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Thread: Coherent I90 Argon Laser, TXFormer and PSU with Remote box

  1. #1
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    Default Coherent I90 Argon Laser, TXFormer and PSU with Remote box

    Coherent I90 Argon Laser, TXFormer and PSU with Remote box. Requires 32A 3phase supply and water supply to run. Slight cathode filament sag but runs around 1W. Needs a good long run with the head inverted.
    Offers but may be persuaded to give it away to someone who will 'work' it
    --------------------
    My Brain urt's!

    Continuously in Awe! of (H)Al, the Photonlexicon Font of Complete Knowledge - The (H)Al'PL Database of complete puss that no one needs to know or ever trusts as he ain't really got a Scooby doo about now't!

  2. #2
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    If memory serves, tungsten has a "butter point" in the heat-up curve where it is most likely to sag. If you could invert the tube and pulse the cathode heater to keep the filament at that "butter point" temperature, you might be able to reverse the sag.

    Steve Roberts probably has a procedure for this...

    Adam

  3. #3
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    Ooh, sounds interesting; I would make an offer, but my car needs a new engine so I'll have to pass

  4. #4
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    Quote Originally Posted by buffo View Post
    Steve Roberts probably has a procedure for this...
    Adam


    Probably involves a large car battery and a lot of balls!
    Cheers

  5. #5
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    This is still available if anyone is interested.
    --------------------
    My Brain urt's!

    Continuously in Awe! of (H)Al, the Photonlexicon Font of Complete Knowledge - The (H)Al'PL Database of complete puss that no one needs to know or ever trusts as he ain't really got a Scooby doo about now't!

  6. #6
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    Oh, I'm definitely interested but short on funds
    I'd be happy to give it a loving home, feed it only the best electrons and give it only the finest water to drink

  7. #7
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    100 and its yours.

  8. #8
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    Mar 2015
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    PM coming your way

  9. #9
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    Now sold. Thanks

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