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Thread: Galvo scanner history

  1. #11
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    Yes Steve those are the ones.

  2. #12
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    Is the type G100 and G120 from 1970 to 76?
    Quote Originally Posted by mixedgas View Post
    Take all the GSI products, stamp 1970 to 1976 on them. Done.

    Steve
    Last edited by whiteg; 10-16-2014 at 11:28.

  3. #13
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    The General Scanning G100PD were the first closed loop moving iron galvos I remember until the late '70's or early '80's when the G120PD appeared. I'm not sure what the differences were as far as specs. They looked and performed about the same as I recall. I'm sure someone with a better memory knows the answer. That was a LOT of brain cells ago.

  4. #14
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    G120 is a improved G100. First out were the G100 and G300. These were quickly superseded by the improved G120 and the G310, 320, G330 P = position detector, you can/could buy these in both open and closed loop. D I need to look up and T means thermal blanket and thermistor fitted.

    The second two digits are generally the mechanical scan angle, I have a table of that some where.

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  5. #15
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    There was also a G124PD

    No idea what year they were made, when I got them and spoke the GS they had no idea they even made them

    Click image for larger version. 

Name:	GS124PD+3.JPG 
Views:	27 
Size:	50.9 KB 
ID:	45064

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  6. #16
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    I seem to recall seeing the G124PD's being used in the Lovelight projector. I think the longer torsion spring allowed wider scanning angle.
    http://lasershows.home.netcom.com/theshow.htm
    Correction - it turns out they used G138PD's - they looked like your photo of the G124PD.
    http://lasershows.home.netcom.com/special.htm
    Last edited by Photonbeam; 10-16-2014 at 23:02.

  7. #17
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    Great informations!
    Quote Originally Posted by Photonbeam View Post
    I seem to recall seeing the G124PD's being used in the Lovelight projector. I think the longer torsion spring allowed wider scanning angle.
    http://lasershows.home.netcom.com/theshow.htm
    Correction - it turns out they used G138PD's - they looked like your photo of the G124PD.
    http://lasershows.home.netcom.com/special.htm

  8. #18
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    Intresting, but maybe 1973?
    Quote Originally Posted by loopee View Post
    There was also a G124PD

    No idea what year they were made, when I got them and spoke the GS they had no idea they even made them

    Click image for larger version. 

Name:	GS124PD+3.JPG 
Views:	27 
Size:	50.9 KB 
ID:	45064

    mixedgas has them now

  9. #19
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    I read that the "D" was to mean that it had a type D connector, D15

  10. #20
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    Lightbulb

    Quote Originally Posted by absolom7691 View Post
    ...Laserworks..
    Good call! Those were actually pretty-good scanners, quite tough, and fairly-precise...They're long 'OOB', now, but they also had a super-wide (..for the time..) angle-scanner, used for 'Q-Beams' and Mobo's, and, some other higher-end, more-precision ones.. https://web.archive.org/web/20080508...s.us/scanners/ ..'Date wise', the first interactions I had with them were around 1991-92, and they already had the SS350's well-established, so.. I'd guess, Circa 1987-1988, at least..

    ...and they had a *really* awesome little 'all-in-one' mini lissajous-projector, the 'MicroScan', iirc, that would fit inside of a VCR-tape's footprint.. I had one in like 1992, and.. sold it like a fool.. Thing was really well-designed / made, and quite the blast, even-if it was 'only' a lissajous-pj..

    ..cool list..
    j
    ....and armed only with his trusty 21 Zorgawatt KTiOPO4...

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