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Thread: Enlarger Bulb

  1. #1

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    Enlarger Bulb

    Hello all,

    I have a Unicolor enlarger. I've heard it's the same as a Vivitar E34. Does anyone know where I can find the bulb for this enlarger? It's not burned out yet, but I have no idea how much use the previous owner used the bulb. I have a suspicion that I've used it more in the past two months than he did in the past 10 years, but I can't be sure. It's always nice to have a backup.

    Thanks

  2. #2
    Gary Holliday's Avatar
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    OK, well I have done some more searching on the internet and apparently the previous owner had the wrong bulb in the enlarger. It has a 100 watt bulb, and the enlarger is supposed to use a 75watt bulb. I have also seen where people use standard, $1 a pack bulbs from Wal-Mart in their enlarger. But, just because the mount is the same doesn't mean you should right? What can I expect if I use a standard bulb in the enlarger?

    Thanks for the link, Gary.

  4. #4

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    You can likely expect uneven illumination. And perhaps a ghostly "Westinghouse 100W" in your print from the lettering, depending on the bulb's orientation.
    True screw-base enlarger bulbs have a thicker coating than household bulbs that evens out the light from the filiment, and no lettering on the glass.

  5. #5
    Gary Holliday's Avatar
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    Using household bulbs has been brought up a few times when the Philips factory stopped producing enlarger bulbs. I tried and failed, uneven illumination was the main problem, but the correct bulbs can have this problem too. If you like the enlarger, pick up a few bulbs in case you have problems in the future.

  6. #6

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    I had the same issue when I used a standard bulb -- uneven illumination and lettering from the bulb appearing on the print.

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    Try wholesale electric shop ask them to order 6 bulbs by part number price should be 50% less than photo store.



 

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