Hi all,
This is a bit of an off-topic question, but I hope there will be
somebody here that can help. I have bought a new-old stock monochrome
CRT for a HP Agilent 8920A, basically this unit here:
https://www.ebay.com/itm/273930914548 .
It looks to me that it is just a rebranded OmniVision 6" display:
http://www.omnivisionusa.com/Industrial-LCD-CRT-Monitors/replacement-crt/crt-monitors/6-inch-kit-.html
Now unfortunately it takes TTL video as input. But I have a composite
source (a Raspberry Pi). How can I convert composite into TTL? I
basically need to extract Hsync and Vsync and feed it separately to the
unit, okay. There is an old circuit here that does just that:
https://www.elektormagazine.com/magazine/elektor-198812/47485
But I know there are also dedicated chips, like the GS1881:
https://www.mouser.com/datasheet/2/761/GS1881_GS4881_GS4981_Datasheet-769183.pdf
So basically here is my question: before I dive into this any further,
is there any chance of success? What is the optimal choice? Or is it
quite unlikely that I will be able to convert the signals? I mean, even
if I manage to extract Hsync and Vsync, is it likely to work?
I am sorry for the naive question, but I am no expert on video signals,
and it would be nice if anybody more experienced could chime in with a
few words of caution/experience.
Best wishes
Jens
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