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TAL-1 Newtonian

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#1 lwd

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Posted 27 October 2018 - 06:57 PM

I just snagged an older TAL-1 scope at my local Goodwill. This is the model with the drive motor, but the electrical adapter and controller is missing.

 

Any ideas as to where I can obtain one? Or what might work as a substitute? 

 

Thanks.


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#2 starman876

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Posted 27 October 2018 - 08:23 PM

I use to have. Very nice scope.



#3 lwd

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Posted 27 October 2018 - 11:24 PM

Yes, the engineering is really impressive.



#4 scopeboy42

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Posted 29 October 2018 - 08:43 AM

Try to find a used Vega drive corrector. They run off of a 12V cigarette adapter and plug into the TAL AC port. Much better than trying to use the original AC power supply.

 

Here is a photo of the one I use to own with the Vega attached to the pier. For some reason I keep selling off the cool scopes I have owned.

 

Good Luck!

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#5 Andy Howie

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Posted 29 October 2018 - 10:57 AM

Agreed on putting out a wanted ad for a Vega drive corrector. Lets you run off a DC battery and is palm sized. 

 

Another option is the APM(Germany) made drive corrector https://www.apm-tele...i1_3_397_1.html . Last time I looked, they still had some in stock.

 

Andy. 



#6 steviebee

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Posted 04 November 2018 - 04:42 AM

I was given the TAL 1M yesterday. It is still in its wooden crate. I have noticed it does not have a rack n pinion focuser. The focuser just screws in and out? I have never seen one like that. I t looks as though it can take 1.25" and 2" lens's, albeit a little slack. I have not set it up yet as I will have to wait till Thursday when I get off duty.

 

tal focuser.jpg


Edited by steviebee, 04 November 2018 - 05:08 AM.

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#7 Andy Howie

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Posted 04 November 2018 - 07:16 AM

Looks like a well built, after-market helical focuser. Drilling and tapping an extra hole for another thumbscrew should help take up any slack/play, if the bore has been machined a tad oversize waytogo.gif    


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#8 steviebee

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Posted 04 November 2018 - 07:44 AM

Thanks for that Andy. I am going to show my ignorance here. Do you just screw the focuser in and out to obtain focus. I assume that is what the 3 chrome bars are for. It has a very course thread on it.

 

Regards.

 

Steve.



#9 Bomber Bob

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Posted 04 November 2018 - 07:56 AM

Yes, those bars help you "spin" the focuser.  A couple of my scopes have helical focusers, and I prefer them for high power observing vs. rack & pinion.


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#10 steviebee

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Posted 04 November 2018 - 07:59 AM

Many thanks Bomber Bob.

 

 

Regards.

 

Steve.




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