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Craigslist, ebay and other Vintage Telescope Finds

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#6351 Allanbarth1

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Posted 11 November 2018 - 12:08 PM

I solved it all by using a different mount and making a bigger tripod.  lol.gif

 

attachicon.gif twins.jpg

 

-like a rock!

Very nice looking tripod. waytogo.gif

 

What species and size of wood did you use for that beauty? 



#6352 Garyth64

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Posted 11 November 2018 - 12:16 PM

I made that tripod out of Maple,  I also did another one out of Poplar.

The upper sections are 3' long and are just 1½" x 3/4".

The lower sections are also 3' long, and are 1½" x 1½".  They overlap 1'.

The large wood tray locks it all together, and the chain has a turnbuckle to keep things tight.  There's no twisting at all,  which is a problem in the smaller tripods.  It's just solid.

 

Actually very easy to make. 


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#6353 Pete W

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Posted 11 November 2018 - 12:45 PM

I solved it all by using a different mount and making a bigger tripod.  lol.gif

 

-like a rock!

I've studied your old post about the construction of your tripod...love it!   Unfortunately, doing this is beyond my skill set and tool supply, but it's nice to dream.  Constructing a wooden brace with an accessory tray is more up my alley.  

 

The weight idea is clever - a bag of rocks should be easy to "dig up."wink.gif   And, I gonna try the "leg wedges" to keep the round legs from wiggling.

 

Upon further study, the cone-shaped aluminum tripod feet were very wobbly, and the screws holding them onto the legs were as tight as they can be.  So, I filed off some of the wood at the bottom so that the aluminum cone can slip further up onto the legs, tapped them tight and reattached them.  It seems to have improved the "twisting" quite a bit.  

 

If only it will clear up.

 

Pete


Edited by Pete W, 11 November 2018 - 12:46 PM.

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#6354 Garyth64

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Posted 11 November 2018 - 02:35 PM

Pete,

 

The pieces can be purchased at Lowe's or etc.  They have oak, maple, pine, poplar, and maybe aspen.  I would use the harder woods.

 

The  1x2's, (3/4" x 1½")  can be purchased in 6' lengths, just cut them in half, and round one end.

 

The 2x2's, (1½"x1½") are already cut to 3'

 

Actually the hardest part is making sure all the holes line up for the bolts.  And I used SS for the hardware.  ¼x20  on the legs, and 5/16x24 for the hub.  Do one hole before the other.  (drill press really helps to keep things straight)


Edited by Garyth64, 11 November 2018 - 02:37 PM.

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#6355 Chuck Hards

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Posted 11 November 2018 - 02:35 PM

Don’t know if this helps, but the extension tube that came with my Monolux 4380 threads into the 36.4mm focused tube.  Perhaps you may find someone with an extra.

 

also, instead of a threaded extension, 1.25” extension tubes that insert into the Vixen adapter can be purchased.  A simpler but less elegant fix. 

 

https://agenaastro.c...223&q=extension

 

pete

 

Yep, that one is much like the modern ones only they are satin black anodized, and come in several lengths.  I just checked Adorama, which is where I bought one last time, and I can't find them there now.  So I wonder if the part is no longer made?  I've looked on Amazon as well as eBay and can't find a commercial listing any more, period.

 

I'll try and pics of my aftermarket ones sometime today.  One is on the Astro so I'll need to pull it off.

 

You tend to get too much droop with the slide-in 1.25" extension tubes, this is the biggest reason why people abandon the slider and go with the thread-in extensions.  It would be sad if they were no longer available.



#6356 Garyth64

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Posted 11 November 2018 - 02:49 PM

You tend to get too much droop with the slide-in 1.25" extension tubes, this is the biggest reason why people abandon the slider and go with the thread-in extensions. 

 

The chrome pipe trick worked great for me.  I added in different bushings in the focuser for the new pipe.  I have no sag at all, even all the way out.  I  was actually surprised.


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#6357 Bomber Bob

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Posted 11 November 2018 - 04:25 PM

I solved it all by using a different mount and making a bigger tripod.

 

Dude!  Those are GUN (Goto/Unitron/Nikon) sized legs -- I think I could swing from the hub and it wouldn't shift an inch.  Nice!


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#6358 Garyth64

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Posted 11 November 2018 - 04:52 PM

I solved it all by using a different mount and making a bigger tripod.

