ApolloBoy #1 Posted April 9, 2013 (edited) I noticed this recently and couldn't help but notice that it looks a lot like puppetmark's 7800 composite mod: http://tinyurl.com/c8dqcb5 Has anyone tried this mod or something similar? I'm thinking of doing this on a Jr and Vader but I really don't know if it's any good or not. I already know about the Batari mod (have it installed in my Heavy Sixer) but I don't feel like spending over $60 on two Batari boards when I can just spend a few cents in parts building puppetmark's mod. Edited April 9, 2013 by ApolloBoy Quote Share this post Link to post Share on other sites
shadow460 #2 Posted April 9, 2013 I had a 2600A come through here with a similar mod. They used pots instead of resistors, so one could set the values. It would not produce a usable RF signal, but the composite output was good. I sold the system while back. Quote Share this post Link to post Share on other sites
ApolloBoy #3 Posted April 11, 2013 Anyone else wanna chime in on this? Quote Share this post Link to post Share on other sites
ApolloBoy #4 Posted April 16, 2013 (edited) OK, I got in both a Vader and Jr. and I decided to try this mod on both to see how it went. It looks OK on the Vader, but it's fairly dark and I get some weird interference patterns if I turn the sharpness on my PVM up. It went even better on the Jr. though, I got a nice bright picture with good colors and no interference whatsoever. Now, I'm thinking this might have to do with how I did the mod on the Jr, as I removed the RF jack and put a 9-pin mini-DIN jack in its place (the same used in the Genesis 2/3). In turn I'm using my Genesis 2's RGB SCART cable on it, which uses composite video as the sync signal and also has a 75 ohm resistor on the sync output. I'm wondering if the 75 ohm resistor helped that in any way, and if so I might try it on the Vader (which I modded with RCA jacks). Thoughts? EDIT: Just tried a normal Genesis 2/3 AV cable on the Jr. and still got a great picture. Hm... Edited April 16, 2013 by ApolloBoy Quote Share this post Link to post Share on other sites
Rex Dart #5 Posted April 16, 2013 Anyone else wanna chime in on this? Looks like $20 upcharge on top of $3 of parts to me. 1 Quote Share this post Link to post Share on other sites
ApolloBoy #6 Posted April 16, 2013 Looks like $20 upcharge on top of $3 of parts to me. Which is why I built it out of parts I had instead of buying the board I linked to. Quote Share this post Link to post Share on other sites
ApolloBoy #7 Posted May 9, 2013 So any ideas as to why the same mod turned out fine on the Jr. but not on the Vader? Quote Share this post Link to post Share on other sites
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