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Orange C-8 #135 due today!

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#26 tim53

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Posted 09 March 2010 - 08:02 PM

The 1 1/4" visual back looks modern, though it says "Japan" instead of China or Taiwan on it. (I can't remember but think the one that I bought for my 9.25" says Taiwan).

-Tim.

#27 CHASLX200

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Posted 09 March 2010 - 09:13 PM

A little paint and it will look like new.

Chas

#28 karen2006

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Posted 09 March 2010 - 09:28 PM

Tim,

I'm glad to see where this C-8 ended up at. I was bidding on it to. Glad to see that it went to someone who knows about telescopes. Keep us updated on the work.

#29 tim53

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Posted 09 March 2010 - 09:37 PM

Will do!

First thing I think I'll try is cleaning it up with some solvent. Think mineral spirits would be a good starting point? I don't want to risk damaging the paint if it's salvageble underneath the grime.

Then, probably regreasing the baffle tube would be a good next thing.

It's really windy, still, so I don't plan on taking it outdoors tonight. And tomorrow night I'll be getting ready for the mirror class. Flying out Thursday morning.

-Tim.

#30 JamesE

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Posted 09 March 2010 - 10:40 PM

Hi Tim,

Great score! I was eying that up too.

I know this is going to sound silly but......there is silicon spray, used to lubricate aluminum window panes, that I have used to get grime off. I first spray with the silicon and rub with a cloth, after all the grime is off, then I spray with a foaming window cleaner. It works well for me.

Cheers,

#31 tim53

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Posted 09 March 2010 - 11:06 PM

Excellent suggestion, James!

#32 Datapanic

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Posted 09 March 2010 - 11:12 PM

You can also try dish soap, 409 and non-abrasive hand cleaner to get the gunk off of Mr. Tinky.

He's a nice find, and should restore well!

#33 Fred Ley

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Posted 10 March 2010 - 06:05 AM

If memory serves me correctly, without pulling out my old Sky & Telescopes, the v-shaped base that the instrument is on was depicted in Celestrons old advertisements in the early 70"s that were on the back cover of S&T.
Now is the time to place bets, hmmm..., as to when you will complete the restoration. I am certain that everyone is waiting for that day. Perhasp you can keep sending updates as you restoration proceeds.
Enjoy the telescope.

#34 Greg Keys

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Posted 10 March 2010 - 10:11 AM

Dish soap goes a long way. If you look at my post labeled Restoration Project, that is just with dishsoap. I also find that a little gizmo called a Sonic Scrubber helps a lot. You can find it in most grocery stores in the cleaning isle. Basiclly it is a handheld scrub brush with a battery driven vibrating head. I use the attachment with what looks like tooth brush bristles.

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#35 Greg Keys

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Posted 10 March 2010 - 11:18 AM

You know, that label - KBEW - made me think right off of part of a ham radio call sign. A lot of ham operators labeled there stuff with a call sign and nickname.
The only reference to kbew I can find is radio station KBEW - AM owned by a Paul Hedberg in MN back in 76

#36 tim53

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Posted 10 March 2010 - 11:25 AM

Greg:

Interesting! I'm going to try to read the label info that shows up under this labelmaker label, and see if I can make any sense of that. ...probably going to be next week before I can get to it, though.

-Tim.

#37 tim53

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Posted 10 March 2010 - 11:31 AM

Well, the only results for "tinky" that I found via a google search weren't all that flattering.

Best was nickname for Tinkerbell. Worst was... never mind!

-Tim.

#38 clamchip

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Posted 10 March 2010 - 12:25 PM

Glad for you that it arrived safe Tim. You might try Tuff Stuff, It's a automotive airasol cleaner, works great on viynl upolstry, not too harsh. I like Windex but I would watch out if you have that rubberized early paint.

That black plate on the back of the rear cell is interesting, that is where the concentric focuser would mount on the very first orange C8. They only made 125 concentric focus C8's before deciding it was to expensive to manufacture. Yours must of been using up the last of that model before the one we know today went into production.

Robert

#39 tim53

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Posted 10 March 2010 - 12:34 PM

I wonder how many of these, past number 125, had this transitional backplate on them? At least 10, of course!

There's also no boss in the cell casting for the focuser knob - the black thingy is screwed on (and the holes for the screws are too big, as the countersinks cut into the outside edge).

