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Equipment Discussions >> Classic Telescopes

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tim53
Postmaster
*****

Reged: 12/17/04

Loc: Highland Park, CA
Re: Restoring my 8" f/6 Springfield new [Re: Jeff Phinney]
      #6042581 - 08/23/13 10:02 PM

Quote:

Dale Chestnut?!?!?!?! That name seems so very familiar to me, but I can't recall why.




He seemed to know Max Bray pretty well, too. And there was a GEM he and a friend designed that he had a 4" achromat OTA on (that he made the optics for himself). Had very porteresque conical axes.

But it really was spelled "chesnut" with only the one "t".

-Tim.


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DAVIDG
Post Laureate
*****

Reged: 12/02/04

Loc: Hockessin, De
Re: Restoring my 8" f/6 Springfield new [Re: tim53]
      #6045856 - 08/25/13 08:06 PM Attachment (15 downloads)

Quote:

Okay, so help me remember...

In the early 80s at RTMC, there was a guy there who was trying to sell a small newtonian - like a 3", that had a fixed eyepiece. I took one of his flyers home with me, but I haven't seen it in years so don't know whether I might have lost it.

It was interesting in that the OTA doubled as the polar axis, with the primary at the bottom, with a couple flats near the eyepiece feeding light to it. The first was outside the OTA and could be rotated in Dec. The second was on-axis and had a hole in it for the light cone to go through, and the eyepiece was at the north end of the OTA. It was very nice and compact, and sat on a table top, IIRC.

Anybody remember this scope?

-Tim.




Hi Tim,
I found your mystery scope in Telescope Making #20 from 1983. It was made Edward Pasko of Santa Maria CA. Here is a picture of the page. Holding the page open is one of the original slits from the Hale spectrohelioscope I'm restoring to be installed at Stellafane and an ash tray copy of the Palomar 200" mirror sold at Corning.

- Dave


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tim53
Postmaster
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Reged: 12/17/04

Loc: Highland Park, CA
Re: Restoring my 8" f/6 Springfield new [Re: DAVIDG]
      #6045916 - 08/25/13 08:38 PM

I think that's the one!

I used to have all the issues of TM until all my magazines were burned in our attic fire in 2001.

-Tim.


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tim53
Postmaster
*****

Reged: 12/17/04

Loc: Highland Park, CA
Re: Restoring my 8" f/6 Springfield new [Re: tim53]
      #6045990 - 08/25/13 09:11 PM

He patented it:

Ed Pasko's stationary eyepiece telescope

-Tim.


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Chuck Hards
Post Laureate
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Reged: 05/03/10

Loc: The Great Basin
Re: Restoring my 8" f/6 Springfield new [Re: DAVIDG]
      #6046176 - 08/25/13 11:21 PM

Quote:

Holding the page open is one of the original slits from the Hale spectrohelioscope I'm restoring to be installed at Stellafane and an ash tray copy of the Palomar 200" mirror sold at Corning.

- Dave




Wow Dave, that's only the second one of those 200-inch ashtray replicas I've ever seen. Here's mine:



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Chuck Hards
Post Laureate
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Reged: 05/03/10

Loc: The Great Basin
Re: Restoring my 8" f/6 Springfield new [Re: tim53]
      #6046267 - 08/26/13 12:32 AM

Quote:

He patented it:

Ed Pasko's stationary eyepiece telescope

-Tim.




It's just a Fundyscope with the optical axis aligned with the polar axis, and a Coude' mirror feeding it.


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tim53
Postmaster
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Reged: 12/17/04

Loc: Highland Park, CA
Re: Restoring my 8" f/6 Springfield new [Re: Chuck Hards]
      #6046275 - 08/26/13 12:46 AM

Yep.

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Bill Griffith
sage


Reged: 08/12/09

Loc: Ca.
Re: Restoring my 8" f/6 Springfield new [Re: tim53]
      #6046559 - 08/26/13 08:52 AM

Tim,

Thanks for bringing your 1981 Merit Award RTMC Springfield to the dance at JSF!

Many amateurs considered veterans have never had a chance to look through an instrument of this design. Hence the lines were pretty long for a view!

The sky quality and Perseid's will be a night to remember for a long long time!

You were instrumental in many ways to another successful "Woodstock for Astronomy Geeks" gathering.

Thanks!!!

Bill


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Jeff Phinney
super member


Reged: 02/20/13

Loc: CA
Re: Restoring my 8" f/6 Springfield new [Re: Chuck Hards]
      #6046977 - 08/26/13 01:02 PM

Quote:

Quote:

Holding the page open is..... an ash tray copy of the Palomar 200" mirror sold at Corning.

- Dave




Wow Dave, that's only the second one of those 200-inch ashtray replicas I've ever seen. Here's mine:





I so badly want one of those.


