7 replies to this topic

[martadon]

Help needed please.

I bought a Tasco 10K Vintage Achromatic Refractor Telescope 80/1200mm in an auction without looking to closely.

Box was rotten, not a proble I built another.

Main problem is it is missing the optic and hood as can be seen in the photo.

I take it finding one would be near impossible so would a chinese 900mm do the job instead?

Go gentle I'm a beginner to the hobby. Or I will be when I can get this vintage telescope up and looking.

[ccwemyss]

That's a Towa 339, which was sold under many different brands. They are fairly common, and well-regarded for optical quality. Somebody here might have a spare objective.

 

You could go with a Chinese objective, but will want one with a 1200mm focal length unless you are prepared to cut the tube length by 25%. You would also need to 3D print or machine a cell to hold it, with three-point control for tilt so that you can get it properly collimated. 

 

Chip W.

[deSitter]

Well this is sort of like a car with no engine.

 

Maybe it is in the box? The cell assembly is missing. It threads on the open end of the tube.

 

The only hope is to find a new cell and objective lens assembly. This scope is a Towa model 339.

 

-drl

[DouglasPaul]

Yikes, what is in the box?

[martadon]

Yikes, what is in the box?

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[martadon]

That's a Towa 339, which was sold under many different brands. They are fairly common, and well-regarded for optical quality. Somebody here might have a spare objective.

 

You could go with a Chinese objective, but will want one with a 1200mm focal length unless you are prepared to cut the tube length by 25%. You would also need to 3D print or machine a cell to hold it, with three-point control for tilt so that you can get it properly collimated. 

 

Chip W.

Thank you, if anyone out there does have the correct objective please reach out

[DouglasPaul]

Thank you, if anyone out there does have the correct objective please reach out

You could post in the "ask away" thread pinned at the top of this forum and put a wanted ad in the classifieds. Those two things would greatly improve your odds of finding one. (I'm not sure you can post in the classifieds yet, maybe ask a mod if not)

[deSitter]

I wish I had a Towa 339 to donate. Unfortunately there is not a realistic alternative, because of the need for the cell. That is likely specific to the scope.

 

-drl