Hello, Dick Seymour pointed me in the direction of this group as people who might be able to help me with a problem. I need help identifying the vendor/part #...
Second tiime around: Try the following link: http://www.aosmd.com/web/products/product_display.jsp?displayType=mosfet_part&partnumber=AO4812 That is for Alpha...
Try the following link to Digi-Key: http://search.digikey.com/scripts/DkSearch/dksus.dll? Cat=1376381;keywords=4812 There are three Vishay/Siliconix 8-pin...
Second tiime around: Try the following link: http://www.aosmd.com/web/products/product_display.jsp? displayType=mosfet_part&partnumber=AO4812 That is for Alpha...
Try the following link to Digi-Key: http://search.digikey.com/scripts/DkSearch/dksus.dll?Cat=1376381;keywords=4812 There are three Vishay/Siliconix 8-pin...
... http://search.digikey.com/scripts/DkSearch/dksus.dll?Cat=1376381;keywords=4812 ... that search for "4812". ... Yep, but they are single mosfet packages and...
After taking a month off to continue work on my weather station design for obs control, stock for 11 more of the 909's are available (was 13 yesterday). After...
Has anyone done any calibration for micro (as in program lookup table) based compensation of thermopiles/thermocouples to account for ambient temperature? U1 =...
Some background on the question, this is for the weather monitor cloud detector based on a thermopile. I do not want to use the internal thermistor in an...
Does anyone know if i can use a Boxdoerfer MTS3 SLP on an GP-DX with MT-4 motors? Pinlayouts for the MT-4 (9pins DIN)? Thx! Greetings Wim Stemgée PS Boxdoefer...
The board in the ETX-60, 70 & 80 is similar to that used in the DS2000 mount. I drew up the schmetic of the DS2K and posted it in the groups photos here:...
For some time, I've been putting together an imaging platform which obviously involves my laptop. Since alot of others out there are already using laptops or...
I have an old 494 Autostar that I use occasionally to entertain my grandkids and it seems to have died or at least got itself into an unusual mode. Now when I...
The only repair I've ever been able to do on the 494 is replace the LCD. To start with the case is gluded together:( You have power and the LCD, but the unit...
Go for the 497. Years ago I had a 'dead' 494 that took a 'little' work to get running again. http://www.geocities.com/lynol1000/as494/index.html For me it was...
Hi, all, On behalf of a friend of mine. She had an EQ5 mount, GOTO modded with Autostar 497, DS motors and GOTO4All units. But it blew over, the tripod was...
I should point out that a new tripod can be bought independently. See http://www.iankingimaging.com/show_products.php?category=46&offset=10&offset=20 (3rd item...
Just an update on the problem... I ordered replacement mosfet's from digikey last week and they arrived this Monday. (IRF 7328 as a replacement for alpha &...
G'day.... I am new to this group, I have a Vixen Super Polaris R-150s with DD-3 hand control and motors but I have always wanted it to be autoguided, I would...
Hi Tony, You could use your current rig for autoguiding. What you would need to do is modify the handbox, by connecting the direction switch contacts to a PC,...
Some ideas from the Photos, i.e., Photo Albums> Super Polaris Dual Drives Rob's Vixen GP-E roboscope retrofit Vixen SP My conversion was just putting Synta...
FYI... Since a lot of you are looking for comments and reports on the Warpsdrive Belt Kit and its performance... I thought the following post may be of...
Well, I just finished Roboscoping my LXD500 (an old Meade CG5-style equatorial). I¡¦ve been fiddling with Meade DH motors over the past couple of years with...
Hi Travis, The RA and DEC ratios accept a negative sign which reveres the direction of rotation on that axis. Darren. ... [Non-text portions of this message...
Yes indeed - if you fit a motor to the opposite end of the worm shaft than normal (like I did), you have to make the ratio a negative number. 3.28533 is the...
Doh! I was using the wrong ratio. The one I was using is for the DH motors. The 3.28533 is the correct one for the DS motors. It seems to be working ok now...
Gday Gene ... As you are trying to get a differential reading, i still reckon yr better off with the DS18B20. Its only "guaranteed" to 0.5deg, but it can...
Having problems with message search?
Fill out this form to ensure your group is one of the first to be migrated to the new message search system.