 

Dude!  Those are GUN (Goto/Unitron/Nikon) sized legs -- I think I could swing from the hub and it wouldn't shift an inch.  Nice!

They were part of  my inspiration.

 

(maybe I should make some and sell them)


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#6359 Bomber Bob

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Posted 11 November 2018 - 06:02 PM

maybe I should make some and sell them

 

I'd be interested.  My Polaris could carry my long fracs if the tripod had greater height, and was stable at that height...

 

Glass & brass I can deal with, but my Dad was the wood-worker.

 

GW GOOD DEAL...

 

Meade branded Towa 339 with rare Clock Drive --> https://www.shopgood...m/Item/60048623

GW will ship this one -- that's getting rare, too!  * You'll need the Mount, Finder, & Accessories (separate auction) --> https://www.shopgood...m/Item/60048940   But check the Eyepieces -- Nice Series 2 Orthoscopics!

 

B&L Criterion 4000 Kit w/ Case --> https://www.shopgood...m/Item/60051859   Looks 100% complete.  If I had an ETX-90 OTA, I'd snag it, and put the much better Mak on the much better fork mount...


Edited by Bomber Bob, 11 November 2018 - 06:19 PM.


#6360 Garyth64

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Posted 11 November 2018 - 07:30 PM

That Towa 339 looks brand new!  It's in Traverse City.


Edited by Garyth64, 11 November 2018 - 07:32 PM.


#6361 starman876

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Posted 12 November 2018 - 08:32 AM

I have made some wood tripods and it is very rewarding.  If you do not like the selection of wood at your local hardware store in most cities you can find exotic wood dealers.  For not much more you can get some interesting species of wood.  I have duplicated Unitron tripods from African mahogany.  They came out very nice.  If you are good with a table saw you should be able to make tripods easily.


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#6362 Tom Duncan

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Posted 12 November 2018 - 12:06 PM

It would appear the Goodwill auction for the Meade branded Towa 339 and the mount/EPs went unsold, no bids. I suspect someone informed them they should have been a single lot. 

 

Tom 


Edited by Tom Duncan, 12 November 2018 - 12:08 PM.


#6363 Tom Duncan

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Posted 12 November 2018 - 12:15 PM

Stephen/Stargoat, attached are photos of the round cardboard tag and the inspection sticker. What do they tell us?

 

Makes sense to me that the newer design scope is actually 10 years newer. The thinner legs, perhaps done in an effort to save a few bucks, might support the theory. 

 

Tom 

Attached Thumbnails

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  • DSC_9540T.jpg


#6364 G-Tower

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Posted 12 November 2018 - 12:25 PM

This one tells us it's from a cheap pair of binoculars and that some people are willing to part out everything.

 

 

https://www.ebay.com...mCondition=3000


Edited by G-Tower, 12 November 2018 - 12:26 PM.

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#6365 Steve_M_M

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Posted 12 November 2018 - 02:03 PM

This one tells us it's from a cheap pair of binoculars and that some people are willing to part out everything.

 

 

https://www.ebay.com...mCondition=3000

And $1.30 to "ship" it.



#6366 TAS

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Posted 12 November 2018 - 06:12 PM

Don’t know if this helps, but the extension tube that came with my Monolux 4380 threads into the 36.4mm focused tube.  Perhaps you may find someone with an extra.

 

also, instead of a threaded extension, 1.25” extension tubes that insert into the Vixen adapter can be purchased.  A simpler but less elegant fix. 

 

https://agenaastro.c...223&q=extension

 

pete

I did the same as Pete on a 6339A and a Tasco 7-TE5. Here is a picture of the 6339A with the extension. I needed two of the Orion 1.25 X 2 inch extensions to reach focus. I have since upgraded the rearmost extension to a BlueFireball 1.25 X 2" with compression ring. Badder Morpheus 9 & 17.5 MM provide exceptional views!

TAS

 

Draw Tube Replacement 1
 

 


Edited by TAS, 12 November 2018 - 06:20 PM.

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#6367 Augustus

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Posted 12 November 2018 - 09:21 PM

Just sniped an orange C90 Astro off eBay for $140.

 

https://www.ebay.com...872.m2749.l2649

 

How exactly does one power this thing in the field? I loaned out my PowerTank and having a cord of any sort for such a little scope seems like a nuisance.


