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Part number for L1 in Gemini-1 47uH
The schematic specifies 47uH, 0.7A. It's about 6mm square with a round bobbin. Could it be Bourns SDR0604-470KL? Thanks David
By David C. Partridge · #33824 ·
Re: RS-232 interface IC and RS-232 port replacement part numbers?
I think I did the same thing. The parts are on the way - progress soon!
By Bryan Duke · #33823 ·
Re: RS-232 interface IC and RS-232 port replacement part numbers?
Well picked up. ?I think I looked at one data sheet got the specs and another place showed slightly different specs particularly capacitance The ¡°L¡± is low capacitance, the ¡°N¡± nickel plate
By Brendan · #33822 ·
Re: RS-232 interface IC and RS-232 port replacement part numbers?
Thanks Brendan, I'm glad you're helping chew on this with me. Looking deeper into the spec sheet, it seems like they might be the same actual part with the only difference being what sized reel they
By Bryan Duke · #33821 ·
Re: RS-232 interface IC and RS-232 port replacement part numbers?
Cheers Bryan happy yo help. ?Anything needs just ask. ? I would have thought low capacitance would be best ?to less encoder wave shape interference But maybe more could help, I¡¯m not sure. ?If
By Brendan · #33820 ·
Re: RS-232 interface IC and RS-232 port replacement part numbers?
You're right about the dirt & grass inside. I think it'll clean up fine. I'll take an extra look at F1 & the RVs. Thanks for the clarification on pin 8. I misread the schematic on the Gemini FAQ and
By Bryan Duke · #33819 ·
Re: RS-232 interface IC and RS-232 port replacement part numbers?
Bryan many thanks great images...they tell all, "the rude Gemini"hahaha Imgur does this just to cover their legal ass .? Its like a bug has got in and done its thing all around the bottom of the
By Brendan · #33818 ·
Re: RS-232 interface IC and RS-232 port replacement part numbers?
Thanks Brendan. I was curious about the black pin 8 too. That¡¯s not just a photo oddity. The Gemini-2 FAQ showed that as an NC pin, so I wasn¡¯t overly concerned about that specific pin. It is
By Bryan Duke · #33817 ·
Re: RS-232 interface IC and RS-232 port replacement part numbers?
you can use a usb to rs232 ?converter (install it¡¯s driver) and some terminal program ( https://learn.sparkfun.com/tutorials/terminal-basics/all ) like terra term or real term (
By Brendan · #33816 ·
RS-232 interface IC and RS-232 port replacement part numbers?
Hi everyone, It looks like I have a dead RS-232 chip and I'm planning to replace it. For some details on this, my 2007-vintage Gemini-1 G11 started acting up a few days ago. It intermittently stopped
By Bryan Duke · #33815 ·
Re: DSCs with tracking
Oops, As an OG star hopper living under the L.A. light dome the Nexus DSC is a great solution IME. -- Chip Louie Chief Daydreamer Imagination Hardware Astrospheric - South Pasadena Astrospheric
By Chip Louie · #33814 ·
Re: DSCs with tracking
Hi Mark, For visual work I have always MUCH preferred to use Losmandy mounts because they were designed? to be used as PUSH-TO mounts. When a Losmandy mounts is combined with Astro Devices Nexus DSC
By Chip Louie · #33813 ·
Re: Worm phase changed, Gemini I L4
Thank you Paul Kanevsky and Benjamin White.? I'll keep my finders crossed my hardware is in good condition and start with a new PEC curve.
DSCs with tracking
Hi everyone, Would anyone recommend a DSC system, perhaps Nexus, that would work with Losmandy drive motors? I think I might prefer that to Gemini 1 go-to. Is one in better touch with finding objects,
By Teran, Mark · #33811 ·
Re: Worm phase changed, Gemini I L4
Just a couple of suggestion from somewhat of a newbie to the Gemini 1. Try a cold start. Also check try changing the internal battery on the Gemini. [email protected]> wrote:
By Benjamine White · #33810 ·
Re: Worm phase changed, Gemini I L4
There is no worm index position sensor in Gemini -- there's only motor encoders that are used to report worm PEC index. Gemini remembers and restores the PEC index position from the previous session,
By Paul Kanevsky · #33809 ·
Worm phase changed, Gemini I L4
I'm working to get PEC set up and working properly for my MI-250/ Gemini I L4.? Ray G. is providing tech support in the PEMPro forum, here's part of one of his posts: "It's probably best to ask on
By macdonjh · #33808 ·
Re: Handcontroller touch action
No one can really say. ?It¡¯s like computer glitches unexpected input. ?It¡¯s possible the HC touch screen (overlaid on the display) has a bad contact area or two in resistance thus sent commands
By Brendan · #33807 ·
Handcontroller touch action
Well, while using the gemini 2 handcontroller I touched/pressed the top line/display zone of the HC.? It went blank and the next goto commanded on the HC led to a runaway slew necessitating a
By GlennB · #33806 ·
Re: David Partridge is available to undertake repairs in the UK from September this year
Congratulations, David! You, Brendan, and Michael are an amazing resource for the community. We're glad to have you back! Greg From: [email protected] <[email protected]> On Behalf Of David
By Greg Hartke · #33805 ·