Re: 6569 luminances

From: Segher Boessenkool <>
Date: Sun, 13 May 2012 21:59:34 +0200
Message-Id: <>
> a little ago we had a discussion on the VIC luminances levels and  
> this picture by Markko was referred
> luminances.gif
> It seems that the R3 displays colours noticeably brighter than R4  
> for example


There should also be pretty big differences between different batches
of the same chip, and individual chips in a batch even, especially
on the 65xx (less so on the 85xx I think, but it could be the other
way around, hrm.  Threshold voltages are more uniform on the 85xx,
but diffused resistor values is what matters more here).


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Received on 2012-05-13 20:00:22

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