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Very unusual Tasco Terrastro 50/600

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#1 CharlieB

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Posted 02 April 2013 - 09:08 AM

This scope arrived yesterday and I was stunned by its build quality. I have fives other 50mm scopes including two other 50/600 Tascos (bothe 66-TE's). While this scope outwardly resembles the 6T and 66-TE, it is several cuts above these scopes. Its build is every bit the equal, or maybe even better, than my Unitron 105 (which it resembles a great deal). I have never seen one of these scopes before, but there must be more out there somewhere. I hope you all don't mind if I post a lot of photos.

I'll start with the case, which is also in excellent shape.

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#2 CharlieB

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Posted 02 April 2013 - 09:09 AM

Box tag. Interesting lettering for Tasco.

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#3 CharlieB

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Posted 02 April 2013 - 09:10 AM

Contents of the box, minus the accessories. The block of wood holding the fork doesn't appear to be original.

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#4 CharlieB

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Posted 02 April 2013 - 09:12 AM

The assembled scope. The peep sights work very well. The pull-out focuser is very much like the Unitron 750.

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#5 CharlieB

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Posted 02 April 2013 - 09:15 AM

This scope is significantly heavier than the 66TE. The tube is thicker and the focuser is much heavier. It focuser also threads into the tube - something I've not seen in any Tasco 50mm. The chrome is in superb condition.

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#6 terraclarke

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Posted 02 April 2013 - 09:17 AM

Cute little scope. I like it. But I am still holding out for a little U127. The focus on your Tasco in fact seems to function in the same way as the one on the U127. BTW, I wasn't aware of the U105 unless it was one of the guide scope series?

#7 CharlieB

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Posted 02 April 2013 - 09:18 AM

The inner sleeve is threaded into the focuser and is solid, heavy brass. There is no slop at all in the sleeve.

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#8 CharlieB

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Posted 02 April 2013 - 09:23 AM

Cute little scope. I like it. But I am still holding out for a little U127. The focus on your Tasco in fact seems to function in the same way as the one on the U127. BTW, I wasn't aware of the U105 unless it was one of the guide scope series?


Here's the 105.

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#9 CharlieB

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Posted 02 April 2013 - 09:25 AM

Beautifully machined knobs that need a spanner.

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#10 CharlieB

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Posted 02 April 2013 - 09:27 AM

Even the wing nuts are wrinkle finished and with stainless steel bolts that are threaded on each end.

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#11 CharlieB

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Posted 02 April 2013 - 09:27 AM

Bolts.

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#12 terraclarke

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Posted 02 April 2013 - 09:28 AM

That's a pretty little Uni (your 105). Right in between the 127 and the 114. 50x700?

#13 CharlieB

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Posted 02 April 2013 - 09:30 AM

More machined knobs for the yoke.

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#14 Dave M

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Posted 02 April 2013 - 09:31 AM

Nice little scope.. :waytogo:

#15 CharlieB

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Posted 02 April 2013 - 09:32 AM

Pretty clean objective.

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#16 CharlieB

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Posted 02 April 2013 - 09:33 AM

Unusual (for a Tasco) cell. The top unscrews.

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#17 CharlieB

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Posted 02 April 2013 - 09:34 AM

to reveal...

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#18 CharlieB

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Posted 02 April 2013 - 09:35 AM

a cemented doublet (which was installed backwards).

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#19 CharlieB

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Posted 02 April 2013 - 09:36 AM

Eyepieces of unknown manufacture.

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#20 Rich (RLTYS)

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Posted 02 April 2013 - 09:36 AM

A most interesting telescope. I particularly like the sliding focuser.

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#21 CharlieB

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Posted 02 April 2013 - 09:37 AM

Erecting prism - the only piece that has been broken.

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#22 CharlieB

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Posted 02 April 2013 - 09:38 AM

Diagonal - bakelite and nice chrome.

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#23 CharlieB

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Posted 02 April 2013 - 09:39 AM

The whole enchilada. There appears to be no provision for a safety chain, but it doesn't really need it.

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#24 CharlieB

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Posted 02 April 2013 - 09:43 AM

Original instruction sheet. I would welcome any insight as to the manufacturer of this scope. I haven't found a similar scope in any of the available online catalogs. I don't think it's a Royal Astro product, as I have a 500 RA from around the same time (late 50's). I don't think Tasco imported scopes before 1955 as they started the business in 1954 importing fishing gear. So this scope probably dates between 1955 and 1958. The original owner had it as a boy and he was born in 1945.

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#25 CharlieB

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Posted 02 April 2013 - 09:47 AM

Yes, it's very smooth and has the fine focus mechanism just like the Unitron 750. My 105 has the coarse focus tube pull out and the fine focuser stays connected to the tube.






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