Dec 9, 2006
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    wrong these are for 1 inch away from insulated double wall pipe....average temps
    are 160F-200F.. 200 would be extreme... inside pipe is way different.
     
  10. Wendy

    Moderator

    Mar 24, 2008
    20,766
    2,536
    Radio Shack also has them.
     
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