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

Criterion RV-6 question

  • Please log in to reply
27 replies to this topic

#1 GoodAsh

GoodAsh

    Viking 1

  • *****
  • topic starter
  • Posts: 555
  • Joined: 15 Jan 2013
  • Loc: New Jersey

Posted 24 January 2020 - 03:30 PM

Hello all!

 

Question about an RV-6.  When I received this scope it was in about a hundred pieces. Low and behold, after about 6 months of tinkering I have it put together. Now I’d like to know a rough age for this classic. I’d like to bring it to our booth at NEAF but want to be able to answer questions people ask. Any ideas?

 

Al Carcich

Attached Thumbnails

  • 9695A73A-6E5A-4F65-81B8-84BDC7ADEC75.jpeg
  • A7B61F18-2FCE-4D39-8B04-E7039323445D.jpeg

  • George N, Marc-Andre, Bomber Bob and 2 others like this

#2 photoracer18

photoracer18

    Gemini

  • *****
  • Posts: 3,139
  • Joined: 02 Sep 2013
  • Loc: Martinsburg, WV

Posted 24 January 2020 - 03:36 PM

Looks like the one I bought new in 1964 except I later added a tangent arm slo-motion control to the DEC axis sort of like the ones on the big Dynascopes.


  • GoodAsh likes this

#3 deepwoods1

deepwoods1

    Surveyor 1

  • *****
  • Posts: 1,682
  • Joined: 25 Sep 2009
  • Loc: Connecticut

Posted 24 January 2020 - 03:37 PM

Does it have ” Lunar Lander” style feet? That would move it into the 70’s. It does look like it could fit the period.


  • GoodAsh likes this

#4 John Higbee

John Higbee

    Viking 1

  • *****
  • Posts: 756
  • Joined: 17 Jul 2012
  • Loc: Virginia

Posted 24 January 2020 - 03:47 PM

Mid '60s to early '70s.  John


  • GoodAsh likes this

#5 John Higbee

John Higbee

    Viking 1

  • *****
  • Posts: 756
  • Joined: 17 Jul 2012
  • Loc: Virginia

Posted 24 January 2020 - 03:51 PM

check this string for further info:

 

https://www.cloudyni...thread/?hl= rv 

 

John


  • GoodAsh likes this

#6 Jim Davis

Jim Davis

    Skylab

  • *****
  • Posts: 4,150
  • Joined: 05 Jul 2014
  • Loc: Lewisberry, PA

Posted 24 January 2020 - 04:05 PM

Looks just like the one I had in the mid-70's


  • GoodAsh likes this

#7 Jim R

Jim R

    Sputnik

  • *****
  • Posts: 28
  • Joined: 20 Jul 2017

Posted 24 January 2020 - 04:13 PM

Looks like the one I had in 77.


  • GoodAsh likes this

#8 DAVIDG

DAVIDG

    Cosmos

  • *****
  • Posts: 9,235
  • Joined: 02 Dec 2004
  • Loc: Hockessin, De

Posted 24 January 2020 - 04:35 PM

 The best way to get an idea is to look at the date stamped on the side of the clock drive motor.

 

                          - Dave 


  • Jon Isaacs, Mr Magoo, Marc-Andre and 1 other like this

#9 GoodAsh

GoodAsh

    Viking 1

  • *****
  • topic starter
  • Posts: 555
  • Joined: 15 Jan 2013
  • Loc: New Jersey

Posted 24 January 2020 - 04:51 PM

Does it have ” Lunar Lander” style feet? That would move it into the 70’s. It does look like it could fit the period.

Here’s a pic of the focused and one of the feet. They don’t look like lunar landers!

 

Al

Attached Thumbnails

  • 29D1BEC4-BA24-44B4-ABD6-37EC7A725F28.jpeg
  • 39052E68-66D2-4E04-9704-66D578E4A08D.jpeg


#10 GoodAsh

GoodAsh

    Viking 1

  • *****
  • topic starter
  • Posts: 555
  • Joined: 15 Jan 2013
  • Loc: New Jersey

Posted 24 January 2020 - 04:52 PM

check this string for further info:

 

https://www.cloudyni...thread/?hl= rv 

 

John

Thanks John, great thread. Gotta get the motor cover off and check it!

 

Al


  • Mr Magoo likes this

#11 Terra Nova

Terra Nova

    ISS

  • *****
  • Posts: 21,211
  • Joined: 29 May 2012
  • Loc: Middle Earth

Posted 24 January 2020 - 05:04 PM

I’d say it’s one of the earlier ones; early to mid ‘60s?


  • GoodAsh likes this

#12 John Higbee

John Higbee

    Viking 1

  • *****
  • Posts: 756
  • Joined: 17 Jul 2012
  • Loc: Virginia

Posted 24 January 2020 - 05:09 PM

Looks just like the one a friend of mine got in 1968.  John


  • GoodAsh likes this

#13 Bonco2

Bonco2

    Ranger 4

  • *****
  • Posts: 329
  • Joined: 01 Jun 2013

Posted 24 January 2020 - 05:12 PM

The feet show it to be likely from the 60's.
Bill
  • deepwoods1 and GoodAsh like this

#14 GoodAsh

GoodAsh

    Viking 1

  • *****
  • topic starter
  • Posts: 555
  • Joined: 15 Jan 2013
  • Loc: New Jersey

Posted 24 January 2020 - 05:34 PM

The feet show it to be likely from the 60's.
Bill


Interesting. Gil V posted in the thread John recommended
“Moon lander feet were earlier, not later. We never shipped those when I was there.” Hmmm.

