I just finished up installing the Atari 7800 S-Video, Composite and Audio (Mono) mod board from
http://www.electronicsentimentalities.com
S-video picture is very good after I put a SPST switch on the TIA line in order to remove the wavy lines in 7800 mode. I would recommend using stranded wire - not solid core. I mounted ports on the left hand side, facing down. The old RF cable makes are great audio cable as it short enough to not cause the 7800 to be propped up due to down facing RCA ports. Since my S-video port is all the way in the back it also has enough clearance too.
Now I just need to get a 2600 / 7800 sticker to label the switch.
This makes the 7800 so much more enjoyable.
http://www.electronicsentimentalities.com
S-video picture is very good after I put a SPST switch on the TIA line in order to remove the wavy lines in 7800 mode. I would recommend using stranded wire - not solid core. I mounted ports on the left hand side, facing down. The old RF cable makes are great audio cable as it short enough to not cause the 7800 to be propped up due to down facing RCA ports. Since my S-video port is all the way in the back it also has enough clearance too.
Now I just need to get a 2600 / 7800 sticker to label the switch.
This makes the 7800 so much more enjoyable.