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

1965 Criterion RV-6 Dynascope

  • Please log in to reply
62 replies to this topic

#1 Guy Earle

Guy Earle

    Vostok 1

  • -----
  • topic starter
  • Posts: 121
  • Joined: 19 Jun 2006

Posted 25 March 2020 - 06:03 PM

Evening, everyone:

 

I've been meaning to post this, but with all the craziness lately I haven't had a chance. I posted a very recent acquisition of an 8" Meade that I was trying to identify, and back in November 2018 a 10" f/7.1 Cave Astrola from 1959 that I restored. This RV-6 was from Facebook Marketplace as well, and nearly as soon as it posted an astronomy buddy messaged me as it was only about ten minutes away. I contacted the owner, who moved recently from Colorado and was selling it for $75. It was hard to tell from the photos as it was generally just the tube and pieces of the mount. I went, curious as to what kind of scope it was, and as soon as I looked at it the maker was plain to see. Criterion advertised themselves everywhere on this scope. A quick glance at the mirror gave me hope it would clean, and then I saw the accompanying box that she had, which had letter, eyepieces, and even the original paperwork. It was clear that this was someone's complete setup and I bought it without hesitation.

 

I got it home and looked up Criterion, as I did not know much about them, much like when I got the Cave. There is little to no rust anywhere, and the mirrors cleaned up beautifully for 55-year-old coatings! I will clean up all the metal and bring it back to life. The optics already showed how good this old scope performs. It's nicely portable considering I'm comparing it to the Cave. This will be a fun, little scope to enjoy in the coming years.

 

On a side note, there was another RV-6 in our area that I purchased. It was a much newer version and completely trashed. However, it did have to very nice vinyl end caps and a 32mm Criterion eyepiece. I snapped it up for $15 and have a spare parts from the OTA (no mount with that purchase). The tube will go in the trash it is so bad, but I only got it so I could use the caps on the first RV-6 purchase. 

 

Guy

Attached Thumbnails

  • 20200310_123305.jpg
  • 20200310_132451.jpg
  • 20200309_202230.jpg
  • 20200309_202233.jpg
  • 20200309_211840.jpg
  • 20200309_212209.jpg
  • 20200309_220409.jpg

Edited by Guy Earle, 25 March 2020 - 07:56 PM.

  • tim53, GeneDiG, L. Regira and 19 others like this

#2 Guy Earle

Guy Earle

    Vostok 1

  • -----
  • topic starter
  • Posts: 121
  • Joined: 19 Jun 2006

Posted 25 March 2020 - 06:05 PM

Some more pics.

Attached Thumbnails

  • 20200309_202208.jpg
  • 20200309_222833.jpg
  • 20200309_203133.jpg
  • 20200309_203650.jpg
  • 20200325_180841.jpg
  • 20200309_213809.jpg
  • 20200309_222854.jpg
  • 20200309_223243.jpg
  • 20200309_223453.jpg

  • Paul Hyndman, tim53, Mr Magoo and 22 others like this

#3 Augustus

Augustus

    Fly Me To The Moon

  • *****
  • Posts: 8,973
  • Joined: 26 Dec 2015
  • Loc: Stamford, Connecticut

Posted 25 March 2020 - 06:09 PM

That is a fine specimen!


  • Guy Earle likes this

#4 Guy Earle

Guy Earle

    Vostok 1

  • -----
  • topic starter
  • Posts: 121
  • Joined: 19 Jun 2006

Posted 25 March 2020 - 06:09 PM

A few more, including a few with my Neximage.

Attached Thumbnails

  • 20200318_160729.jpg
  • 2020-03-18-1109_5-L-Moon_AS_p25_g6_ap329_conv edit.jpg
  • FB_IMG_1584532853457.jpg

  • Paul Schroeder, tim53, GeneDiG and 19 others like this

#5 Garyth64

Garyth64

    Aurora

  • *****
  • Posts: 4,563
  • Joined: 07 May 2015
  • Loc: SE Michigan

Posted 25 March 2020 - 06:18 PM

Fantastic photos!


  • Guy Earle and Augustus like this

#6 Terra Nova

Terra Nova

    ISS

  • *****
  • Posts: 21,557
  • Joined: 29 May 2012
  • Loc: America’s Heartland

Posted 25 March 2020 - 06:27 PM

That’s an absolutely wonderful find! Congratulations!


  • Guy Earle and Augustus like this

#7 KentTolley

KentTolley

    Viking 1

  • *****
  • Posts: 567
  • Joined: 26 Mar 2012
  • Loc: Southern California

Posted 25 March 2020 - 06:38 PM

What a beauty.   Talk about the whole enchilada.


