1966 Tasco 9TE-5
Posted 07 February 2004 - 12:01 AM
Tasco Astronomical Telescope Japan (1966)
Model No. 9TE-5
Reg. No. 59234
Does anyone have experience with or know something about this scope?
Posted 07 February 2004 - 12:02 PM
Posted 07 February 2004 - 12:13 PM
Does anyone know where I can get a replacement lens - about 2-1/2"? I read that Apogee might have them so I sent an email today.
As well, can I replace the .965 diagonal with a 1-1/4" so I can use my eyepieces or is there an adapter available?
Any help would be appreciated to get this puppy up and running.
Posted 07 February 2004 - 12:28 PM
Does the focus tube have an eyepiece adapter that screws into it? On my Sears Discoverer, the focus tube was threaded and was 34.6mm diameter. I got a Vixen 34.6mm to 31.7mm adapter from Adorama so I can use 1-1/4" accessories now. If that doesn't work, you'll probably need to use a hybrid diagonal.
Posted 07 February 2004 - 12:40 PM
Posted 07 February 2004 - 01:13 PM
Yes, I believe so - would this be that adapter? If I get the adapter, does that mean I must get a new diagonal? Can I get an adapter for the eyepiece end of the diagonal instead?
Posted 07 February 2004 - 01:24 PM
There are about 4 chips, the largest is about 10mm across while the others are about 1-2mm, all are from the edge out. There are two lenses side by side - the other appears to be in perfect condition. I'm not up to speed on optics so I wouldn't be able to tell you if the coatings are good or not. Would pictures help?
The one and only eyepiece is dirty so I will throw caution to the wind and attempt to take it apart and clean it.
Posted 07 February 2004 - 01:29 PM
Posted 07 February 2004 - 03:25 PM
I can't quite tell from the picture. Try measuring the inside diameter of the focuser tube to see if it is 34.6mm. Here's the adapter I got:
Vixen Standard 1.25" Telescope Eyepiece Adapter, #3720
If it works, you would need to get a 1-1/4" diagonal. Your other choices would be to get a .965" to 1-1/4" hybrid diagonal or try to find some .965" eyepieces on Astromart as Tom suggested.
Posted 07 February 2004 - 03:34 PM
The inside diameter of the focuser tube looks like about 25mm (.965"), quite a bit less than 34.6mm. From the picture above, you can see the entire adapter is about 30mm.
Posted 07 February 2004 - 03:57 PM
Posted 07 February 2004 - 04:11 PM
Nice to hear someone else has "an old Tasco". Although the Tasco may not be up to par, the two binoculars certainly were!
Posted 07 February 2004 - 05:54 PM
Jim, I must have misread, but if you want a .965 to a 1.25 adapter, won't you need the 1.25" portion to be long enough to accept the barrel of your 1.25"EPs? Excuse my ignorance.
Posted 08 February 2004 - 01:24 PM
You're right! That would effectively change the focal length and might not allow some eyepieces to come into focus.
I put the current diagonal from that scope up for trade on Astromart and another ad looking for a .965" to 1-1/4" diagonal.
Posted 08 February 2004 - 01:41 PM
I'll post some pics of the scope when I get a chance - it looks so much better now that its been cleaned.
Posted 08 February 2004 - 01:54 PM
If you don't find a hybrid diagonal on Astromart, you could try Hands On Optics. They have lots of new and used items not listed on thier web page. I bought some good 0.965" eyepieces from them. I think Apogee and Orion also sell them new for around $25.
Posted 10 February 2004 - 04:27 PM
I found a brand new Sky Instruments mirror hybrid diagonal from a company in Eastern Canada for $30CDN ($22US) shipped and a new Meade 60mm 700mm fully coated complete objective lenses and cell for about $16US shipped from the Telescope Warehouse in Las Vegas - bought through Ebay.
Brand new Meade product. 60mm F11 (700mm focal length) Telescope objective lens with lens cell and dewcap. This is a quality coated glass air spaced achromatic lens that is used in many Meade refractor telescopes. You can use this to make your own telescope or replace a used or broken lens in your scope. If your scope is marked D=60mm and F=700mm this lens will replace it."
Posted 10 February 2004 - 04:55 PM
Posted 10 February 2004 - 06:15 PM
Posted 10 February 2004 - 10:04 PM
Let's see now, $5CDN for the scope, $30CDN for the diagonal and about $21CDN for the objective = $56CDN ($42US).
But if I sell the orignal .965" diagonal and eyepiece, I can perhaps recoup around $10-20.
But that's not all - I found a college level Bushnell microscope from the late 60's for $20 and have paid a local microscope technician another $20 to clean, tighten and regrease the scope. He also threw in a box of research grade slides.
The scope came in a wooden box with 2 slide out trays; one that holds 3 eyepieces and the other holds 3 specimen jars. It's scratched up and needs a new hasp and hinges, but I should be able to sand and varnish to look like brand new.
We brought it home and it works great. My son spent the whole afternoon going in and out of the house looking for things to look at.
I'll post some pics of both "scopes" when I get the chance.
Posted 10 February 2004 - 10:25 PM
Posted 11 February 2004 - 12:41 PM
Posted 11 February 2004 - 06:29 PM