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Equipment Discussions >> Equipment

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csa/montana
Den Mama
*****

Reged: 05/14/05

Loc: montana
Re: Telrad alternative suggestion for dobsonian new [Re: SKYGZR]
      #6036993 - 08/20/13 05:46 PM

Quote:

it's just to get one close ayway..




I find that using the Telrad with charts with the Telrad circles, I get right on the target, unless there are few stars around the target in order to place the circle; then I can use my RACI.


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Wmacky
Carpal Tunnel
*****

Reged: 11/24/07

Loc: Florida
Re: Telrad alternative suggestion for dobsonian new [Re: SKYGZR]
      #6037189 - 08/20/13 07:33 PM

I think it's time for a Telrad update. A little less plastic would work for me.

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gravitino
sage
*****

Reged: 04/28/09

Loc: Evanston, IL
Re: Telrad alternative suggestion for dobsonian new [Re: David Knisely]
      #6037473 - 08/20/13 11:13 PM

Quote:

Here is how the Telrad (with its orange dew shield) and my 9x50 RACI finderscope fit on the front of my XX14i 14 inch f/4.6 Newtonian:




David,
Is that the Astrosystems Telrad dew shield? Where did you get an *orange* one?!!

Clear skies,
-- Shane


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Jon Isaacs
Postmaster
*****

Reged: 06/16/04

Loc: San Diego and Boulevard, CA
Re: Telrad alternative suggestion for dobsonian new [Re: csa/montana]
      #6037491 - 08/20/13 11:29 PM

Quote:

Quote:

it's just to get one close ayway..




I find that using the Telrad with charts with the Telrad circles, I get right on the target, unless there are few stars around the target in order to place the circle; then I can use my RACI.






If the skies are dark, then most often, a Telrad is all that is necessary.

If there is insufficient room for the Telrad, in my experience, a Rigel can be used but with the increased parallax error and without the 4 degree ring, I did not find it as effective as the Telrad.

Jon


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m1618
super member
*****

Reged: 09/18/12

Loc: Orange County - CA
Re: Telrad alternative suggestion for dobsonian new [Re: gravitino]
      #6037501 - 08/20/13 11:38 PM

So Telrad it is. Mine came in the mail today. Impressive. I do think that the magnet strip idea is great. They better have strong ones at the hardware store.

Yes I will be sure to wrap my scope with a sleeping bag.
Telrad does need a makeover. The components inside are very radioshack. A lot of excess plastic. Wondering what the purpose of the big battery compartment was. I can hide my car keys in there during star parties I guess. But what a great invention. I wish Telrad continued success!

Thank you all for your advice and setting me straight about going with the "industry standard."


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David Knisely
Postmaster
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Reged: 04/19/04

Loc: southeastern Nebraska
Re: Telrad alternative suggestion for dobsonian new [Re: gravitino]
      #6037622 - 08/21/13 01:55 AM

Quote:

Quote:

Here is how the Telrad (with its orange dew shield) and my 9x50 RACI finderscope fit on the front of my XX14i 14 inch f/4.6 Newtonian:




David,
Is that the Astrosystems Telrad dew shield? Where did you get an *orange* one?!!

Clear skies,
-- Shane




Yup, it is indeed one from Astrosystems. I got it at the Nebraska Star Party many years ago when Astrosystems was there. I originally put it on my 10 inch Newtonian, and that orange color really got some looks. Clear skies to you.


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Doc Willie
Pooh-Bah
*****

Reged: 03/31/10

Loc: Mid-Hudson Valley, NY, USA
Re: Telrad alternative suggestion for dobsonian new [Re: David Knisely]
      #6037928 - 08/21/13 09:18 AM

The Double Lyra Mounting Bracket will support a Telrad quite nicely. It has the additional advantage of easily being used for different sighters, so you can change from the Telrad to a finder scope, or use the thing on different scope.

One of these days I will write a full review.


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csa/montana
Den Mama
*****

Reged: 05/14/05

Loc: montana
Re: Telrad alternative suggestion for dobsonian new [Re: Wmacky]
      #6038047 - 08/21/13 10:31 AM

Quote:

I think it's time for a Telrad update. A little less plastic would work for me.




Speaking for myself, I love the old clunky look and feel of the Telrad!

But, if less plastic works for you, here you go:

Cutting the Telrad in half


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MrJones
Pooh-Bah
****

Reged: 09/15/10

Loc: Indiana
Re: Telrad alternative suggestion for dobsonian new [Re: csa/montana]
      #6038225 - 08/21/13 12:04 PM

Wow I love that Telrad Jr.! Someone should sell those.

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RAKing
Postmaster
*****

Reged: 12/28/07

Loc: West of the D.C. Nebula
Re: Telrad alternative suggestion for dobsonian new [Re: csa/montana]
      #6038312 - 08/21/13 12:58 PM Attachment (2 downloads)

Quote:

Speaking for myself, I love the old clunky look and feel of the Telrad!




Careful, Carol! "Clunky" is in the eye of the beholder.

IIRC, the Telrad was originally designed for D cell batteries, thus the large battery compartment. Considering the life expectancy of the AA batteries I have in there now, I suspect that D cells would last for centuries.

I, for one, have loved my Telrads since I came back to astronomy in the late 1980s. The design and function are perfect for me and I hope they never change.

