Telescope Reviews: Unitron 131-C

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Equipment Discussions >> Classic Telescopes

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terraclarke
Pooh-Bah

Reged: 05/29/12

Loc: Over the river and thru the wo...

Re: Unitron 131-C new

[Re: Dave M]
#5728537 - 03/12/13 04:32 PM

Looking good. Shines up like new baby!

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Dave M
Postmaster

Reged: 08/03/04

Loc: N.E.Ohio

Re: Unitron 131-C new

[Re: terraclarke]
#5728542 - 03/12/13 04:35 PM

Thanks! Terra

Edited by Dave M (03/12/13 05:00 PM)

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akman1955
Carpal Tunnel

Reged: 09/07/09

Loc: Alaska, USA

Re: Unitron 131-C new

[Re: starman876]
#5741156 - 03/18/13 05:01 PM

Quote:

reportedly 100 131C's
None of the 131C's I have are with a green lens. I was hoping because rumor had it they were made by Pentax.

I have had 3 131-c and two I still have are green tinted lense. the polarex the brian has was not green tinted...also the 132-c I had was green tinted to and bought that in 1980

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akman1955
Carpal Tunnel

Reged: 09/07/09

Loc: Alaska, USA

Re: Unitron 131-C new

[Re: akman1955]
#5741170 - 03/18/13 05:07 PM Attachment (13 downloads)

one of my green tinted ones has a number on lense..the other does not but both green tinted

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akman1955
Carpal Tunnel

Reged: 09/07/09

Loc: Alaska, USA

Re: Unitron 131-C new

[Re: akman1955]
#5741173 - 03/18/13 05:08 PM Attachment (14 downloads)

other one powdercoated mistic purple

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terraclarke
Pooh-Bah

Reged: 05/29/12

Loc: Over the river and thru the wo...

Re: Unitron 131-C new

[Re: Dave M]
#5741201 - 03/18/13 05:22 PM

You are gonna love that eq. mount Dave. It is the same as on my Model 128 except with a heavier counter weight (yours). It is smooth as butter and rock solid. I am going to get the clock drive for mine next month, in time for summer observing. If you decide to get the clock drive, you need the one for the 128 (60mm) not the 142 (76mm).

Post Extras:

Dave M
Postmaster

Reged: 08/03/04

Loc: N.E.Ohio

Re: Unitron 131-C new

[Re: terraclarke]
#5741381 - 03/18/13 06:38 PM

Thanks for posting that info John, thats interesting, makes me wonder how many had the green lens. Nice scopes ..
Mine came with two different length tubes that go into the focuser drawtube, not sure of the purpose of that.?

Terra, Thanks for the info on the drive, i wasnt aware there was two models. I been thinking about adding one sometime this summer. I should have this gem ready to see light again soon, i just finished up the Unihex, took it apart and cleaned it, cleaned the little spring and ball bearing, lightly re-lubed it. It now works like new, clicks right into each position now

..
Next up is the tripod and cleaning the focuser..

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akman1955
Carpal Tunnel

Reged: 09/07/09

Loc: Alaska, USA

Re: Unitron 131-C new

[Re: Dave M]
#5742454 - 03/19/13 08:56 AM

Dave different length draw tubes allow you to focus different eyepieces(higher power need longer drawtubes)...They also only made 100 of the 75mm compacts and 25 of the 100mm compacts.

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akman1955
Carpal Tunnel

Reged: 09/07/09

Loc: Alaska, USA

Re: Unitron 131-C new

[Re: akman1955]
#5742457 - 03/19/13 08:58 AM Attachment (11 downloads)

Dave, here is what original box looks like..

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starman876
Carpal Tunnel

Reged: 04/28/08

Loc: VA

Re: Unitron 131-C new

[Re: akman1955]
#5743351 - 03/19/13 04:13 PM

if you also look closely you will see that the 131C has the deluxe 75mm focuser.

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Dave M
Postmaster

Reged: 08/03/04

Loc: N.E.Ohio

Re: Unitron 131-C new

[Re: starman876]
#5744943 - 03/20/13 11:38 AM

Thanks John,

thats what i thought about those tubes since they each have a eyepiece adapter on them, but i wasnt 100% sure about it.
Appreciate the box image, if you get a chance could you please post the measurements of the box ?.

Thanks Johann, i keep learning more and more about these scopes thanks to all the fantastic members here.

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Dave M
Postmaster

Reged: 08/03/04

Loc: N.E.Ohio

Re: Unitron 131-C new

[Re: Dave M]
#5748658 - 03/21/13 10:18 PM

Anyone know what kind of metal the Unitron tripod spreader bar/tray is made of ?
Looks a gold color..

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TOM KIEHL
member

Reged: 11/17/12

Loc: N.E. Ohio

Re: Unitron 131-C new

[Re: Dave M]
#5748661 - 03/21/13 10:19 PM

TRY a magnet on it dave

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Dave M
Postmaster

Reged: 08/03/04

Loc: N.E.Ohio

Re: Unitron 131-C new

[Re: TOM KIEHL]
#5748674 - 03/21/13 10:23 PM

Tried it, its magnetic..

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TOM KIEHL
member

Reged: 11/17/12

Loc: N.E. Ohio

Re: Unitron 131-C [Re: Dave M]
#5748688 - 03/21/13 10:31 PM

Well then it's not GOLD, it maybe gold colored, and cost as much as gold , but it must have some iron it, ide say it is cad. plated or zinc plated...

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Dave M
Postmaster

Reged: 08/03/04

Loc: N.E.Ohio

Re: Unitron 131-C [Re: TOM KIEHL]
#5748703 - 03/21/13 10:58 PM

Somehow i knew the GOLD comment was coming

Mine spreader tray has a couple dark spots, maybe rust.
Wonder whats the best way to clean or restore it.

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Dave M
Postmaster

Reged: 08/03/04

Loc: N.E.Ohio

Re: Unitron 131-C [Re: Dave M]
#5748708 - 03/21/13 11:03 PM

Well, i found this, so it looks like your right about the zinc plating.
http://www.yellowzincplating.com/

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starman876
Carpal Tunnel

Reged: 04/28/08

Loc: VA

Re: Unitron 131-C [Re: Dave M]
#5748722 - 03/21/13 11:11 PM

Or you could get a new one. I have heard rumors of someone that has them

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TOM KIEHL
member

Reged: 11/17/12

Loc: N.E. Ohio

Re: Unitron 131-C [Re: Dave M]
#5748731 - 03/21/13 11:14 PM

Quote:

Somehow i knew the GOLD comment was coming
Mine spreader tray has a couple dark spots, maybe rust.
Wonder whats the best way to clean or restore it.

Well without getting too agressive with cleaning, Why not try that real fine polishing compound you have??

Post Extras:

Dave M
Postmaster

Reged: 08/03/04

Loc: N.E.Ohio

Re: Unitron 131-C [Re: TOM KIEHL]
#5748758 - 03/21/13 11:30 PM Attachment (6 downloads)

I did, it helped but the spotting is still there.
Tomorrow i`ll add a image to this post.

edit

Here`s the tray, its not that bad, mainly just has a little corrosion along the bottom crease in the tray and around a couple rivets, and a couple spots on one of the arms.
It probably wouldnt bother most people, but me thats another story

Edited by Dave M (03/22/13 01:34 PM)

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