Colleton Posted March 11, 2020 Author Share Posted March 11, 2020 I watched the 8-Bit Guy retrobright a C-64 a week or so back using some wild looking UV lights with great results. I ordered a pair of them this evening after realizing that I would probably never get the case back to the original shade without some help. Hopefully, they will make a difference. I'll either melt it down or get it back to the original color. https://www.amazon.com/gp/product/B07FSZGP1Q Quote Link to comment Share on other sites More sharing options...
jamm Posted March 11, 2020 Share Posted March 11, 2020 12 minutes ago, Colleton said: The bottom case back needs more work, but it is much better. I need to turn the back towards the window for a few days. What do you think? MUCH better than it looked in your first pictures! As for the UV lights: it should definitely speed up the process. I just wouldn't do more than 3 or 4 hours the first time around (depending on what size lights you get) in order to avoid going too far. Quote Link to comment Share on other sites More sharing options...
Colleton Posted March 11, 2020 Author Share Posted March 11, 2020 I think I'll check at the 2 hour point and then go from there. If it weren't for the patch on the cart door I'd probably call it good right now. It will be interesting to see how it turns out. Quote Link to comment Share on other sites More sharing options...
Kyle22 Posted March 11, 2020 Share Posted March 11, 2020 Just don't get the strong stuff. Interesting thing about high purity / strength H2O2. If you drip drop by drop it on the earth - the soil that is the ground, it bursts into flames. Extremely strong Oxidizer. Strong H2O2 is very! dangerous. Quote Link to comment Share on other sites More sharing options...
Colleton Posted March 11, 2020 Author Share Posted March 11, 2020 I'm using Salon Care 40 Volume from Sally Beauty. It should be safe, at least nothing has caught fire yet. 1 Quote Link to comment Share on other sites More sharing options...
+mytek Posted March 11, 2020 Share Posted March 11, 2020 13 hours ago, Kyle22 said: Strong H2O2 is very! dangerous. The Germans used it as a rocket fuel for the Messerschmitt Me 163 Komet Rocket Plane, but later abandoned it because of how difficult and dangerous it was to handle. Wikipedia Link 4 Quote Link to comment Share on other sites More sharing options...
ClausB Posted March 11, 2020 Share Posted March 11, 2020 (edited) Peroxide was not abandoned in rocketry. The Soyuz rocket, for one, still uses it. The Komet was abandoned for rather larger reasons! Edited March 11, 2020 by ClausB Quote Link to comment Share on other sites More sharing options...
Colleton Posted March 13, 2020 Author Share Posted March 13, 2020 This is after 3 days (9-10 hours) retrobrighting with peroxide creme this week and 2 hours in a clear peroxide/water solution under UV lamps. It looks really good, very light with no blooming and an even tone all around. It is vastly improved. I can't get it to match that one spot on the cart door and doubt I ever will, so I'm calling it done and getting ready for re-assembly. 7 Quote Link to comment Share on other sites More sharing options...
luckybuck Posted March 16, 2020 Share Posted March 16, 2020 Hi Colleton, When you do a: PRINT PEEK (65528) in your Atari 800, which value do your receive? Many thanks in advance. ? Quote Link to comment Share on other sites More sharing options...
Colleton Posted March 16, 2020 Author Share Posted March 16, 2020 I'll try it when I get it reassembled. Trying to figure out what to do about the broken cart door latch right now. Quote Link to comment Share on other sites More sharing options...
Colleton Posted March 17, 2020 Author Share Posted March 17, 2020 ? PEEK(65528) = 221 Quote Link to comment Share on other sites More sharing options...
Colleton Posted March 17, 2020 Author Share Posted March 17, 2020 Quote Link to comment Share on other sites More sharing options...
