Jump to content

More info on Radius Videovision


Recommended Posts

Hi! I have this card (nubus) with memory expansion and studio board. I searched on web but i not able to find some spec... how many vram have the board? If I watch the chips on board is 4mb! But macbench show me only 512kb... :-(

 

I use the board with fixed frequency monitor apple 16. At 832x624 I can select only 256 colors... is normal?

 

What is needed the studio upgrade board?

Link to post
Share on other sites

Hi marmotta,

 

I'd look at the card as an unaccelerated Nubus capture card, not as a video card which as you've discovered has limitations with resolution and colour depth (although I do recall the one I had had some sort of expansion card and did display millions of colours).  As I didn't have the breakout box on mine I sold it.

Link to post
Share on other sites
4 hours ago, Byrd said:

Hi marmotta,

 

I'd look at the card as an unaccelerated Nubus capture card, not as a video card which as you've discovered has limitations with resolution and colour depth (although I do recall the one I had had some sort of expansion card and did display millions of colours).  As I didn't have the breakout box on mine I sold it.


But the card only work if you use your video board, with onboard or another nubus card the video capture not work. I think is needed two monitors for best use...

Link to post
Share on other sites

That's the case, the VidCap output/stream goes on the card's display. You need a NuBus VidCard or built in video running a display for the Mac side of things. NuBus lacked the bandwidth to display Video from a capture card. PCI fixed that in later VidCap hardware generations.

 

http://radius.vintagebox.de/RadiusQA/VideoVision.html

Link to post
Share on other sites
  • 2 weeks later...
  • 1 month later...

Does anyone have a standard breakout box for one of these boards handy? I'd be curious about trying to dissect one to reproduce them. The cards come up for sale fairly often, but they're almost all missing the breakout box. I can't imagine there's a tremendous amount of intelligence in the thing given the fairly limit number of pins and what the thing is ostensibly for.

Link to post
Share on other sites
  • 68kMLA Supporter

I’ve got the Nubus Studio breakout. Next time I have it out I’ll trace the pins with a multimeter.

 

I believe the PCI and Nubus versions of the Studio breakout were slightly different, so mine won’t apply to PCI (unless I’m wrong.) I think both PCI and Nubus versions of the Telecast board operate the same Telecast box FWIW. 

Link to post
Share on other sites
On 3/24/2021 at 1:44 AM, jeremywork said:

I’ve got the Nubus Studio breakout. Next time I have it out I’ll trace the pins with a multimeter.

 

I believe the PCI and Nubus versions of the Studio breakout were slightly different, so mine won’t apply to PCI (unless I’m wrong.) I think both PCI and Nubus versions of the Telecast board operate the same Telecast box FWIW. 

 

That would be fantastic. Thank you.

Link to post
Share on other sites
  • 2 weeks later...
  • 68kMLA Supporter
Posted (edited)

Is this the break out box you are looking for images of, it was in another discussion.. (not this is the Nubus variant, which seems to differ possibly from a PCI version). There’s an image in the link, adde  below too

 

C860BFE3-766C-4A19-82F9-904552C8A19C.jpeg

Edited by TimHD
Link to post
Share on other sites
  • 68kMLA Supporter
On 4/8/2021 at 5:03 AM, TimHD said:

Is this the break out box you are looking for images of, it was in another discussion.. (not this is the Nubus variant, which seems to differ possibly from a PCI version). There’s an image in the link, adde  below too

 

C860BFE3-766C-4A19-82F9-904552C8A19C.jpeg

That’s the one, but the resolution isn’t great.

Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
×
×
  • Create New...