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4558RE: [ccd-newastro] Re: ST7E and G-11

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  • Ron Wodaski
    Dec 1, 2001
    • 0 Attachment
      The SBIG relay box will do the job. You must have it or something similar to
      use the SBIG cameras with the G-11. And always remember to put both devices
      on different power circuits when working off batteries! I recommend one
      battery for the mount, and one for everything else. Optimal is at least
      three batteries: mount, camera, and the rest of your stuff.

      Ron Wodaski
      The New CCD Astronomy
      http://www.newastro.com

      -----Original Message-----
      From: Jim Rucker [mailto:yvonnejim@...]
      Sent: Saturday, December 01, 2001 7:38 AM
      To: ccd-newastro@yahoogroups.com
      Subject: [ccd-newastro] Re: ST7E and G-11


      --- In ccd-newastro@y..., "John Smith" <johnzonie@e...> wrote:
      > Hi Jim,
      >
      > Depending on power systems and grounding, you may run into a problem
      > with guiding a G-11 with the ST-7E. Most often, an isolation circuit
      > is needed. I built the circuit described at
      >
      > http://www.mindspring.com/~dlakey/Optical-Isolation-Circuit.html
      >
      > and had good luck using it with my ST-8E. Alternatively, you would
      > need to purchase SBIG's relay box.
      >
      > Some folks have burned out a chip or two in the G-11 due to
      > inconsistent grounding. Losmandy gets a fortune for the board,
      > although if you are handy, you can change out the chup yourself.
      >
      > Best bet - use an isolation circuit!
      >
      > HTH,


      HTH

      Thanks, will the relay box from SBIG be as good as an isolation circuit,
      or is the relay box the same thing.

      Jim



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