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Use other "greyscale" monitors with mono systems?
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NeXT³
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Joined: 24 Oct 2005
Posts: 58
Location: Denver, Colorado

PostPosted: Sat Dec 23, 2006 2:51 pm    Post subject: Re: Wiring of custom made connector Reply with quote

w2510a wrote:
Hi Chef & all,

actually the wiring for my connector is quite simple.
I use the monitor cable of the NextStation Mono (DB19 connectors on both ends) to connect the Next with the Soundbox.
On the Next machine, I have made a "dongle" which passes through all wires (DB19 male/female connectors). The following wires need to be connected with the VGA cable (DB15 connectors):
VSync: Next pin 8, connect with VGA pin 14
HSync: Next pin 9, connect with VGA pin 13
Video: Next pin 10, connect with the RGB VGA pins 1,2,3
GND: Next pins 13-19, connect with VGA pins 6,7,8

That's all!

Cheers,
w2510a


Very nice work! Thank you for documenting this w2510a. We've wanted to build an adapter like this for some time now and I'm glad to see it works.
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ash



Joined: 25 Mar 2006
Posts: 46

PostPosted: Sat Dec 30, 2006 8:32 am    Post subject: Reply with quote

What, you mean like this?

http://www.nextcomputers.org/forums/viewtopic.php?p=708&highlight=#708

Been known to work for a while? There's only one bus that the NeXT uses for both keyboard and sound, right?
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Ashman



Joined: 30 Aug 2006
Posts: 56
Location: St. Louis, Missouri, USA

PostPosted: Fri Jan 05, 2007 11:40 pm    Post subject: db19 Reply with quote

I got my db19s from http://www.sfcable.com when I made my own NeXTStation to Mono monitor cable. If you get on their site and search for DB19, they're $0.50 for the male and $0.60 for the female. For the cable itself I used a 20 pin ribbon cable and just rolled it up inside of some plastic wire sheathing.

I have a couple of the connectors left though because I bought spares if you want them, NextChef (seeing as how we're both local to the St. Louis area...)

Although, if the truth be known it would probably be easier just to go over to Gateway Electronics because I did notice that they had a bunch in a bin last time I was there as well...
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NeXT³
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Joined: 24 Oct 2005
Posts: 58
Location: Denver, Colorado

PostPosted: Sat Jan 06, 2007 9:13 am    Post subject: Reply with quote

ash wrote:
What, you mean like this?

http://www.nextcomputers.org/forums/viewtopic.php?p=708&highlight=#708

Been known to work for a while? There's only one bus that the NeXT uses for both keyboard and sound, right?


Hi Ash,

My comment was intended to congratulate w2510a for overcoming the ghosting issue. IIRC, there was a mono to VGA adapter mentioned on the openstep.se forums, as well as yours and the one gborgns mentioned.

http://www.nextcomputers.org/forums/viewtopic.php?p=265&highlight=#265

I appreciate the work that everyone has put into building a video adapter. It’s not something I have the skills to do.
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nextchef



Joined: 17 Aug 2006
Posts: 955
Location: Missouri, USA

PostPosted: Sat Jan 06, 2007 9:48 am    Post subject: Re: db19 Reply with quote

Ashman wrote:
Although, if the truth be known it would probably be easier just to go over to Gateway Electronics because I did notice that they had a bunch in a bin last time I was there as well...


There is not much left a Gateway. I picked up two of each kind a few weeks ago, and that left one of each in the bin (did not want to take the last ones, just in case someone else really needed them).

On a related note, Do you think there is enough demand/interest in NeXT spec cables to actually get some made? I need some specialized cables made for a type of machine at work, so am investigating small run custom cable manufacturers. I would want to get both mono and color Y cables made, and the more I make the less each will cost. I do not have any pricing info yet, but where would I need to be in order to make it practical for all of us. Anyone have any experience with this, or a cable fab you have used in the past?

Thoughts?

Chef
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