Beseler Dual Dichro 4500 question

Discussion in 'Darkroom Developing and Printing' started by Mark Fohl, Oct 29, 2004.

  1. Mark Fohl

    Mark Fohl Guest

    Hello Folks, a friend gave me a 4x5 Dual Dichro head, and I want to sell it
    on e-bay, as I don't do any color work. I thought I should check it before
    I sold it, so I plugged it in and started fooling around with it. I think I
    found a problem, but I'm not sure what to make of it, so I am seeking the
    wisdom of the net.

    I plugged both power cords into the wall, so the head was both on and
    enabled for exposure. I had the unit on its side, so I could adjust the
    knobs and watch the light output. I started to turn all three knobs,
    yellow, magenta, and cyan, and I could see the color of the light changing.
    When I turned the yellow and cyan knobs, the output numbers changed
    accordingly: low numbers starting out, higher numbers as I turn the knob
    clockwise. But I couldn't see the magenta number changing; the light output
    changed, but not the number value. When I changed the yellow and cyan
    lights, I could see small changes in the magenta number.

    Any idea what might cause this? And how I can fix it? It's probably
    essential that the number reflect the actual value of the output.

    Any help would be appreciated.


    -- Mark
    Mark Fohl, Oct 29, 2004
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  2. Mark Fohl

    RWatson767 Guest

    Any idea what might cause this? And how I can fix it?

    Sounds like a mechanical problem with the magenta adjustment mechanism. The
    fix is to determine the problem and correct it. Too much to discuss here. Find
    a repairman who will handle this. Where is the head now?

    Bob AZ
    RWatson767, Oct 30, 2004
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  3. Mark Fohl

    Mike King Guest

    If you plan to sell it on eBay, I don't know how much you want to spend on
    repairs, might be best to sell it "as is" to someone that knows how to fix
    Mike King, Oct 31, 2004
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