Long live the King!

Ron


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Brett Carlson
sage


Reged: 12/12/11

Loc: Rochester, NY
Re: Telrad alternative suggestion for dobsonian new [Re: n1wvet]
      #6038378 - 08/21/13 01:38 PM

Quote:

You may also want to look at a flip mirror addition to the Telrad. Makes it even more useful at weird viewing angles. Is dew a concern where you live? If so the Telrad will dew up first. You'll need to look at adding some warming resistors or dew shields. All said, the telrad still works well.




Is that the Dew Shield plus?


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Brett Carlson
sage


Reged: 12/12/11

Loc: Rochester, NY
Re: Telrad alternative suggestion for dobsonian new [Re: cliff mygatt]
      #6038385 - 08/21/13 01:41 PM

Quote:

By the way, you might want to purchase the Telrad pulser kit and install it, very nice upgrade. Available here. Good Luck!




Is that the dew shield plus?

Also...I take it the Pulser blinks the red target on and off?


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csa/montana
Den Mama
*****

Reged: 05/14/05

Loc: montana
Re: Telrad alternative suggestion for dobsonian new [Re: Brett Carlson]
      #6038391 - 08/21/13 01:46 PM Attachment (2 downloads)

Quote:

Quote:

You may also want to look at a flip mirror addition to the Telrad. Makes it even more useful at weird viewing angles. Is dew a concern where you live? If so the Telrad will dew up first. You'll need to look at adding some warming resistors or dew shields. All said, the telrad still works well.




Is that the Dew Shield plus?




Yes; here's mine with the Dew Shield plus.


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csa/montana
Den Mama
*****

Reged: 05/14/05

Loc: montana
Re: Telrad alternative suggestion for dobsonian new [Re: RAKing]
      #6038430 - 08/21/13 02:09 PM

Quote:

Quote:

Speaking for myself, I love the old clunky look and feel of the Telrad!




Careful, Carol! "Clunky" is in the eye of the beholder.

IIRC, the Telrad was originally designed for D cell batteries, thus the large battery compartment. Considering the life expectancy of the AA batteries I have in there now, I suspect that D cells would last for centuries.

I, for one, have loved my Telrads since I came back to astronomy in the late 1980s. The design and function are perfect for me and I hope they never change.

Long live the King!

Ron




Ahhh Ron, "clunky" is beloved with the Telrad! I wouldn't change a thing on it, have had the same one since I got my first scope!

I agree with your thoughts on battery life!


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Diana N
member


Reged: 07/10/12

Loc: Nebraska
Re: Telrad alternative suggestion for dobsonian new [Re: m1618]
      #6046272 - 08/26/13 12:39 AM

Quote:

Telrad does need a makeover. The components inside are very radioshack.




Don't be deceived. The interior components may look flimsy and cheap, but Telrads are all but unkillable!


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csa/montana
Den Mama
*****

Reged: 05/14/05

Loc: montana
Re: Telrad alternative suggestion for dobsonian new [Re: Diana N]
      #6046630 - 08/26/13 09:46 AM

Quote:

Quote:

Telrad does need a makeover. The components inside are very radioshack.




Don't be deceived. The interior components may look flimsy and cheap, but Telrads are all but unkillable!





Indeed they are! I'm still using the original one I purchased in 2005, from Telrad themselves. I for one, would be very disappointed to see our beloved Telrad undergo changes.

For those that don't know the history of the Telrad, this might be of interest; and also explain why it's still the same unchanged Telrad today.

Telrad history


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mark379
sage
*****

Reged: 02/07/09

Loc: New Jersey
Re: Telrad alternative suggestion for dobsonian [Re: csa/montana]
      #6046683 - 08/26/13 10:22 AM

Another suggestion on the Dob rolling around:
Buy an Orion Soft case to protect it! Also with Perhaps something large and heavy put up against it to keep it from rolling ;I.e. The Dob Base and I think You will be in good shape.


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Jon Isaacs
Postmaster
*****

Reged: 06/16/04

Loc: San Diego and Boulevard, CA
Re: Telrad alternative suggestion for dobsonian new [Re: csa/montana]
      #6046737 - 08/26/13 10:45 AM

For those that don't know the history of the Telrad, this might be of interest; and also explain why it's still the same unchanged Telrad today.

Carol:

Thanks for that link. Here's another interesting link about the Telrad story.

Lew Chilton tells the story of Steve Kufeld and the Telrad

Jon


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Jeff Morgan
Postmaster
*****

Reged: 09/28/03

Loc: Prescott, AZ
Re: Telrad alternative suggestion for dobsonian new [Re: Jon Isaacs]
      #6046910 - 08/26/13 12:24 PM

Thanks for the history links, great reads.

I always figured the design remained unchanged because the inventor had to do a very large run to justify the injection molding costs, and units sold today were still from the original run


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csa/montana
Den Mama
*****

Reged: 05/14/05

Loc: montana
Re: Telrad alternative suggestion for dobsonian new [Re: Jon Isaacs]
      #6046971 - 08/26/13 12:59 PM

Jon, thanks for the additional link. I think knowing the history of the Telrad lets others know why we absolutely love them exactly as they are now, with no changes! It's a "love" thing for the man that gave us the Telrad!

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