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> From The Planetarium Attic, A half century of history
bjsullivan
post Jan 23 2008, 05:36 PM
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Maybe Ron can remember what this was used for!
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bjsullivan
post Jan 23 2008, 06:38 PM
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I recently took a field trip to a major university to photograph a rare GOTO instrument. In the foreground is the exact same hand-crank orrery that was featured in the black and white sci-fi classic "20 Million Miles To Earth". I just saw this movie a couple of weeks ago on TCM (Turner Classic Movies), and sure enough, this orrery appears in the first 10 or 15 minutes of the film. The professor prefers that I not disclose the actual location of this artifact but I can share it with you here!
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mrgare5050
post Jan 24 2008, 04:52 AM
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that first one looks like the switchboard from mayberry ...

the orerry is great, but im also looking at the weird concentric ribbing in that dome! gare
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mrgare5050
post Jan 24 2008, 04:54 AM
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ok a couple more of these and we'll have to start a

planetarium backroom hall of fame.
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Ron Walker
post Jan 24 2008, 04:00 PM
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QUOTE(bjsullivan @ Jan 23 2008, 04:36 PM) *
Maybe Ron can remember what this was used for!


It's a patchbay for all of the auxiliary equipment that is in the planetarium. It makes it easy to switch from one projector or effect to another depending on the show they are giving. In other words, they may have controls on the main console to operate only five effect projectors at a time. However, they may have fifty or so auxiliary projectors for the various shows they give during a year. With this patch bay it is easy to assign any one of the many special effect projectors to any one of the five controllers for that given show.
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Ron Walker
post Jan 24 2008, 04:03 PM
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QUOTE(mrgare5050 @ Jan 24 2008, 03:52 AM) *
that first one looks like the switchboard from mayberry ...

the orerry is great, but im also looking at the weird concentric ribbing in that dome! gare


The weird ribbing is just an artifact of the compression used to post the photo.
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mrgare5050
post Jan 6 2010, 05:53 AM
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QUOTE(Ron Walker @ Dec 7 2007, 05:07 PM) *
The very narrow catwalk around the dome was constructed by a very energetic student many years ago. Carpentry was not his forte.

[attachment=1232:cat_walk.JPG]

As to weather this stuff is "good junk" or can be made functional again, I believe there is a fair supply of both. As far as "good junk", there is a supple of lenses, motors, and projectors that would last a lifetime of experimenting. Many are interesting enough to require some TLC just to see what they do and how well they do it. Something to do on those long rainy winter days when there is nothing else to do. One must temper the immediate temptation to discard any of these projectors as they are part of the planetarium history. If we are true to our intent of making any attempt at a planetarium museum, then we must at least try and get them back into working order.



Whatever happened to these 'brute force' projectors? Ive lately been enjoyinig these pictures . - behind the dome pictures seem to be very rare. g
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Ron Walker
post Jan 6 2010, 02:39 PM
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QUOTE(mrgare5050 @ Jan 6 2010, 04:53 AM) *
Whatever happened to these 'brute force' projectors? Ive lately been enjoyinig these pictures . - behind the dome pictures seem to be very rare. g


Yeah, I was going to make this a regular posting as I have a bunch of these projectors. I just don't have the time to do everything I want to do.
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Ron Walker
post Feb 4 2010, 03:09 PM
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Just rebuilt a lightning flash projector and it works great. More info soon.
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