As far as I'm aware these are among the smallest color VGA monitors ever produced. The chassis was used in MANY different products/applications besides this one - including LeCroy oscilloscopes. Anything that required compact full-color display with sharp details probably used this or a variant.
Inside is the Samsung M23LCD32X02 tube. After doing some research on other 9" PC Monitors it seems this tube is common to nearly all of them, even if the chassis varies in design. This one has analog adjustment controls but there are also digital ones like this smol one @shankmods.bsky.social has.
The only other tubes I've seen at this size with comparable dot pitch are from Panasonic and Sony, both at 450 TVL resolution. Here's a pic of the M22JHD01X from a Ikegami TM10-17RA... but this Samsung is sharper. I don't have an exact TVL number but I can tell just by looking at the two up close.
Here's an example of the same chassis being used for a different application. A LeCroy digital oscilloscope display module. You can tell it's identical when comparing to my internal shots above.
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