I looked at all my normal test patterns and test pictures, and a couple of whole
(and colorful!) vacation slide shows (played on a Sony BluRay player).
I also watched Adventures of Robin Hood and The Hobbit I and some live
shows. Results are all near perfect, and better than a real CT-100 on its CRT
because of perfect DC restoration.
A schematic of the converter is attached. It looks and is trivial, but took quite a bit
of work to get all the levels (both voltage and bias current) working right. It uses
a 12-15 volt wall-wart. Its intended for 75 ohm loads. Note that I'm using 1 watt
film resistors for the 1 meg ones. The capacitance of these matters a very lot ...
thus, the trimmers.
http://www.videokarma.org/attachment...1&d=1557588331