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mustgobigger
Postmaster
*****

Reged: 06/12/07

Loc: Michigan
Re: Restoring my 8" f/6 Springfield new [Re: Jeff Phinney]
      #6047230 - 08/26/13 03:44 PM

one of those ashtray's on ebay right now

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Chuck Hards
Post Laureate
*****

Reged: 05/03/10

Loc: The Great Basin
Re: Restoring my 8" f/6 Springfield new [Re: mustgobigger]
      #6047497 - 08/26/13 06:33 PM

How many people, I wonder, have been tempted to grind one into an actual mirror? They are probably not strain-free, but still, it would be darn cool.

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dgreyson
professor emeritus
*****

Reged: 11/06/12

Loc: South Carolina
Re: Restoring my 8" f/6 Springfield new [Re: Chuck Hards]
      #6047544 - 08/26/13 07:13 PM

There are no telling how many of those are still floating around. Is it inscribed with anything to tell what it is or is it only those of us who recognize the patter that know what it is I wonder.

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Chuck Hards
Post Laureate
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Reged: 05/03/10

Loc: The Great Basin
Re: Restoring my 8" f/6 Springfield [Re: dgreyson]
      #6047600 - 08/26/13 07:56 PM

Quote:

There are no telling how many of those are still floating around. Is it inscribed with anything to tell what it is or is it only those of us who recognize the patter that know what it is I wonder.




Molded around the circumference on the top side, it reads:

CORNING GLASS WORKS. REPLICA 200 INCH PYREX TELESCOPE DISC.

And it does appear to be genuine Pyrex.

I've seen pictures of the original box. I believe that they could be purchased as a set, to be used as coasters or ashtrays, or individually. The diameter is 3-5/16".


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Jeff Phinney
super member


Reged: 02/20/13

Loc: CA
Re: Restoring my 8" f/6 Springfield new [Re: mustgobigger]
      #6048510 - 08/27/13 10:08 AM

Brian,
Thanks so much for the heads up, but it's getting a little to rich for my blood. Looks like word got out. Currently $50 as of this posting and still 5 days to go.

Thanks again, Jeff


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Chuck Hards
Post Laureate
*****

Reged: 05/03/10

Loc: The Great Basin
Re: Restoring my 8" f/6 Springfield new [Re: Jeff Phinney]
      #6049017 - 08/27/13 02:52 PM

Fifty bucks??? What, does it include one of Russell Porter's cigar butts or something?

I took a 20-year accumulation of ATM-related aluminum scrap to the recycler's this morning. $235, including one bag of crushed cans. While there I noticed somebody had brought in a Celestron 50mm refractor OTA. I asked them if they were going to just throw-out the lens and plastic cell, could I have it? They said "go for it". So I took out the three screws holding it onto the tube and brought it home. The objective is in perfect shape, glad to have saved it from the landfill. For some reason, we don't recycle glass here.


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Jeff Phinney
super member


Reged: 02/20/13

Loc: CA
Re: Restoring my 8" f/6 Springfield new [Re: Chuck Hards]
      #6049070 - 08/27/13 03:16 PM

Quote:

Fifty bucks??? What, does it include one of Russell Porter's cigar butts or something?






Hey, I'd pay fifty bucks for that cigar butt,.... with a certificate of authenticity of course.
Any residual spittle could be used to clone a new RWP, all in the interest of advancing the science and hobby of telescope making.

Edited by Jeff Phinney (08/27/13 03:18 PM)


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fjs
scholastic sledgehammer
*****

Reged: 03/25/13

Loc: Olympic Peninsula, USA
Re: Restoring my 8" f/6 Springfield new [Re: Jeff Phinney]
      #6049406 - 08/27/13 06:21 PM

Shame you missed out. How does one bid $50.06 anyway?

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Jeff Phinney
super member


Reged: 02/20/13

Loc: CA
Re: Restoring my 8" f/6 Springfield new [Re: fjs]
      #6049487 - 08/27/13 07:20 PM

I'll assume that there are plenty of folks out there that wanted it more than I did. I think we'd be surprised at how many folks saw the discussion that David stared regarding the ashtrays, probably starting a small feeding frenzy.
Be interesting to see what it finally goes at.


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dgreyson
professor emeritus
*****

Reged: 11/06/12

Loc: South Carolina
Re: Restoring my 8" f/6 Springfield new [Re: Jeff Phinney]
      #6049662 - 08/27/13 08:52 PM

The problem is, I dont smoke, or I could talk myself into bidding for it.

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fjs
scholastic sledgehammer
*****

Reged: 03/25/13

Loc: Olympic Peninsula, USA
Re: Restoring my 8" f/6 Springfield new [Re: dgreyson]
      #6049671 - 08/27/13 09:02 PM

Quote:

The problem is, I dont smoke, or I could talk myself into bidding for it.




It would be HERESY to actually use it as an ashtray!



Use it as a coaster.


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