  • Guy Earle likes this

#8 clamchip

clamchip

    Voyager 1

  • *****
  • Posts: 10,315
  • Joined: 09 Aug 2008
  • Loc: Seattle

Posted 25 March 2020 - 07:54 PM

Wow!

A wrinkle gray RV6! I've seen a few pictures but never one in person!

You are so lucky!

 

Robert


  • tim53, Guy Earle and jim kuhns like this

#9 G-Tower

G-Tower

    Messenger

  • -----
  • Posts: 420
  • Joined: 24 Mar 2018

Posted 25 March 2020 - 07:58 PM

Thank God! Something else than another 60mm



#10 Russell Smith

Russell Smith

    Apollo

  • *****
  • Posts: 1,434
  • Joined: 27 Aug 2017
  • Loc: 76707

Posted 25 March 2020 - 07:58 PM

Just now I sat down and read your post.
WOW. What a great find.
Truly makes me happy to see this in good hands.
Congratulations.
Russ

#11 Guy Earle

Guy Earle

    Vostok 1

  • -----
  • topic starter
  • Posts: 121
  • Joined: 19 Jun 2006

Posted 25 March 2020 - 07:58 PM

Wow!

A wrinkle gray RV6! I've seen a few pictures but never one in person!

You are so lucky!

 

Robert

 

Yeah, all the ones I've seen are white, and I figured it was an older model because of the tube. It's a neat Bakelite tube, exceedingly light and strong.



#12 G-Tower

G-Tower

    Messenger

  • -----
  • Posts: 420
  • Joined: 24 Mar 2018

Posted 25 March 2020 - 08:01 PM

Weren't the white RV6 and the grey Dynascope Deluxe?



#13 clamchip

clamchip

    Voyager 1

  • *****
  • Posts: 10,315
  • Joined: 09 Aug 2008
  • Loc: Seattle

Posted 25 March 2020 - 08:11 PM

Here's the wrinkle gray Company 7 RV6 article:

http://www.company7....terion_rv6.html

 

Robert


  • tim53, Guy Earle, mattyfatz and 2 others like this

#14 ccwemyss

ccwemyss

    Viking 1

  • *****
  • Posts: 929
  • Joined: 11 Aug 2016
  • Loc: Massachusetts

Posted 25 March 2020 - 08:13 PM

I've always wanted to take a look through one of those Goto star spectroscopes. They are also pretty rare. 

 

Chip W. 


  • Guy Earle and Terra Nova like this

#15 mattyfatz

mattyfatz

    Gemini

  • *****
  • Posts: 3,225
  • Joined: 27 Dec 2006
  • Loc: Boise Idaho

Posted 25 March 2020 - 08:19 PM

I have one of those 18mm eyepieces. It's a great all around eyepiece and I use it often. It's great with fast scopes as well as the RV-6. Just one of those "sweet spot" eyepieces..

   hey that gives me an idea... 


Edited by mattyfatz, 25 March 2020 - 08:25 PM.

  • Guy Earle likes this

#16 Guy Earle

Guy Earle

    Vostok 1

  • -----
  • topic starter
  • Posts: 121
  • Joined: 19 Jun 2006

Posted 25 March 2020 - 08:23 PM

Here's the wrinkle gray Company 7 RV6 article:

http://www.company7....terion_rv6.html

 

Robert

Yes, that's where I saw it! Love that article.


  • Terra Nova likes this

#17 Guy Earle

Guy Earle

    Vostok 1

  • -----
  • topic starter
  • Posts: 121
  • Joined: 19 Jun 2006

Posted 25 March 2020 - 08:24 PM

I've always wanted to take a look through one of those Goto star spectroscopes. They are also pretty rare. 

 

Chip W. 

I haven't had a chance to use it yet. It looks like it screws on top of an eyepiece.



#18 deepwoods1

deepwoods1

    Surveyor 1

  • *****
  • Posts: 1,742
  • Joined: 25 Sep 2009
  • Loc: Connecticut

Posted 25 March 2020 - 08:40 PM

Awesome score!



#19 oldmanastro

oldmanastro

    Mariner 2

  • -----
  • Posts: 218
  • Joined: 17 Nov 2013
  • Loc: San Juan, Puerto Rico-US

Posted 25 March 2020 - 09:53 PM

Incredible find. A grey wrinkle paint RV6. The documentation itself is worth its weight in gold not counting all the other goodies plus the star spectroscope. Congrats!

