Jump to content

  •  

CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.

Photo

Craigslist,eBay and other vintage/classic telescope ads

  • Please log in to reply
333 replies to this topic

#51 RichA

RichA

    Voyager 1

  • *****
  • Posts: 10,886
  • Joined: 03 Jun 2010
  • Loc: Toronto, Canada

Posted 05 July 2024 - 06:26 PM

Many scopes, accessories, etc listed in Scarsdale NY Online Auction, starting to close Fri, Jul 12, 2024 at 8:00 PM EDT.

 

Examples:

 

10" Meade Ultra High Contrast SCT

 

Mayflower Model 814 D-60mm F-700mm Altaz & Wood Case

 

76mm 3" Diameter (Surplus Shed) Mak Lens Set (silvered spot meniscus and primary)

 

Barium Sulphate Coated 10" primary & 3 1/2" X 2 1/2" Oval diagonal (curvature not listed)

 

Oberwerk 15x70 Fully Multi Coated BAK-PRISMS Binoculars

 

and other cra... er, treasures.

Why would they used barium sulfate?  It reflects about 98% of the light, but I wasn't aware it was silver in colour, I though it was white?  Good for UV, apparently.



#52 RichA

RichA

    Voyager 1

  • *****
  • Posts: 10,886
  • Joined: 03 Jun 2010
  • Loc: Toronto, Canada

Posted 05 July 2024 - 06:27 PM

I saw one of those here in another thread.

So very cool. 

Then I saw the price. That took the wind out of my sails.

I no clue if it is a good price, just not for me.

Should be $100.00.



#53 ccwemyss

ccwemyss

    Gemini

  • *****
  • Posts: 3,032
  • Joined: 11 Aug 2016
  • Loc: Massachusetts

Posted 05 July 2024 - 09:00 PM

6" Dynascope with three original eyepieces and sales literature. A bit rusty and dusty. $90. Near Albany, NY.

 

https://albany.craig...7763276207.html

 

Chip W. 


  • RichA and Bomber Bob like this

#54 deSitter

deSitter

    Still in Old School

  • *****
  • Posts: 18,555
  • Joined: 09 Dec 2004

Posted 05 July 2024 - 11:51 PM

Why would they used barium sulfate?  It reflects about 98% of the light, but I wasn't aware it was silver in colour, I though it was white?  Good for UV, apparently.

Very even and high reflectance curve for IR to visual to UV applications. No idea about blooming or any of that, which is important for reflective coatings. Basically paint :) I have no idea how paint becomes a mirror coating :)

 

-drl


  • SandyHouTex likes this

#55 Kasmos

Kasmos

    Fly Me to the Moon

  • *****
  • Posts: 6,954
  • Joined: 19 Aug 2015
  • Loc: So Cal

Posted 06 July 2024 - 04:39 AM

 

Haven't seen this re-brand before...   Circa ~ 1958 Scanex (T) 60x800 AZ Kit w/ Wood Cabinet:   https://www.ebay.com...oNSQZA&LH_BIN=1

 

$150 OBO + shipping.

Interesting for  a couple of reasons.

1. Not many of these old Towas (other than Selsi) had that mount. 

2. That might be the only example we seen so far of a old 60/800mm Towa that has a engraved focuser featuring a Circle T.


Edited by Kasmos, 06 July 2024 - 04:39 AM.

  • ericb760, Bomber Bob, reverse_syzygy and 1 other like this

#56 Senex Bibax

Senex Bibax

    Apollo

  • *****
  • Posts: 1,482
  • Joined: 01 Feb 2019
  • Loc: Ottawa, ON

Posted 06 July 2024 - 06:05 AM

Why would they used barium sulfate?  It reflects about 98% of the light, but I wasn't aware it was silver in colour, I though it was white?  Good for UV, apparently.

Left over from a GI tract exam? My only encounter with BaSO4 was drinking a cupful of chalky, heavy liquid.


  • SandyHouTex likes this

#57 Paul Hyndman

Paul Hyndman

    Surveyor 1

  • -----
  • Posts: 1,533
  • Joined: 13 Jul 2004
  • Loc: CT Shoreline

Posted 06 July 2024 - 09:11 AM

Why would they used barium sulfate?  It reflects about 98% of the light, but I wasn't aware it was silver in colour, I though it was white?  Good for UV, apparently.

Maybe someone  misunderstand and listed as "barium sulfate" instead of "beral" or "beryllium" (brain faht from a would be techie wonk)?


