I can understand why the Gemini II went with the more standard coaxial DC power connector - to save front panel real estate needed for all the new connection possibilities. But I also liked the fact the old DIN connector was obviously only for the Gemini I, nothing else could possibly use it. I wonder why since they were going to the new DC coaxial connector why they didn't choose the captive, threaded version of the connector. There is a lot greater chance of accidentally pulling out a coaxial connector because of its smaller size and lesser contact insertion resistance. The threaded collar DC coaxial connectors are much less common but are available and you would know the connector by the feel of it in your hands, very different from the standard connector. My SBIG ST-402 camera uses this type of connector and I never worry about accidentally snagging the power cable and pulling power from the camera.
Keith
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--- In Gemini-II@..., "MartinCavell" <martincavell@...> wrote:
Hey guys,
I was setting up to plug in my Gemini 2 for the first time this morning and noticed something that is likely everyone here already knows... The Gemini 1 and Gemini 2 power connectors are different apparently.
I wanted to run my system off of 18 volts. I'd read that it was better but the exact reason escapes me. Anyhow, I purchased a very nice Kendrick battery and a cable for the Gemini 1. I though to myself "why would they change that..."... well it is totally different. Indeed so much that I'm concerned. The Kendrick power cable has 4 pins and is pretty beefy. Additionally there is no way I could accidentally plug that into one of my MANY other 12 volt accessories I have as the plug is not in any way a standard power plug. The new Gemini 2 seems to use a normal power plug like any other powered device, only it is labeled 12-18 volts (and apparently likes 18!) I don't really want an 18 volt plug laying around that could plug into my CCD, computer, fans, or video setup.
So, I'll be running 12 volts for awhile I guess until I come up with a reasonable solution that will remove the chance of me smelling smoke in the dark.
Do any of you have an opinion on the 12 vs 18 volts Gemini 2 operation? Is it actually better at 18? Should I just wire up an 18v cable with the normal plug and put a huge label on it... near the business end?
Thx,
-Ted
--- In Gemini-II@..., "gray_k99" <nemo129@> wrote:
Dave and Terry,
Thanks for all of the advice on the accessories and keep it coming if
you think of anything else! It is very helpful to someone like myself
who has not even received his mount yet! I hope it is helping other
group members as well! [:D]
If you want to see more about the dimmer for the polar scope, look here:
<> . I think it is a
good idea, as I have other illuminated optical devices and always have
issues with them being too bright. It's only $30...and compared to what
I am already spending, a drop in the bucket. [;)]
Dave your idea that the TKS knobs are too large is not the first time I
have heard that. I may just go with the Bob's Knobs versions as the
knobs do look smaller and would be less likely to cramp the area.
I have considered the Casady saddles, however I do have a couple of
scopes with Vixen dovetails which I use with an ADM D to V adapter. I
suppose I could just put D type dovetails on them, but then I could not
use them on my 3rd mount a CG-5 ASGT that I use some nights while not
doing AP and I really do not want to carry the big guns out. This will
change when I get the financial approval from the CFO to build the
observatory. From what I hear, that is the best accessory!
As I said, I will probably buy some additional stuff after I sell the
CGEM. I really do like those Casady CWs! I know...it's dark and no one
sees them! I was just amazed at how plain the Losmandy CWs look when
compared to the beautiful way they make their mounts.
More importantly and keeping with the theme of this group is my concern
for the finalizing of the Gemini II firmware. I do have confidence that
it will someday be an incredible product, I like everyone else here just
wish that were sooner than later at this point in time.
Clear Skies!
Kirk
Keith Myers