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Found 2 results

  1. Hi, I´ve made some more new pieces of my (mostly in germany) well-known expansions. If you´re interested, please find all informations below (end of this post)! 512 KB SRAM memory expansion for all Atari XL/XE and XEGS This small PCB (only 5 x 5 cm) enables your Atari XL/XE to watch the newest demos or play the actual homebrew games which requires often more than the 64 KB main memory of the machine. My solution don´t need the drill holes for switches, it´s software configured. After power on, the 512 KB "RAMBO" mode is active. This mode should fit all your needs in 99% of all use cases. For some rare programs you can switch to 256 KB Compy-Shop mode (with seperated ANTIC and CPU access) or switch the whole expansion off. These setting remains active until you power off the computer, a coldstart without power cycling won´t change the setting anyway. The ANTIC needs to desoldered, if it´s not already in a socket. Also the MMU. Just three wires must be soldered, a prepared cable for that is included. This SRAM based 512 KB memory expansion works in all Atari XL, XE and XEGS computers. Mini-Speedy 1050 for the Atari 1050 diskdrive This small PCB sizes only 5 x 5 cm and it´s installation is absolute solderfree. Just remove two chips, cut of four capacitors and plug in the Mini-Speedy 1050 PCB - that´s all! The Mini-Speedy 1050 offers the following features: 1. Highspeed SIO transfer up to approx 76000 bps 2. Real Double Density (180k each disk, 256 bytes per sector) 3. Flawless 8 KByte track buffer with highspeed write by default 4. Works with all known Highspeed SIO routines and any DOS 5. Built-in (just boot your 1050 with open disk lever!) Highspeed-Copy-Program or BiboDOS (needs seperate switch for changing Speedy O.S. selection). Turbo 1050 Replica for the Atari 1050 diskdrive The Turbo 1050, made by B. Engl, is one of the "freakiest" products I know. Just using an EPROM, a GAL (logic chip) and some parts around the Turbo 1050 is a very cool floppy enhancement for the Atari 1050 diskdrive. The power is in the software only! No track buffer, no additional RAM, no CPU with bigger address space. On the other hand, Turbo 1050 can copy more protected games like any Happy 1050! A short brief about the features: 1. Enables Double Density (180k per disk, 256 bytes per sector) 2. Enables Highspeed-SIO up to 70000 bps 3. Has built-in "BackUp Machine" for copying protected disks 4. Parallel port printer interface (not included in this replica) Due to the fact that the Turbo 1050 hasn´t any track buffer the Highspeed-SIO is always used, but really effective only when the disk to be used was formatted using the Turbo 1050. The Turbo 1050 formats disks with a special interleaving, so that these disks can be read at the same speed like all other floppy enhancements with track buffer. How to order You don´t need to show interest - these products are already developed and built, I have some at stock. Please load the following PDF file: http://www.van-radecke.de/STUFF/tfhh_HW_info.pdf If this link won´t work, try this one (same content): https://c.gmx.net/@334647219317637459/l5-Q6dQOQl-nheYIoit9ZQ This PDF file will be regulary updated! So you don´t need to ask "Is there any left?" - just download the file and look to page 2 This "catalogue" also includes my other solutions. Jurgen
  2. Hello, I was wondering, if the Atari 1064 Expansion memory for Atari 600XL, could be used in any Atari 800XL, improving the Atari 800XL RAM, or not work? Any comment, suggest, are welcome. Thanks! Regards.
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