I want to state clearly that:
In no event will BitsofthePast.com or its founders be liable for any personal injury, loss of use, loss of profit, interruption of business, or any indirect, special, incidental, punitive or consequential damages of any kind (including lost profits or explosive disassembly) due to use of the designs being freely distributed on this website. Bottom line there are no guarantees that the designs available from this website are absolutely "bug-free", so build at your own risk or buy from some other seller.
I want to state clearly that you do not have to donate, but it has cost me over $2000 in developing the 1450XL, 1250XL and 850XL replica/remix boards. Tariffs and excessive shipping charges have played a big part in that cost. It would be nice if you can spare a dollar or two.
Several small Atari XL/XE internal PCBs that add memory, allow multiple OS choices, add internal parallel printer adapter and protect the original v1 Candle Ultimat1MB from damage.
Several 8bit cartridge boards that extend or re-orientate connector angle, and allow 128K Super XE compatible games.
Several pcbs that breakout the PBI/ECI connector signals, extend/re-orientate the connector, adapt one style to another and add hard drive like storage.
Two advanced XF551 5.25" Floppy Disk Drive PCBs are now available to replace the poor quality and flaky original mainboards in the last Atari made floppy disk drive.
One reimaged XF551 based pcb for the Atari SF314 Disk Drive Case
These boards recreate a prototypes that never were released to the public.