Bulb blowded up!

Discussion in 'Darkroom Equipment' started by Jarvman, Nov 1, 2007.

  1. Jarvman

    Jarvman Member

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    The new bulb I payed £18 for just blew up the first time printing with it. It's for a focomat V35 with heiland Splitgrade System. Any ideas what could be wrong? I think something is up with my enlarger.
     
  2. Jim Noel

    Jim Noel Member

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    Sounds like something is wrong with the enlarger circuit allowing too much voltage to the lamp.
     
  3. David A. Goldfarb

    David A. Goldfarb Moderator Staff Member Moderator

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    Sounds messy. Is it a 120V bulb, seeing as you're in a 240V country?
     
  4. Dave Miller

    Dave Miller Member

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    You paid how much!:surprised: What's so special about this lamp?
    Either a faulty lamp, not uncommon, send it back and demand another, or possibly your transformer is faulty and giving the lamp a higher voltage than it likes, could be why the pevious lamp went. Check the output voltage with a voltmeter, or get an electrical shop to do it for you.
     
  5. Jarvman

    Jarvman Member

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    Nothing special about it. It's just the only bulb the Focomat takes. It says 12V 75W

    It's strange. I had this secondhand about a year ago and it hasn't given me problems before.
     
  6. Dave Miller

    Dave Miller Member

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    In that case it's a very special price for an not very special lamp.:sad: But I understand that they can be difficult to source - at a sencible price.
    Anyway I hope you get to the bottom of the problem quickly.
     
  7. pentaxuser

    pentaxuser Subscriber

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    I'd try Technical Lamps Tel: 0208 89796652. Its website is www.techlamps.co.uk. I got two lamps for my Durst M605 for about this price.

    Nova also used to sell lamps. I bought my first replacement there and it went after a few hours. On reporting it Nova replaced it there and then. Of course it's worth checking first that there isn't a reason for it blowing

    pentaxuser
     
  8. waynecrider

    waynecrider Member

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    Sounds to me like you have a shorted transformer circuit. Got a electrical meter to check?
     
  9. Ronald Moravec

    Ronald Moravec Member

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    Make sure you have the enlarger set for the correct input voltage, column base on the back side.
     
  10. haris

    haris Guest

    Do you HAVE TRANSFORMER at all :smile:
     
  11. John Koehrer

    John Koehrer Subscriber

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    With a V35 the xformer's built into the base.