I quoted the "the secondary is factory set and should not be adjusted" from the RV6 user manual to the guy who noticed my poorly aligned secondary last year....
Thanks for all the replies. The secondaries have been properly adjusted and the scopes are working well. I just couldn't believe the trouble I was having and...
Hi Guys: Few months back you helped me figure out (roughly)when I bought my 4" based on price of same at the time. I recently came across 1950's S&T's that...
Hi Guys/gals: Regarding my 1955 4" Dynascope: may I add another question? Were the ep's then 0.965" or 1.25". Just wondering and i can't recall- too long ago....
Dear Bill, The eyepieces on my 4" Dynascope, circa 1964, were 0.96. I'm told that they shifted to 1.25 shortly thereafter. The 4" remains an extraordinary...
... that they ... telescope. ... HI Erik: Thanks Erik, I figured as much as in those "days" 0.965 ep's were more prevalent. Re Unitron...I looked over my old...
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jrusho
jrusho@...
Sep 6, 2005 12:25 am
Bill, The 4" deluxe? (eq. mount & drive, tubular tripod legs) that I have borrowed has a 1.25" focuser with integral single stalk diagonal holder. John Rusho ...
Oops. I didn't catch that when I wrote the article on the history of Criterion. I'll have to go back and fix it. So the Deluxe 4" had the bigger focuser? -Rik ...
5599
jrusho
jrusho@...
Sep 6, 2005 12:19 pm
Well, maybe oops for me too. That "Deluxe" was my choice of word, not necessarily Criterion's. There is no serial # on this scope, and I don't know when it was...
Hello all, long-time lurker de-cloaking here... I am an avid amateur star-gazer currently shopping around for a good used scope. My research left me with two...
I don't have any experience with either mount (I have all original RV-6 optics, but not the mount), but I think the TAL mount may be more robust and amenable...
rv6-great optics mount might need tweaking-and not real stable-cost should be less than the tal- better mount on tal-orion sells a good 6 in.f8 to-and keep an...
5603
jrusho
jrusho@...
Sep 8, 2005 12:44 am
Rik, Regarding the 4" Criterion eyepiece dia., the one I have borrowed is the Deluxe Model K-2A. It exactly matches the photo in the ad listed on the homepage...
Glenn, I think the RV-6 sold for about $199 which in 1950's dollars is I'm guessing somewhat less than $2000 in today's dollars. Conversely, I think a...
John – If you look in the files section of the Yahoo Dynascope website, you will find a folder with the "4in Dynascope Accessory Manual". The Page02.jpg...
5606
jrusho
jrusho@...
Sep 9, 2005 3:19 am
Bob, Thanks for the info - I didn't think to go into the files after finding the K2A. Interesting that this "deluxe" looked like the RV-6 as to the tube ...
i have a criterion telescope for sale it is approx 7" diameter with 50 " body has stand and electric motor drive eyepiece and sighting scope are with it...
-- Hi Ron, Can you call me or send an e-mail to me at alpaslow@... in reguards to your 6 inch telescope for sale? Or phone (412) 969-8000 cell anytime. ...
Hey folks; Some time ago, we had a brief discussion regarding music to observe by (At least I think it was this group). I believe it was back during the ...
Bach Beethoven, Buffett, and the Beetles. You can't go wrong. Holtz: The Planets Pink Floyd also work. Walter in Savannah ... observe by ... during the ... ...
They played a video of a Pink Floyd concert (or maybe more. I wouldn't know) at the Prairie Grasses Star Party as the "cloud out" entertainment in the dining...
The repository mentioned was the DRONE DOWNLOAD PROJECT. You can find it here: http://www.darkduck.net/store_ddp.html Tom ... observe by ... during the ... ...
amen brother! Travis Whitlow <travisedwin@...> wrote:They played a video of a Pink Floyd concert (or maybe more. I wouldn't know) at the Prairie Grasses...
A couple of years ago we organized a binocular astronomy event called "BinoTullooza" here in Utah, featuring music from Jethro Tull. We warned attendees ahead...
It was Pink Floyds "Meddle" that led me, in the early 1970s, to work like Tangerine Dream, John Serrie, Steve Roach, Vidna Obmana, Harold Budd, Brian Eno,...
I highly recommended this if your into the more electronic ambient. Very good stuff. -Rik ... The repository mentioned was the DRONE DOWNLOAD PROJECT. You can...
I have to agree. I never play music at a public starparty. The taste can be too individual. But your quartets are definately nice. -Rik ... Which leads to what...
Try the "William Tell Overature" at a star party..it really draws people to look through your scope...for laughs, make sure it is a Astro-Can. The power of...
If you want the opinion of a slightly younger astronomer, when observing on my own, I prefer some good folk or folky rock (like Simon & Garfunkel, Great Big...
Yeah, and you could use Also Sprach Zarathustra while you pull the covers off. -Rik ... Try the "William Tell Overature" at a star party..it really draws...
