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1965 Cave 10" f/16 Dall-Kirkham OTA

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#1 tim53

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Posted 03 March 2011 - 11:39 AM

Okay, here are the pix I took this morning while making coffee.

Tubes: Fiberglass tube for the Cass. Red guy inside is aluminum Edmund tube. On right is 60mm Mayflower guidescope

-Tim.

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  • 4423629-Tubes.jpg


#2 tim53

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Posted 03 March 2011 - 11:41 AM

I thought the tube was double walled at the ends, but those are the original aluminum end rings. Seller painted the whole tube white. It looks good enough, but I think I'll strip and polish the end rings.

-Tim.

#3 tim53

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Posted 03 March 2011 - 11:43 AM

Here's the primary. Coatings are good enough for star testing, so I'm going to try to mount this thing Saturday and take it around the block for a spin.

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#4 tim53

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Posted 03 March 2011 - 11:47 AM

Box containing secondary (3"!!), mirror protected with tissue inside baffle; Finder and guidescope rings and screws, wrinkle black 1 1/4" diagonal (don't remember if mirror or prism, probably prism though), box of eyepieces in upper right corner, and Edmund 4.25" mirror, cell, and focuser/single stalk secondary.

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  • 4423655-2ndary_rings_edparts.jpg


#5 tim53

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Posted 03 March 2011 - 11:49 AM

Primary cell, backplate (with baffle out of sight), adjustable base and 1 1/4" Unitron focuser (I thought this was a 2", but it's really 1 1/4")

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  • 4423660-Cell_bkplt_focuser.jpg


#6 tim53

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Posted 03 March 2011 - 11:57 AM

Astrola 50mm finder (I've never had one of these!).

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#7 tim53

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Posted 03 March 2011 - 11:59 AM

Volcano top eyepieces: 26, 12 and 4mm. No other writing on them. I'm assuming that the 12 and the 4 at least are orthos? Be nice if the 26 is too!

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  • 4423687-Eyepieces.jpg


#8 clintwhitman

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Posted 03 March 2011 - 12:18 PM

Tim if thats the 12 that Cave sold it might be a lulu. I have a 12mm Astrola marked ortho that came with the 1965 Cave that really stands out. Scary good eyepiece. Really nice DK what year do you think it is?
Here is that old 8" we didnt get!! LOL

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#9 tim53

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Posted 03 March 2011 - 01:00 PM

From the title of the thread, seller bought it from Cave on Anaheim Street in 1965.

His ad says it says "TLI 761 #2" on the edge of the mirror, and Robert wondered if it was a Tinsley mirror.

I got home late-ish last night, had dinner and went to bed. This morning, I shot those pics and emailed them to myself while I hurried off to work. So I haven't looked at the writing on the mirror to see if there's anything else there.

-Tim.

#10 tim53

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Posted 03 March 2011 - 01:02 PM

It always seems weird to me when you see one of those with rotating rings. I guess you can move the finder and guidescope eyepieces around that way, but you wouldn't need to rotate a Cassegrain. And not rotating the main scope won't screw up accurate pointing if the optic axes aren't quite aligned with the mount's axes.

-Tim.

#11 tim53

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Posted 03 March 2011 - 01:03 PM

This one was mounted originally via two bolts right through the tube to mount it to the saddle. There were no rings around the main tube.

-Tim.

#12 gelkin

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Posted 03 March 2011 - 01:14 PM

What finder is on your 8" lt wt deluxe?

#13 apfever

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Posted 03 March 2011 - 01:19 PM

TIM,

PM sending. Need some opinion.

Neil

#14 tim53

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Posted 03 March 2011 - 01:49 PM

What finder is on your 8" lt wt deluxe?


My 8" has the same finder that both of my Optical Craftsmens have - a really nice 8x50 with a helical focuser (that's buttery smooth if the grease is new).

-Tim.

#15 tim53

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Posted 03 March 2011 - 01:55 PM

TIM,

PM sending. Need some opinion.

Neil


reply sent!

#16 gelkin

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Posted 03 March 2011 - 02:13 PM

Tim

My old high scool has a Cave 12" cass. It had a huge mount like 2" shafts on a pier. Unfortunatly it was mounted on the roof (heat currents) on a slab that you also stood on. Any movement at all vibrated right through it. Sure was pretty though. I hear no one even uses it anymore.

Gerald

#17 tim53

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Posted 03 March 2011 - 02:18 PM

Gerald:

See if they want to sell it?? Maybe offer to give them a Meade or Celestron SCT in exchange for it?

-Tim.

#18 gelkin

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Posted 03 March 2011 - 02:36 PM

Ever since i heard it wasn't beeing used i've been dreaming of carrying it out of there one piece at a time. Down the spiral stairs. :praying: :praying: I could do it though.
The pier would be tough wouldn't it.

Gerald

#19 tim53

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Posted 03 March 2011 - 03:03 PM

The pier would be tough wouldn't it.


Not if you took a jack hammer and drew a circle around it in that slab. Then, just let it fall to the floor below and hand truck it from there! :grin:

-Tim.

#20 tim53

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Posted 03 March 2011 - 10:39 PM

Here's the number on the edge of the mirror. Nothing else on it.

-Tim.

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#21 Nave

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Posted 03 March 2011 - 10:51 PM

The Hawaiian Tulley and now this Cave.

Really, really great stuff, Tim.

#22 tim53

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Posted 04 March 2011 - 12:25 AM

It is pretty neat, but the more projects I acquire, the less get done! :o :ooo:

#23 Datapanic

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Posted 04 March 2011 - 12:44 AM

Could it be Serial Number 2?

#24 clamchip

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Posted 04 March 2011 - 02:45 AM

Anything on the secondary?
TLI has got to be Tinsley Laboratories Inc.

Sure is nice you have the finder and guidescope.

Robert

#25 tim53

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Posted 04 March 2011 - 12:18 PM

Interesting question about the serial number, Dan. I suppose it might have been the 2nd Cass that Cave sold. 1965 was a long time ago, after all, and they mostly made Newts.

Robert: I haven't had a chance to look at the back of the secondary, as the seller had put it back on the spider with the 2ndary baffle. Got like 3 telecons today and a big deadline this afternoon, so I won't be able to look into this until tonight or tomorrow morning.

-Tim.


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