/vr/ - Retro Games

>>2021352
The machines didn't output proper RGB. They were missing a lot of components necessary for the signal to be standard/stable, which is what is in that box. Third party cables are just following one guide written by a person with no knowledge in electronics, who managed to "get it work" on his set. They can in fact cause damage to some sets since they are sending a signal with different properties.

SECAM is just another modulation standard like PAL or NTSC, which doesn't matter at all since you are using RGB.

I think the French console versions used RGB because it was cheaper to do that than getting a SECAM video encoder. Take a look at the French version of the Master System: it is missing the entire video encoder IC, as well as the RF modulator - it outputs RGB straight from the vdp itself, hence the need for the extra hardware in the cable.