Commodore 128 Alive!

Commodore 128 => Herdware => Topic started by: machinehead on April 19, 2008, 09:21 AM

Title: Yet another idea for VGA.
Post by: machinehead on April 19, 2008, 09:21 AM
http://www.ambery.com/db9todbadca.html

Using this cable with this

http://www.ambery.com/rgbcgatovgac.html


Seems like it might work. I have no idea though.
Title: Re: Yet another idea for VGA.
Post by: BigDumbDinosaur on April 19, 2008, 10:17 AM
I'm wondering why they are grounding the I bit of the RGBI input?  That would suggest that only one intensity is supported, which would produce a lame display.  Also, the CGA standard produces TTL-level signals, which means zero or 5 volts.  From their website:

* Input RGB Signals:

    * RGB: 0.7 Vp-p 75 ohm


Something isn't quite kosher about this product.
Title: Re: Yet another idea for VGA.
Post by: Mangelore on April 19, 2008, 10:26 AM
I looked into this product some time ago. The manufacturer confirmed that it doesn't support TTL levels or Intensity.
It was a little too expensive for me but it may be useful for Amiga fans.
Title: Re: Yet another idea for VGA.
Post by: machinehead on April 19, 2008, 11:19 AM
Thanks guys! I am glad you are here to keep us in line!!

I was really puzzled by grounding the intensity line, since it is required for RGBI.

I was able to score a C= 2002 monitor off ebay the other day. Works great, but it is small and heavy. (And old!)
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