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  1. #11
    Lee L's Avatar
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    Quote Originally Posted by Pinholemaster View Post
    But I hear perfectly fine. Grin.
    Could you please repeat that? I didn't have my light meter turned up.

    Lee

  2. #12

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    Sep 2006
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    Thanks Lee! I'll try getting them off tomorrow. Then I can give my real PX 625 batteries a rest.

  3. #13
    JRieke's Avatar
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    Hate to open up an old thread but since I had this same issue and found my own work around I thought I would post it. I found people on the net saying they had good luck with 675 hearing aid batteries so I picked up two packs from CVS on sale, buy one get one free. Since the diameter of the new batteries was much smaller than the original I simply cut two pieces of heavy paper one about 3/16 of an inch and another that was about 3/8 I rolled the smaller piece tight, dropped it into the compartment then rolled the larger and dropped it inside the first. A little playing with it got a good snug fit. I enlarged the hole on the back of the battery cover to allow better air circulation the followed the instructions from http://www.graphic-fusion.com/lunapro.htm to recalibrate it to the higher voltage.

    I hope this helps anyone else looking for a good, cheap, easy way to keep their light meter functioning.

    Thanks

    Jeremiah

  4. #14
    RobertV's Avatar
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    http://www.butkus.org/chinon/batt-adapt-us.pdf

    But from Gossen you can order the adapter + 2x Silveroxide 1,55V batteries which makes again 2x 1,35V again.

  5. #15

    Join Date
    Jun 2003
    Location
    Nova Scotia
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    921
    As an interesting aside. The 625 batteries in my Luna Pro were put in in 1973 before I moved to Nova Scotia. They have never leaked and still go to the check mark.
    Newer batteries in other equipment are long since dead.
    I have been told that the life of these batteries depended on the purity of the raw materials received by the manufacturer.
    Mark
    Mark Layne
    Nova Scotia
    and Barbados

  6. #16

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    Oct 2007
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    675 hearing aid batteries are 1.4v and should not require calibration.
    You can get 8 675 Walgreen's brand for $7.99 and with two #9 rubber o-rings($2) to fit around the 675, you are in business. I just put an older Luna Pro(says Germany(West)) back in service with this method and the meter checks out perfectly.-Dick

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