  • SandyHouTex and flyboyu777 like this

#58 reverse_syzygy

reverse_syzygy

    Mariner 2

  • *****
  • Posts: 283
  • Joined: 19 Aug 2021
  • Loc: Pittsburgh, PA, USA

Posted 06 July 2024 - 10:35 AM

Interesting for  a couple of reasons.

1. Not many of these old Towas (other than Selsi) had that mount. 

...

I have to put up photos of my Orbit 2253 for you folks to look at. 

I can't find any real info on it, but various parts look the same as various other scopes.

(that Scanex looks like same mount and legs to my untrained eyes)
 



#59 deSitter

deSitter

    Still in Old School

  • *****
  • Posts: 18,555
  • Joined: 09 Dec 2004

Posted 06 July 2024 - 10:42 AM

Maybe someone  misunderstand and listed as "barium sulfate" instead of "beral" or "beryllium" (brain faht from a would be techie wonk)?

Barium sulfate is just a salt. No idea how they get it on a mirror, but it's just paint! Must be a way to apply a layer of paint that is a few molecules thick. Beral? No one seems to know what it is, but it was an innovation of Leroy Clausing Coatings, That company is still in business I suppose, several generations down the road. But, that is vacuum evaporation deposited like plain old aluminum.

 

-drl



#60 starfinder123123

starfinder123123

    Viking 1

  • *****
  • Posts: 536
  • Joined: 25 Mar 2022

Posted 06 July 2024 - 02:40 PM

For sale near me. Anyone knows what it is?

 

Attached Thumbnails

  • Screenshot 2024-07-06 at 1.38.36 PM.jpeg


#61 deSitter

deSitter

    Still in Old School

  • *****
  • Posts: 18,555
  • Joined: 09 Dec 2004

Posted 06 July 2024 - 05:36 PM

For sale near me. Anyone knows what it is?

That's modern department store junk. Avoid. All plastic, probably a simple sight tube finder, or single element tiny objective.

 

-drl


  • starfinder123123 likes this

#62 laixiaolue

laixiaolue

    Mariner 2

  • *****
  • Posts: 286
  • Joined: 25 Mar 2017
  • Loc: USA

Posted 06 July 2024 - 06:25 PM

Edmund Scientific 4 inch reflector? free in Bay Area.

 

https://sfbay.craigs...7763719149.html


  • deSitter likes this

#63 deSitter

deSitter

    Still in Old School

  • *****
  • Posts: 18,555
  • Joined: 09 Dec 2004

Posted 06 July 2024 - 06:34 PM

Edmund Scientific 4 inch reflector? free in Bay Area.

 

https://sfbay.craigs...7763719149.html

Holy cow!

 

Putting a Bay Area friend on this.

 

-drl



#64 laixiaolue

laixiaolue

    Mariner 2

  • *****
  • Posts: 286
  • Joined: 25 Mar 2017
  • Loc: USA

Posted 06 July 2024 - 07:15 PM

Holy cow!

 

Putting a Bay Area friend on this.

 

-drl

It was gone? the post was deleted.



#65 starfinder123123

starfinder123123

    Viking 1

  • *****
  • Posts: 536
  • Joined: 25 Mar 2022

Posted 06 July 2024 - 07:17 PM

That's modern department store junk. Avoid. All plastic, probably a simple sight tube finder, or single element tiny objective.

-drl


Thank you! And it’s $35.
  • strdst likes this

#66 Marc-Andre

Marc-Andre

    Apollo

  • *****
  • Posts: 1,298
  • Joined: 18 Aug 2011
  • Loc: New Hampshire

Posted 06 July 2024 - 07:26 PM

For sale near me. Anyone knows what it is?

Looks like a Sears I had in 1965. As deSitter said it's all plastic. The finder has no optics. Rubber friction focuser. The metal tube has a "stovepipe" like seam. Pot metal altazimuth mount.  This one has been on the local market for $35, for over a year. Here. Oddly there's another local on for $120. 


Edited by Marc-Andre, 07 July 2024 - 07:36 AM.

  • starfinder123123 likes this

#67 RichA

RichA

    Voyager 1

  • *****
  • Posts: 10,886
  • Joined: 03 Jun 2010
  • Loc: Toronto, Canada

Posted 06 July 2024 - 08:27 PM

Very even and high reflectance curve for IR to visual to UV applications. No idea about blooming or any of that, which is important for reflective coatings. Basically paint smile.gif I have no idea how paint becomes a mirror coating smile.gif

 

-drl

Yes, it's like coating a mirror with titanium dioxide.  Weird.



