Last updated: 26 April 2005
This page is for user comments and information specific to the Meade ETX-90RA (originally known as the "ETX Astro"), the ETX-90EC, and the ETX-90AT. Comments on accessories and feedback items appropriate to other ETX and DS models are posted on other pages. If you have any comments, suggestions, questions or answers to questions posed here, e-mail them to me and I'll post them. Please use an appropriate Subject Line on your message. Thanks.

Subject:	old etx question...
Sent:	Monday, April 25, 2005 17:51:53
From: (
I am going to purchase an etx model from '98 or '99.  The specs are the
ones that the etx 90s made today have.  The unit only has a motorized
base and little "legs" for a tripod (not a full extended tripod)  I was
wondering if this was autostar compatable?  I'm getting the item in
excellent condition for $150...

Joe Cavalieri
Mike here: The original ETX (now known as the ETX-90RA) is not Autostar compatible.


I'm guessing the R.A. and Declination are built into the unit....Is
there an ac adapter available?
Mike here: That model has only a RA drive. You can add a Declination drive: see the Accessory Reviews: Miscellaneous page for the JM MotoDec. There is no commercial AC adapter but you can make one; see article "Alternative Power Supply" on the Helpful Information: Telescope Tech Tips page.
Subject:	ETX-90 OTA in an ETX-70 AT mount?
Sent:	Saturday, April 9, 2005 04:31:59
From:	John Chappell (
Do you know if an old ETX-90 OTA will fit in an ETX-70AT mount? I'm
thinking of ordering a factory refurbished ETX-70AT to put my old ETX-90
OTA in, so I can use  the 70's mount, Autostar controller, field tripod
& EP's. Not to mention having the 70 as a wide-field back up scope. WIll
the 90 OTA fit in the 70 mount?????
Many thanks in advance,
John C
Mike here: See the article "Putting ETX-90 on ETX-70 forks" on the Helpful Information: Telescope Tech Tips page.

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