Wrathchild Posted March 17, 2020 Share Posted March 17, 2020 That seems a really nice clean output, is that solely from the monitor port? Quote Link to comment Share on other sites More sharing options...
luckybuck Posted March 17, 2020 Share Posted March 17, 2020 Thank you very much, you have OS A NTSC, sadly, it is not the lost to believe OS 255 we are still searching for... OPERATING SYSTEM 255 for Atari 400/800 ; PRINT PEEK (65528) <RETURN> => 255 Quote Link to comment Share on other sites More sharing options...
Colleton Posted March 17, 2020 Author Share Posted March 17, 2020 (edited) 1 hour ago, Wrathchild said: That seems a really nice clean output, is that solely from the monitor port? Yes, that's stock S-Video run through an upscaler. 1 hour ago, luckybuck said: Thank you very much, you have OS A NTSC, sadly, it is not the lost to believe OS 255 we are still searching for... OPERATING SYSTEM 255 for Atari 400/800 ; PRINT PEEK (65528) <RETURN> => 255 Yeah, I knew you were hoping for a 255. Someday, maybe. Edited March 17, 2020 by Colleton Quote Link to comment Share on other sites More sharing options...
luckybuck Posted March 17, 2020 Share Posted March 17, 2020 (edited) I never give up, I never surrender... Stay strong. ? The day, all questions are solved, the day, the question mark will vanish in my avatar and the Jr.-> Kong sen.... Edited March 17, 2020 by luckybuck Quote Link to comment Share on other sites More sharing options...
Caterpiggle Posted March 17, 2020 Share Posted March 17, 2020 255 is OS PAL Rev. B ? Is that right ? Quote Link to comment Share on other sites More sharing options...
luckybuck Posted March 17, 2020 Share Posted March 17, 2020 No! Please see my post #39: $FFF8 must be filled with $FF. Please see our 'Wanted: Dead or Alive-List': https://atariwiki.org/wiki/Wiki.jsp?page=Rarity 10 Quote Link to comment Share on other sites More sharing options...
Caterpiggle Posted March 17, 2020 Share Posted March 17, 2020 So you are asking the impossible 255 in very early stage of per-released Atari 800 before the official market ? Or either in very low serial number in CITA as such ? Myself, I do not believe to have any early Atari 800, just normal standard 800. Quote Link to comment Share on other sites More sharing options...
luckybuck Posted March 17, 2020 Share Posted March 17, 2020 Yes Caterpiggle, both the OS 255 and a maybe(!) OS B PAL. We assume, the OS B PAL was never released. Quote Link to comment Share on other sites More sharing options...
Caterpiggle Posted March 17, 2020 Share Posted March 17, 2020 All my Atari 800 are NTSC , none in PAL. Quote Link to comment Share on other sites More sharing options...
luckybuck Posted March 17, 2020 Share Posted March 17, 2020 OS 255 is NTSC and will ever be... Quote Link to comment Share on other sites More sharing options...
Caterpiggle Posted March 18, 2020 Share Posted March 18, 2020 So 255 is NTSC Rev. A instead of standard NTSC Rev. B like mine. Quote Link to comment Share on other sites More sharing options...
luckybuck Posted March 18, 2020 Share Posted March 18, 2020 (edited) No, please see: https://atariwiki.org/wiki/Wiki.jsp?page=Rarity 10 At least a few bytes must(!) differ... OPERATING SYSTEM 255 for Atari 400/800 ; PRINT PEEK (65528) <RETURN> => 255 Many thanks to kr0tki who found the trace, that the OS 255 is for real! In page 8 of: All about Cassette Tapes from 1979.pdf ; size: 741 KB we find: Page 8 of: 'All about Cassette Tapes from 1979' Edited March 18, 2020 by luckybuck 2 Quote Link to comment Share on other sites More sharing options...
+hunmanik Posted March 18, 2020 Share Posted March 18, 2020 Regarding "OS 255" there's also: https://mcurrent.name/os255/410insert-os255.htm https://mcurrent.name/os255/softside.htm Quote Link to comment Share on other sites More sharing options...
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