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#6368 Bomber Bob

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Posted 12 November 2018 - 09:43 PM

Just sniped an orange C90 Astro off eBay for $140.

 

Wow -- way to go!!  

 

As for external power... that's why I've gone with battery-powered mounts.  My VW has 2 plugs in the cargo area, and I have adapters that turn those into standard grounded outlets, but don't use them much.


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#6369 Augustus

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Posted 12 November 2018 - 09:58 PM

Just sniped an orange C90 Astro off eBay for $140.

 

Wow -- way to go!!  

 

As for external power... that's why I've gone with battery-powered mounts.  My VW has 2 plugs in the cargo area, and I have adapters that turn those into standard grounded outlets, but don't use them much.

So I need an inverter and external battery?

 

I wonder if I could replace the motor with a DC powered one. Is that even possible?



#6370 Bomber Bob

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Posted 12 November 2018 - 10:03 PM

An external pack should have at least 1 standard / wall outlet.  I wouldn't modify the  mount.  I'd take the OTA off and put it on a Polaris mount with battery drive...



#6371 Terra Nova

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Posted 13 November 2018 - 08:57 AM

So I need an inverter and external battery?

 

Typically yes. A good 12VDC to 120AC inverter will produce the proper waveform to consistently power the motor. Otherwise, you run the risk of burning the motor out. Plug the inverter into your automobile’s 12V outlet or a 12V external battery like a jump starter battery (or the more expensive power tank). Plug your Celestron’s AC power cord into the inverter. It’s very simple, and once you buy a good inverter you can use it with many things.



#6372 Chuck Hards

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Posted 13 November 2018 - 09:16 AM

Thanks Chuck. I did take a good look at my 10TE last night and I see the threads you are talking about on the outer focuser tube. If the vixen adapter will screw into those threads then they are 36.4mm, this much I know. What I can't find, anywhere on the internet, is an extension tube that has 36.4mm male threads on one end, to thread into the focuser, and 36.4mm female threads on the other end, to allow the vixen adapter to thread into. The threaded extension tube is what I need help with, where can I get one of those?

 

I've looked everywhere but it now appears that Vixen has discontinued the thread-on extensions for the 1.25" eyepiece holder.  I can only find the 2" Vixen extensions now.

 

So, this is a disappointment.  Those who have them, hold onto them.  It doesn't look like they are available anymore.  It's been 8 to 10 years since I last purchased one.


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#6373 Bomber Bob

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Posted 13 November 2018 - 09:26 AM

Those who have them, hold onto them.

 

Finally!  Being a Pack Rat may pay off...  It's like I'm the Johann of old Vixen junk quality-made accessories...


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#6374 Defenderslideguitar

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Posted 13 November 2018 - 10:43 AM

I've looked everywhere but it now appears that Vixen has discontinued the thread-on extensions for the 1.25" eyepiece holder.  I can only find the 2" Vixen extensions now.

 

So, this is a disappointment.  Those who have them, hold onto them.  It doesn't look like they are available anymore.  It's been 8 to 10 years since I last purchased one.

Thanks for the update       

I didnt want to like   what seems like bad news  i.e.  they arent made anymore...... I suppose one could run a want add    gladly pay a bit more to get one.....

 

There seem to be alternatives for folks who are way more handy than me...

 

Finally,   there must some optical drop off in using a  .965 to 1.25 adapter  that escapes the inexperienced ( me )  or folks would not look for better alternatives   right?

 

 

EDIT    I tracked back in the thread and found this

.....Posted 11 November 2018 - 02:49 PM

 

You tend to get too much droop with the slide-in 1.25" extension tubes, this is the biggest reason why people abandon the slider and go with the thread-in extensions.

The chrome pipe trick worked great for me.  I added in different bushings in the focuser for the new pipe.  I have no sag at all, even all the way out.  I  was actually surprised.

 

still the .965 to 1.25 must be less prefered?


Edited by Defenderslideguitar, 13 November 2018 - 10:51 AM.


#6375 Bomber Bob

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Posted 13 November 2018 - 10:55 AM

Don JW receives another request for a Vixen 36mm thread-in extension tube (on his daughter's wedding day):

 

JW as Godfather.jpg

 

https://www.youtube....h?v=LwJdCfofxyY


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