Purple-ish small lamps in contract printers of yesterday...

Discussion in 'Contact Printing' started by Clueless, Nov 27, 2005.

  1. Clueless

    Clueless Member

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    In the 1940's units such as the Morse had many on/off switches; white lights, and even red lights; but what were the special qualities of the small purple-ish lamps that are now hard to come by? I understand that contract printing was common, that dodging and burning-in was possible via which lamps were on. TIA
     
  2. Jim Noel

    Jim Noel Member

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    I trust you have not been looking directly at those little bulbs as if they are what I think they are, they produce ultra-violet. In fact they produce so much UV they also make Ozone which you can smell.

    When you look at them, un-powered, do they have a little flat disc near the top? If so they are useful, but do produce UV.

    If I can pull the name out of my rusty trap memory, I will send it to you.
    JIm