#68 starfinder123123

starfinder123123

    Viking 1

  • *****
  • Posts: 536
  • Joined: 25 Mar 2022

Posted 06 July 2024 - 11:19 PM

Looks like a Sears I from 1965. As deSitter said it's all plastic. The finder has no optics. Rubber friction focuser. The metal tube has a "stovepipe" like seam. Pot metal altazimuth mount.  This one has been on the local market for $35, for over a year. Here. Oddly there's another local on for $120. 

Thank you. Yup that is it. Same scope.



#69 Lemmon714

Lemmon714

    Mariner 2

  • *****
  • Posts: 203
  • Joined: 16 Oct 2021
  • Loc: SE PA, 19044

Posted 07 July 2024 - 04:52 AM

Here is an Ebay find.  Two (2) bids by the same person.  Mostly complete- I can't tell if there are any eyepieces with the scope.  60/ 800.

 

https://www.ebay.com...84075&recoPos=1

 

 


  • Bomber Bob and Defenderslideguitar like this

#70 ericb760

ericb760

    Viking 1

  • ****-
  • Posts: 740
  • Joined: 17 Apr 2009
  • Loc: Palm Springs, CA

Posted 07 July 2024 - 07:20 AM

Here is an Ebay find.  Two (2) bids by the same person.  Mostly complete- I can't tell if there are any eyepieces with the scope.  60/ 800.

 

https://www.ebay.com...84075&recoPos=1

No doubt that there are a number of people waiting to snipe on that as the auction end draws closer. No way that it doesn't go above $100, or probably even more. If I hadn't just made three other purchases this week, I would have no problem bidding $100 on it.



#71 Garyth64

Garyth64

    Cosmos

  • *****
  • Posts: 8,141
  • Joined: 07 May 2015
  • Loc: SE Michigan

Posted 07 July 2024 - 07:42 AM

Old mount for 60mm scope:

 

https://www.ebay.com...:Bk9SR-DmpdORZA

 

This is a mount that would come with a Tasco 7TE-5.


  • Bomber Bob likes this

#72 deSitter

deSitter

    Still in Old School

  • *****
  • Posts: 18,555
  • Joined: 09 Dec 2004

Posted 07 July 2024 - 07:46 AM

Old mount for 60mm scope:

 

https://www.ebay.com...:Bk9SR-DmpdORZA

 

This is a mount that would come with a Tasco 7TE-5.

That's in good shape! I have the same mount in a Monolux incarnation, and it's the most precise classic mount I have. It is difficult to adjust the RA mesh but once done it is perfectly smooth with very little main gear runout.

 

-drl


  • Bomber Bob and Garyth64 like this

#73 Bomber Bob

Bomber Bob

    ISS

  • *****
  • Posts: 23,820
  • Joined: 09 Jul 2013
  • Loc: The Swamp, LA (Lower Alabama)

Posted 07 July 2024 - 10:53 AM

That's in good shape! I have the same mount in a Monolux incarnation, and it's the most precise classic mount I have. It is difficult to adjust the RA mesh but once done it is perfectly smooth with very little main gear runout.

 

-drl

Related:  The BEST Setting Circles I've owned in this 1960s class EQ were the flat-rimmed & engraved pair on the Monolux 4380.  The ASTRO versions - lines & numbers printed / silk-screened (?) on angled metal - can fade or rub off.  Found that out with my Sears 6336.  The whole mount & pedestal was heavily coated in tobacco smoke residue...  Wonder if that damaged them??


  • tturtle likes this

#74 SandyHouTex

SandyHouTex

    Cosmos

  • *****
  • Posts: 9,089
  • Joined: 02 Jun 2009
  • Loc: Houston, Texas, USA

Posted 07 July 2024 - 12:05 PM

No doubt that there are a number of people waiting to snipe on that as the auction end draws closer. No way that it doesn't go above $100, or probably even more. If I hadn't just made three other purchases this week, I would have no problem bidding $100 on it.

Sold for $67.


  • ericb760 likes this

#75 Russell Smith

Russell Smith

    Mercury-Atlas

  • *****
  • Posts: 2,987
  • Joined: 27 Aug 2017
  • Loc: 76645

Posted 07 July 2024 - 12:17 PM

Nice, someone stole it.
  • deSitter likes this


CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.


Recent Topics






Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics