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Unitron Rescue 4" Photo Equatorial.

classic refractor
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#26 rolo

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Posted 12 February 2019 - 07:29 PM

I'm pretty sure the weight on the bottom right is for the weight driven clock drive.

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#27 terraclarke

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Posted 12 February 2019 - 07:31 PM

Someone has to rescue these classics, specially Unitronswaytogo.gif

I’ve rescued my share. I love my two! Of the 14 classic and ATM scopes comprising my now static and permanent collection, two are Unitrons.


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#28 CHASLX200

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Posted 12 February 2019 - 07:54 PM

This mount has a partial gear for declination. Haven't seen that system before but I suspect its and early to mid 50's? Lens Cell says Unitron 102mm FL 1500mm. 

If the OTA is brass and has two weights inside it would be around 1954 to 55 or close to it. My M160 was before they had uniclamps as the guide scope rings mounted to threaded holes inside the tube weights.  My focuser was before the Super focuser and the dust cap looked like a jar lid and the lens was 100mm with no ears.  The mount had a smooth counter weight shaft and a bigger and sharp edged counter weight and a bigger RA knob.  Mine was missing the weight drive, but had the weight and some other parts.  Now looking at more pics your OTA is much newer than my M160 was.  You also have the same focus knobs my around 1960 M152 had.  So by looking at the pics i would say around 1958 to 62.


Edited by CHASLX200, 12 February 2019 - 08:00 PM.

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#29 starman876

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Posted 12 February 2019 - 08:08 PM

I'm still in the market for 3 of these bad boys...

I may have found a substitute that works very nicely. 


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#30 starman876

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Posted 12 February 2019 - 08:10 PM

I'm pretty sure the weight on the bottom right is for the weight driven clock drive.

Nice tool box.  The nickel plated tube with the clamp is for the camera. I see you have some of the coupling rods to connect the weight drive to the mount. 


Edited by starman876, 12 February 2019 - 08:11 PM.

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#31 starman876

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Posted 12 February 2019 - 08:12 PM

Best post I have seen in a long time waytogo.gif


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#32 rolo

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Posted 12 February 2019 - 08:51 PM

Best post I have seen in a long time waytogo.gif

That's cause you're the biggest Unitron fan in the classicssmile.gif


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#33 rolo

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Posted 12 February 2019 - 08:53 PM

Nice tool box.  The nickel plated tube with the clamp is for the camera. I see you have some of the coupling rods to connect the weight drive to the mount. 

I think the second item from the left that looks like socket is what the counter weight for the drive hangs on.



#34 tim53

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Posted 12 February 2019 - 09:01 PM

Okay, here goes:  You just need the Unitron weight drive now!


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#35 starman876

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Posted 12 February 2019 - 09:14 PM

I think the second item from the left that looks like socket is what the counter weight for the drive hangs on.

That is correct



#36 davidmcgo

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Posted 12 February 2019 - 09:34 PM

I recall the weights for the drive being fairly large and thin with a u shaped slot, so the thin weight in the picture towards the right looks more like a sliding tube counterweight.

 

Dave


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#37 Jim Curry

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Posted 12 February 2019 - 09:54 PM

Can't wait to see it set up, Rolo!!

 

Jim


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#38 starman876

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Posted 12 February 2019 - 10:34 PM

I recall the weights for the drive being fairly large and thin with a u shaped slot, so the thin weight in the picture towards the right looks more like a sliding tube counterweight.

 

Dave

I might have some extra weight drive weights.  They have appeared on ebay now and then.


Edited by starman876, 12 February 2019 - 10:35 PM.


#39 rolo

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Posted 12 February 2019 - 10:56 PM

I recall the weights for the drive being fairly large and thin with a u shaped slot, so the thin weight in the picture towards the right looks more like a sliding tube counterweight.

 

Dave

I think there were different variations of the drive. Mine is probably like this one.

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#40 rolo

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Posted 12 February 2019 - 10:58 PM

Can't wait to see it set up, Rolo!!

 

Jim

Hi Jim, Next I will clean up the mount and then assemble it for pics and for testing. I will refinish the legs in the spring.



#41 rolo

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Posted 12 February 2019 - 11:00 PM

Okay, here goes:  You just need the Unitron weight drive now!

If that works you need to buy a crystal ball and go into businessshocked.gif


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#42 J A VOLK

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Posted 13 February 2019 - 01:13 AM

Just a note - Unitron made an electric drive that was a direct replacement for the weight drive. It sits on the tray and uses the same linkage - actually much more rare than the weight drive, but certainly doesn't look as cool.
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#43 Piggyback

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Posted 13 February 2019 - 01:59 AM

Congratulations on a great find and thanks for sharing, rolo. flowerred.gif

Beautiful Unis like this never turn up on my side of the pond. bawling.gif  

Enjoy the hunt for a weight drive. You'll get there, eventually. waytogo.gif


Edited by Piggyback, 13 February 2019 - 02:00 AM.

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#44 shredder1656

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Posted 13 February 2019 - 05:50 AM

RO.LO  

 

ro * lo/

 

(noun)

 

     1. A person who successfully hunts and captures rare and evasive classic telescopes.  

   

     2. A person who should probably box and send their AP180 to someone in Indiana so they have enough room for their "new" and amazing classic Unitron.  

 

(SHREDDER-  (noun) 1.  A guy who just wants to help.  )  lol.gif 

 

 

Seriously, CONGRATS on a stunning find.  Very cool that they found the camera.  waytogo.gif 


Edited by shredder1656, 13 February 2019 - 05:56 AM.

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#45 CHASLX200

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Posted 13 February 2019 - 06:09 AM

I think there were different variations of the drive. Mine is probably like this one.

I had the same weight like seen in that pic. Seems the pretty black luster of the paint fades after 50+ years.  My M160 was in sad shape when i got it. 



#46 starman876

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Posted 13 February 2019 - 06:15 AM

If that works you need to buy a crystal ball and go into businessshocked.gif

I can send you a picture of my weight drive if it helps.  Can send you a picture of the rare electric drive also. grin.gif


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#47 combatdad

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Posted 13 February 2019 - 06:54 AM

I can send you a picture of my weight drive if it helps.  Can send you a picture of the rare electric drive also. grin.gif

A photo of the electric drive on my Model 510, 5 inch Unitron: https://www.unitronh...l-510/dscn3480/

 

Dave


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#48 Jim Curry

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Posted 13 February 2019 - 07:38 AM

I don't know if they've sold but someone's been advertising the mechanical drive recently on the regular sites.

 

Jim


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#49 rolo

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Posted 13 February 2019 - 07:53 AM

It would be a blessing if they find the drive cause they cost more than the scope!



#50 rolo

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Posted 13 February 2019 - 08:01 AM

The objective cleaned up well. Also, the finder-scope eyepiece was very dirty but after a disassembly and cleaning it turned out very nice. I like the fine double cross hairs too. 

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