#15 rcwolpert

rcwolpert

    Vanguard

  • *****
  • Posts: 2,479
  • Joined: 13 Aug 2012
  • Loc: South Hutchinson Island, Florida

Posted 24 January 2020 - 06:27 PM

Looks like the 1964 RV-6 I had.


  • Terra Nova and GoodAsh like this

#16 oldmanastro

oldmanastro

    Vostok 1

  • -----
  • Posts: 124
  • Joined: 17 Nov 2013
  • Loc: San Juan, Puerto Rico-US

Posted 24 January 2020 - 06:48 PM

I have one that came to me in parts 26 years ago. The pedestal feet are exactly like yours and these are about mid 60s if I am not mistaken. This thing was made to last. the mount is rough but functional and I like the clock drive clutch mechanism. Optically this one is excellent. I had the primary and secondary recoated once but it is coming up for another receipt. The last one was a Beral coating. 

 

Clear Skies!

 

Guido


  • GoodAsh likes this

#17 Chuck Hards

Chuck Hards

    You don't know Swift from Astrola

  • *****
  • Administrators
  • Posts: 26,626
  • Joined: 03 May 2010

Posted 24 January 2020 - 08:23 PM

Your mount has aluminum housings for the shafts.  This proves it is not an early model, they had smaller, cast-iron mount parts.  Yours is similar to mine.


  • Mr Magoo and GoodAsh like this

#18 clamchip

clamchip

    Voyager 1

  • *****
  • Posts: 10,156
  • Joined: 09 Aug 2008
  • Loc: Seattle

Posted 24 January 2020 - 08:59 PM

The long declination housing makes it 1969 and later.

This long dec housing was for the RV8 and it became standard for both

the RV6 and RV8.

 

Robert


Edited by clamchip, 24 January 2020 - 09:00 PM.

  • Mr Magoo, GoodAsh and Bomber Bob like this

#19 apfever

apfever

    Fly Me to the Moon

  • *****
  • Posts: 5,412
  • Joined: 13 May 2008
  • Loc: Colorado

Posted 24 January 2020 - 09:36 PM

Yep, everything went to that aluminum cast housing eventually, along with the occasional scraping of the shelves and floors to put another one together. 

 

Al, check your focuser housing. See if it is aluminum or iron. Cast either way. Probably aluminum. Most likely made around 1969 on.


  • GoodAsh likes this

#20 Helvetios

Helvetios

    Explorer 1

  • *****
  • Posts: 84
  • Joined: 25 Jun 2017

Posted 24 January 2020 - 09:43 PM

This looks just like the one I purchased in 1971, including the pedestal feet.

 

Richard


  • GoodAsh likes this

#21 Chuck Hards

Chuck Hards

    You don't know Swift from Astrola

  • *****
  • Administrators
  • Posts: 26,626
  • Joined: 03 May 2010

Posted 24 January 2020 - 10:08 PM

Looks like the later aluminum finder bracket, as well.


  • GoodAsh likes this

#22 Chuck Hards

Chuck Hards

    You don't know Swift from Astrola

  • *****
  • Administrators
  • Posts: 26,626
  • Joined: 03 May 2010

Posted 25 January 2020 - 01:48 AM

There were 2 or 3 pier cap variations as well, I believe this one is the last version IIRC.


  • GoodAsh likes this

#23 Gil V

Gil V

    Apollo

  • -----
  • Posts: 1,382
  • Joined: 09 Sep 2012

Posted 25 January 2020 - 09:16 AM

If it’s from the late 70’s, It is possible I built that mount. Everything about the mount looks identical to the time I did that process. I do not know for sure when that particular version first started. I think no moon lander feet makes it 1970 or later, but that’s a guess. Any original paperwork left? Any markings on the back or sides of primary mirror?

Edited by Gil V, 25 January 2020 - 12:27 PM.

  • GoodAsh likes this

#24 deepwoods1

deepwoods1

    Surveyor 1

  • *****
  • Posts: 1,682
  • Joined: 25 Sep 2009
  • Loc: Connecticut

Posted 25 January 2020 - 10:37 AM

Mine had the lunar feet. I picked it up used in ‘77. Some ads in sky & tel might help. 


  • GoodAsh likes this

#25 GoodAsh

GoodAsh

    Viking 1

  • *****
  • topic starter
  • Posts: 555
  • Joined: 15 Jan 2013
  • Loc: New Jersey

Posted 25 January 2020 - 01:15 PM

If it’s from the late 70’s, It is possible I built that mount. Everything about the mount looks identical to the time I did that process. I do not know for sure when that particular version first started. I think no moon lander feet makes it 1970 or later, but that’s a guess. Any original paperwork left? Any markings on the back or sides of primary mirror?


No paperwork but there is some writing on the back of the mirror. I noticed it when I washed it. I will post what it says as soon as I get back to it! Thanks.


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