-Tim.

#40 clamchip

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Posted 10 March 2010 - 02:22 PM

Not much info, but something:

#41 clamchip

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Posted 10 March 2010 - 02:23 PM

2

#42 tim53

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Posted 10 March 2010 - 02:56 PM

Neat!

Is that from Piekel's "book?" I need to order that.

Does anyone talk about sources for the paint? I doubt mine can be cleaned up enough to look truly great, so if I have to repaint it, I'd like to get as close to original as possible.

-Tim.

#43 DAVIDG

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Posted 10 March 2010 - 03:07 PM

Tim,
My club has a C-8 that has the center focusing ring. I believe the serial number is 119.
As for the paint, your does not have the standard power coat finish that we know how as the "classic" Celestron orange. The material on yours and my clubs 'scope was once a Velvet textured rubberized finish. Some of what looks like dirt on the paint is actually a dark green primary coming thru.
Many years ago I saw a C-8 that also had the center focusing ring but was painted with a dark green velvet finish. The owner stated it came that way from Celestron that way and said that Edmund Scientific had one on display in their showroom that was also painted the same.
Another interesting feature is the glass used to make the corrector. On our clubs unit it looks to be optical BK-7 since it is "water white" and a little thicker then newer C-8s.

- Dave

#44 clamchip

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Posted 10 March 2010 - 03:35 PM

Yes from Robert's book. I have only scratched the surface but I'm sure there is something on paint. It is probably one of the best books I have bought on any subject. In CD form and almost 2000 pages so reading it is a life long project.

Robert

#45 jimarshall

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Posted 10 March 2010 - 04:21 PM

http://www.cloudynig.../2159146-C8.jpg

Tim,
Here is a picture of my old orange tube C-8 #28, which came with a table top stand. I drilled an extra hole in the table top mount so it could be bolted to a tripod. There were two latitude adjusters on mine...one on each side of the bolt. I replaced one of them with a small turnbuckle so latitude adjustment would be easier. I have to push forward and turn on the RA knob in order for mine to turn without slipping; it was that way when I bought it, and so I think that is normal. Please keep us updated with your cleanup project as my paint is in pretty bad shape as well.

Quote
Latitude adjuster. Is this thing original? It looks as though it would be hard to adjust with the scope on the wedge. The wingbolts sure don't look original. What was?

Quote
RA slow mo question.

It appears to be some sort of friction gizmo, not a spur gear? Because it slips a lot. ...either that or most of the teeth are stripped off!

#46 tim53

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Posted 10 March 2010 - 04:39 PM

Jim:

That's a great idea. I do have a tripod and wedge with my ~1980 C-8, though. Most of the time I put that C-8 on either my EM-10 or NJP mount, though. Presently, it's in the storage case while I've been using the Cave 8" f/7 and my Kludge 6" f/10.3 Newts for imaging Mars.

Robert: I'll have to check out Bob's book, too.

Dave: I wonder if my local autobody shop could find matching paint? He does antique car restorations, but I was surprised he couldn't tell me where to find wrinkle black paint for the Cave. Turned out Mac's Antique Auto Parts sells it for really reasonable prices, though.

But that Celestron paint isn't much like anything else I've ever seen!

-Tim.

#47 cherokawa

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Posted 10 March 2010 - 04:54 PM

Tim,
I'm looking at a CL ad for a Celestron G8 scope, which is reasonably priced at $450 (along with CG-5 mount, minus tripod). Google turns up precious little info on G8 - is it similar to your C8?

Chero

#48 Tarzanrock

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Posted 10 March 2010 - 04:55 PM

Hi Tim:
Nice new scope. I trust that you will be bringing it to Mt. Pinos in August for the "classics" star party. As much as I enjoyed looking through your Jaegers I think that I'll like this one even better since I have one a bit like it.
Best regards,
Bill

#49 tim53

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Posted 10 March 2010 - 05:02 PM

Chero:

Is it an orange tube on a CG-5? If so, they're pretty far apart in age.

Bill:

I may actually have a conflict during the first week of August - a meeting in Montana that I need to go to. Hope not, though.

It might be fun to bring along the C-8 and the Cave, if I do get to go, though.

-Tim.

#50 cherokawa

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Posted 10 March 2010 - 05:11 PM

Tim,
It's not orange, but black in color. Model #11023.


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