archeocomp

And XEs as well.

That is info I was looking for:-) What specific work btw?

100 hundred keycap sets target mentioned previously looks doeble.

Try reading this https://atari8bit.net/everything-sdrive-max/#programming

That is exactly PCB that I have. Thanks for jumpers photo. I have TL866 programmer too. But I have also ordered this https://oshpark.com/shared_projects/MjBJtpCb Not sure which option I will choose. Thanks to all. Rev C is going in there.

Nice but I do not want any additional switches, holes in case. I want to keep my 600XL in original purist shape, only better. I was under impression that it is safe to choose any of the three BASICs. But I will stick to Rev C. then. I only plan to write very BASIC programs with #FujiNet, to do some simple socket communication, when folks developing #FujiNet are that far.

Still I am puzzled. Are there any incompatibilities? Is it better to install ATARI BASIC rev C, TURBO BASIC XL or ALTIRRA BASIC? Which one should I choose? I have Rev B currently.

When I had three 800XLs two years ago I sold one.. guess I am not that bad hoarder. Still I have one too much.

When I saw topic title I was asking myself if such a thing is possible. Now seeing what you have... I have only one:-( I envy

Thank you it worked very well. I uploaded some pictures here

I did UV mod 2.1 (partially). It greatly improved picture. Now even CRT TV input is VERY good. All the noise is gone and sharpness is greatly increased. I replaced L14 with 3.3Ohm resistor, C115 with 220uF, and connected pin 1 through resistor 75 (two 38 in series) and connected pin 5 through resistor 100 ohm. See in picture where I connected them. Do not forget to to apply also point 3 from UV mod - cut the foil on bottom side.

Cool, thanks. It looks like L14 has been replaced with resistor, C115 is bigger now and C109 has been removed. I am gonna give it a try. I do not see S-Video brought out on you board. Maybe it has been done from solder side.

That did not last long haha:-)

Could you post more detailed picture(s) of video area? Right now I have another PAL 600XL on the desk and I am trying to make video better. See in neighbouring thread (how many mods..) I would like to know what needs to be altered in a PAL machine with monitor out.

I have an unmodded PAL, with 16kB RAM. On CRT composite is quite good, but TV signal is noisy. On LCD not even composite is good.

@Marius which disk capacitor was it? Another question, does wiring S-Video require more than two new resistors?

As soon as we happen to have more than ONE 800 or 130 or so on... we are hoarders. Face it:-)

I managed to buy two sets from Poland. Could you please also post (link to) equations and/or Jedec files for GAL?

Are those PCBs public or can I order from someone? I would love some cartridge(s) for my 800XL

https://www.ebay.de/itm/153857589384 Could not resist..

Awesome. Waiting ..

Hustý

Should not be Uno tolerant to having both power sources at the same time? Anyway new Uno costs few bucks. But try reflashing first.

Just a bog standard 130XE with XF551 also standard, no speeder or similar. But the prices went insane...

https://www.atariarchives.org/cfn/12/02/0084.php