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rokkerz

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About rokkerz

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    Nebula

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    Chichester
  1. If you need any more pictures of the "internals" just say and will post. Also, mine has 2 fuzes too, : 240v 2A as indicated in other posts and smaller than normal household fuzes. They seem to be similar in size to another fuze that I have seen in a valve guitar amp that I have. If any problems getting a replacement fuze you could try a music shop.
  2. The transformer in mine is a Farnell one, should be able to get one in this country I would imagine. I have attached an image to help. [ATTACH]transformer[/ATTACH]
  3. How about a 12v/240v inverter. I have a jump starter for the car and that has a power inverter built in. You could then run the laptop off the 240v output
  4. I have this old document regarding image stacking in Photoshop, may be of some help. [ATTACH]Image stacking[/ATTACH] I use Gimp too with Linux (Mint Debian), and have a number of tutorials, will try and upload them to SGL if they are not too large. I think this is the link that should enable you to find them http://www.tuxradar.com/gimp Image Stacking in Adobe Photoshop.pdf
  5. Came across this website that enables location and magnetic declination to be found, thought could be useful http://magnetic-declination.com/?go=%3A%3ASEARCH+MAP%3A%3A
  6. I have a 4" Tal 100 RSM (with 2" focuser+ Vega drive corrector) and I think it is a great telescope, minimal false colour. These days I have only seen it available as just the optical tube assembly, or on a manual Tal mount, any motorised ones are on a non-Tal mount. Personally, I would not get it on the manual Tal mount, but would thoroughly recommend the telescope itself.
  7. Hi- just returning to some star gazing myself after a longish absence so thought I would pass on my thoughts as to what to buy. First I would not buy anything (yet). Join a local astro club/society and get to actually see the type of telescopes you are considering in action. I am sure members will have something similar you could get a look through. You may be disappointed with the views or pleasantly surprised. A dob is certainly a light bucket (never used one myself) but would certainly be larger than a Mak (convenience). I think it all comes down to what you will use the most. I have a 4" refractor (motorised, Tal). It does not have any goto, but I love it. It has a bit of colour, but nothing to be concerned about in my mind. Ok it will not show the dimmest DSO etc, but a great scope as it will be used. Although I started with an 8" reflector, the refractor was used more often and will be used more now. hope that may help rokkerz
  8. rokkerz

    Tal mount modifications

    As part of my servicing of my Tal 100RSM, I decided that I had to do something about the 3 nuts that hold the mount in the cup on the tripod. Tightening and loosening the nuts is not that convenient and also damages the mount where it sits in the cup. In their place I found an old drill handle, the long threaded bolt that was part of the handle, a couple of washers and a few nuts. I had to cut off the top of the bolt as it was in the way of the declination adjuster. Later I will make it more permanent, but for the present it works perfectly well and allows me to rapidly attach the mount to the tripod.
  9. Here is another old document I found that may be useful regarding servicing a Tal mount, lots of images. TALmount document modifications.pdf
  10. I came across this file that I had saved from ages ago regarding collimating that I thought may be worth posting. Originally from Talscopes but no longer around unfortunately I believe. collimating telescope.pdf
  11. Hi, I have recently joined SGL after deciding to get my Tal out of storage from the garage and back in working order again. Before I could do so it needed a good service. After finding Asto_Baby's Tal 1 Restoration/ Strip Down and Rebuild guide (http://www.astro-baby.com/TAL%20Telescope%20Rebuild/TAL%20EQ%20Mount%20Strip%20Down%20Guide.htm) along with some old documents I had saved, and help from her and AndyH, I am pleased to say it is now back working again. To help anyone else who may be be thinking of doing the same thing I thought I would post some infomation. The Tal My Tal 100 RSM: I bought it some time back in 2001, it has a 2" focuser, the 'lighter' of the motorised Tal mounts (MT-1C), a wooden tripod, a Vega drive corrector, and also the original wooden pine box. One problem I had was removing the declination setting circle. It would rotate but could not be removed from the shaft. After some messages and help from Astro_Baby and AndyH, I finally managed to remove it. I cleaned out the screw thread on the axis again!, put some new grease on the thread, some penetrating oil above the setting circle around the shaft and then pulled down and rotated the setting circle back and forth. It seems the secret was to make sure that when I pulled down, it was perfectly square with thread on the shaft, plus lots of lubricant. Inside, the setting circle was quite gummed up with some very hard Russian grease and dirt, making the fit exceedingly tight and difficult to pull over the thread on the shaft. Clutch adjustment and screw settings When I adjusted the main clutch, I found it was easiest to remove the motor first. This gave access to the worm drive which I could adjust, and then tackle the motor clutch adjustment on the side of the RA drive. After tightening the 3 screws on RA clutch until they were snug, they needed to unscrewed 1 complete turn to be properly adusted. The motor clutch adjustment screws needed to unscrewed 2 1/2 turns. It was rather trial and error to get the clutches properly balanced but these adjustments are fine for my setup. I did discover that the motor clutch adjustment screw adjustmenst are quite sensitive. Once adjusted properly, just a slight loosening of the screws (less than 1/8 turn) has a significant affect on the tracking accuracy. I found also that when the worm drive and clutches were properly adjusted the motor was much quieter than previously and could hardly be heard. PDF file I have included a copy of an old pdf file I had saved regarding adjusting the clutches that other users may find useful, I think it came from Talscopes (Canada? I seem to recall) that was around some years back. I have some other images too regarding servicing that I will try to post later. Adjusting_TAL_RA_Drive_Clutches.pdf Other adustments Another thing that needed attention was to make sure that the 3 screws underneath the mounting cup on top of the tripod were tightened. Later I intend to replace all the small black screws in the tripod mount with something a bit larger, especially as several have become slightly loose. One thing I would like to do is to change the way the mount is held on the tripod and not have to use the 3 retaining bolts. Has anyone done this? If anyone wishes to ask anything further, please feel free to ask. regards Rokkerz
  12. Joined just yesterday after a long gap not doing any observing. Owner of a Tal-100 RSM refractor and Vega controller that has spent too much time stored away in the garage. So now being overhauled, cleaned up etc and soon be ready for use again. Also, thanks to AndyH and Astro_Baby for their help in response to my questions.
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