 

Guido



#20 DAVIDG

DAVIDG

    Cosmos

  • *****
  • Posts: 9,306
  • Joined: 02 Dec 2004
  • Loc: Hockessin, De

Posted 25 March 2020 - 10:10 PM

 Great find ! Usually by this time the cork gasket in the clock drive has dry rotted so you might want to check that out.  If it is bad it is easy to make a new one from gasket material from the auto part store and using the pressure plate in the clock drive as a template. When it comes the GOTO spectroscope, yes it is meant to be mount on top of an eyepiece.  You focus the star in the telescope eyepiece like normal. Place the spectroscope over the eyepiece. You'll  see the star smeared out into a line of the spectra. The eyepieces for the spectroscope are cylinder lens of different amounts of dispersion  power.  You rotate the eyepiece to widen the spectra from a  line into a rectangle. If you look closely you'll see faint dark absorption lines in the spectra of certain stars.  

 

          - Dave 


  • tim53, dave brock, Starsareus and 5 others like this

#21 apfever

apfever

    Fly Me to the Moon

  • *****
  • Posts: 5,540
  • Joined: 13 May 2008
  • Loc: Colorado

Posted 26 March 2020 - 08:09 AM

Colorado has the highest average land mass of the country including Alaska and Hawaii, and we are very arid to boot. This makes us great for natural preservation. I've had handfuls of RV-6 through here and I've seen that cork gasket in great condition out of many 40 - 50 year old scopes.  This is probably the exception to the rule. 

 

I've seen all kinds of RV-6 combos from original owners. I had one that was the grey wrinkle OTA. I wouldn't put much doubt in almost any combination that is 100% Edmund.

 

GUY,

Could you measure the width of your OTA mount rings? I still have yet to find the wider all around bigger ones ANYWHERE else besides the one set I have. Look at this link here:

RV-6 wide rings

 

These might be more likely on a wrinkle tube set up.


Edited by apfever, 26 March 2020 - 08:11 AM.


#22 Guy Earle

Guy Earle

    Vostok 1

  • -----
  • topic starter
  • Posts: 121
  • Joined: 19 Jun 2006

Posted 26 March 2020 - 11:37 AM

Colorado has the highest average land mass of the country including Alaska and Hawaii, and we are very arid to boot. This makes us great for natural preservation. I've had handfuls of RV-6 through here and I've seen that cork gasket in great condition out of many 40 - 50 year old scopes.  This is probably the exception to the rule. 

 

I've seen all kinds of RV-6 combos from original owners. I had one that was the grey wrinkle OTA. I wouldn't put much doubt in almost any combination that is 100% Edmund.

 

GUY,

Could you measure the width of your OTA mount rings? I still have yet to find the wider all around bigger ones ANYWHERE else besides the one set I have. Look at this link here:

RV-6 wide rings

 

These might be more likely on a wrinkle tube set up.

I haven't even had a chance yet to look at the motor, but I've used it a couple times and seems to hum along without any backlash or issues. I'll definitely check out the cork. I had no idea when I picked it up that the grey wrinkle was such a unique find. The paperwork has it assembled in November 1964.

 

And here are the pics of the OTA rings, which look like the smaller kind.

 

Guy

Attached Thumbnails

  • 20200326_101158.jpg
  • 20200326_101207.jpg

  • Bomber Bob and Garyth64 like this

#23 donstim

donstim

    Vostok 1

  • -----
  • Posts: 143
  • Joined: 13 Aug 2018
  • Loc: Seattle Area, WA USA

Posted 26 March 2020 - 07:01 PM

Nice find! I have a early to mid-1970's vintage RV-6 that was purchased for me new at that time when I was a high school-age astronomy buff. I had the mirror refinished last year, but haven't had it out since then. I've been meaning to, but it just seems like too much of a pain to set up compared to my larger, newfangled go-to SCT. Your nice picture of Jupiter makes me want to try, though!

 

I'm not familiar with the aluminum-looking rod on the opposite side of the OTA from the finderscope. What is that for?


  • Guy Earle likes this

#24 apfever

apfever

    Fly Me to the Moon

  • *****
  • Posts: 5,540
  • Joined: 13 May 2008
  • Loc: Colorado

Posted 26 March 2020 - 07:35 PM

It holds a camera mount.


  • donstim likes this

#25 Guy Earle

Guy Earle

    Vostok 1

  • -----
  • topic starter
  • Posts: 121
  • Joined: 19 Jun 2006

Posted 26 March 2020 - 07:50 PM

 

I'm not familiar with the aluminum-looking rod on the opposite side of the OTA from the finderscope. What is that for?

I wasn't sure either until a fellow club member, who owned one, recognized it as part of a camera mount.


  • donstim 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