Hello, Today I was thinking what if I create my own RGB SCART cable from scratch. So, here are my questions for you: - what wires to use: thin or thick? - what connectors to use: metal or golden plated? - what insulating material to use to insulate each wire: aluminium foil or aluminium band (scotch) or copper twin wires? - what brand of resistors and capacitors to use? - the length of the cable (wires)? - audio wires to put them apart from the rest inside the cable even if they are insulated? - it is necessary to use ferrite core/bead on each ends if I insulated each wire? Thanks!
Basically, you will want to replicate (or convert) a normal to good grade VGA cable. The audio can be routed separately via regular RCA plug cable. VGA cables are purpose made for the job of transferring video. They also have to do it at higher frequencies, so they're perfect. Ferrites on each end are optional, but nice to have.
I won't argue with rama cause he know what he's talking about. I just wanted to say that one time I made my own PS1 RGB cable from 8—wire shielded cable that was pretty cheap, a DB-9 connector (so I get rid of PSOne MultiAV out connector), and used wideknown schematics: CSYNC (TTL SINCIN pin)>>>75R>>>220uF>>>SCART RGB>>>75R>>>220uF>>>SCART I tested and that was awesome. I were ready to compare it with OEM cables. I do have additional two cables — one were produced by Sony (oem RGB gray cable) and second that was licenced (CVBS based SYNC). I can assure you that CVBS based cables do have some "chess—like" artifacts. Easy to notice them if you'd like to. Cables that have built in LM1881 that use CVBS as it's sync sourse do have these artifacts too. Less of cource. The cable I did with pure sync were as sharp as possible without any signs of artiffacts. All I wanted to say is that all results I do have now tells me that most important in all that are signals quality. Thats the thing you need to take care of. Right now I'm playing with THS7314 and I hope I'll do the same with THS7374 too. They produce correct 75R(Omega) standart signal levels. I hope they will, cause that's too important for me now. So if you would like to build your own cable probably you'll need THS7374 too in some distant future.
