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Equipment Discussions >> Classic Telescopes

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sgorton99
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Reged: 04/30/08

Loc: Wisconsin, Madison
Unitron 155 oh so close now new [Re: starman876]
      #5855338 - 05/12/13 12:00 PM Attachment (18 downloads)

Not 100% done, but getting close!

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sgorton99
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Reged: 04/30/08

Loc: Wisconsin, Madison
Re: Unitron 155 oh so close now new [Re: sgorton99]
      #5855342 - 05/12/13 12:02 PM Attachment (19 downloads)

And with my ugly mug for size comparison - I am 6' tall. I did not attach the guidescope or sliding weight bar yet, but it is Mother's day after all!

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starman876
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Reged: 04/28/08

Loc: VA
Re: Unitron 155 oh so close now new [Re: sgorton99]
      #5855581 - 05/12/13 02:11 PM

Great restoration. Now it is your turn

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clintwhitman
Caveman
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Reged: 01/01/07

Loc: CALI SoEasyACavemanCanSlewIt
Re: Unitron 155 oh so close now new [Re: sgorton99]
      #5855637 - 05/12/13 02:41 PM

Very nice Steve, Great looking 152, not many like this around. I can relate to the 1950s details. Few folks know how much better the machining, fit and finish are on these than the later models. Also the optics on the older OTAs seem to all be very good.

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sgorton99
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Reged: 04/30/08

Loc: Wisconsin, Madison
Re: Unitron 155 oh so close now new [Re: clintwhitman]
      #5855759 - 05/12/13 03:30 PM

Thanks. Clint, with the guide scope and sliding counterweight attached, does it become a 155?

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starman876
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Reged: 04/28/08

Loc: VA
Re: Unitron 155 oh so close now new [Re: sgorton99]
      #5855944 - 05/12/13 05:21 PM

I believe that answer can be found in the Unitron catalog

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Bill Griffith
sage


Reged: 08/12/09

Loc: Ca.
Re: Unitron 155 oh so close now new [Re: sgorton99]
      #5857037 - 05/13/13 09:11 AM

Steve,

The transformation from last Oct. is impressive

An early 152, being an original unit is a rarity would be my guess.

Have you decided on which objective?

I hope it's now just the motor drive that you would need for a 155 transformation.

Great thread!

Thanks

Bill


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sgorton99
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Reged: 04/30/08

Loc: Wisconsin, Madison
4" Unitron latitude adjuster new [Re: Bill Griffith]
      #5859216 - 05/14/13 07:04 AM Attachment (13 downloads)

Anyone have this, only about 1/2" shorter? My scope originally came from FL area, and just can't adjust to my WI 43 degrees. I would be happy to swap with some of my southern friends!

Edited by sgorton99 (05/14/13 07:06 AM)


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sgorton99
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Reged: 04/30/08

Loc: Wisconsin, Madison
Re: 4" Unitron latitude adjuster new [Re: sgorton99]
      #5859219 - 05/14/13 07:06 AM Attachment (10 downloads)

Max length.

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sgorton99
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Reged: 04/30/08

Loc: Wisconsin, Madison
Re: 4" Unitron latitude adjuster new [Re: sgorton99]
      #5859220 - 05/14/13 07:06 AM Attachment (8 downloads)

Pieces.

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sgorton99
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Reged: 04/30/08

Loc: Wisconsin, Madison
4" Unitron latitude adjuster new [Re: sgorton99]
      #5859235 - 05/14/13 07:19 AM

One solution suggested is to have a machinist cut about 1/2" from the threaded screw and the collar, but that would certainly be permanent.

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Compressorguy
Carpal Tunnel
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Reged: 03/14/09

Loc: Clayton, NC
Re: 4" Unitron latitude adjuster new [Re: sgorton99]
      #5859279 - 05/14/13 07:54 AM

Absolutely beautiful resto Steve. Congrats on a fine job.

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clintwhitman
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Reged: 01/01/07

Loc: CALI SoEasyACavemanCanSlewIt
Re: Unitron 155 oh so close now new [Re: sgorton99]
      #5859396 - 05/14/13 09:04 AM

Quote:

Thanks. Clint, with the guide scope and sliding counterweight attached, does it become a 155?



You're getting close, Add a shelf light (small thread version) and it would be a full 155. Find the bracket and electric drive and you would have a 155E.
Then the 160 would have an extra slow motion control on the DEC (for guiding) A metal tripod tray and a notch in the mount base for the weight drive linkage.
As to your turnbuckle dilemma. I might have a short turn buckle from the lost unitron, My first 4" came from Norway and Peter at Unitron sent me a longer one for a hefty fee. I will have to do some digging and see if I still have the short one!!


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starman876
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Reged: 04/28/08

Loc: VA
Re: 4" Unitron latitude adjuster new [Re: Compressorguy]
      #5859397 - 05/14/13 09:04 AM

I am looking Steve. I know I had a shorter one. I do not think I sold it with a mount. I looked last night, but did not have time to look through everything. I remember selling a mount and the guy complained about the shorter adjuster and sent it back and I sent him a longer one.

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clintwhitman
Caveman
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Reged: 01/01/07

Loc: CALI SoEasyACavemanCanSlewIt
Re: Unitron 155 oh so close now new [Re: clintwhitman]
      #5859424 - 05/14/13 09:23 AM Attachment (12 downloads)

The short one I have is a later model and takes threaded bolt from both sides. Also as I remember the original long one peter sent me only had one bolt with it so I used one of my original bolts, now I have a short reversed thread center nut and one bolt. You might call Peter at unitron and see if he has any more. he was have a local reproduce these. I measured the one on my old 152 and it is the same exact one as you have And in my opinion much cooler than the new ones!

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starman876
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Reged: 04/28/08

Loc: VA
Re: Unitron 155 oh so close now new [Re: clintwhitman]
      #5859642 - 05/14/13 11:22 AM

I do not think Unitron has much left

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sgorton99
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Reged: 04/30/08

Loc: Wisconsin, Madison
Re: Unitron 155 oh so close now new [Re: starman876]
      #5859890 - 05/14/13 01:11 PM

Clint, is it possible the partial pieces you have left could be used with pieces from mine to make a shorter whole piece?

Peter at Unitron says they are all out.


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clintwhitman
Caveman
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Reged: 01/01/07

Loc: CALI SoEasyACavemanCanSlewIt
Re: Unitron 155 oh so close now new [Re: sgorton99]
      #5861395 - 05/15/13 02:22 AM

No because the turnbuckle is threaded on both ends of the newer ones. Set you scope to polaris and get a measurement of the length you need and send the part to Bob Burns to fashion a new one in brass. and keep the old one safe. Very rare thing you have there. Don't cut it up. Also I have seen this guy advertising send him a drawing for a quote JON

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sgorton99
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Reged: 04/30/08

Loc: Wisconsin, Madison
Re: Unitron 155 oh so close now new [Re: clintwhitman]
      #5861539 - 05/15/13 06:46 AM

Thanks Clint, the hunt is on...

Johann, please let me know if you find the shorter one. I will hold off on chopping this one up (for now).

PiSigma has the opposite problem with his 4" in SC, unfortunately his is a little different design than mine and we can't just swap out. He suggested we start an exchange program for these so people can trade as they live in different parts of the country and needs change.

Steve


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starman876
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Reged: 04/28/08

Loc: VA
Re: Unitron 155 oh so close now new [Re: sgorton99]
      #5861583 - 05/15/13 07:44 AM

Steve

I have a few more boxes to go through. Will let you know tonight.


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