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Atari 1040 ST Ram expansion for C070523-001
Duepre Oct 04,2023
It is only for the Atari 1040 ST C070523-001 Motherboard. You will have to desolder all old 41256 Ram Chips.It fits under the RF-Shield. The MAD9 connection has to be handwired from MMU pin64. Two caps should erplaced.
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Phantom clock patch for Atari Falcon
Oct 03,2023
This is the Phantom clock patch designed for the Atari Falcon series of computers. Information for creating the PCB was taken from the following website: https://mikrosk.github.io/clockpatch/ (Thank you to Miro Kropáček (a.k.a. mikro)) PCB design by Steven Timms (stormy/Steve on Atari related forums)Details from Miro's website:Variant 2.2 (author: Ctirad Feřtr)This one (developed by the author of the Phantom accelerator) is considered to be the best clock patch available. It should work with any...
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acsi2stm: Atari ST ACSI hard drive emulator
Kotrba Sep 29,2023
ACSI2STM: Atari ST ACSI hard drive emulatorThis code provides a hard drive emulator for your Atari ST using an inexpensive STM32 microcontroller and a SD card.The aim of this project is to be very easy to build, extremely cheap, reliable and safe for your precious vintage machine.The module supports up to 5 SD card readers, showing them as 5 different ACSI devices plugged in.It can work in 3 ways:Expose a raw SD card as a hard disk to the Atari.Expose a floppy or hard disk image file on a standa...
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Commodore AMIGA PSU USB-C Power Sink Delivery Supply High Efficiency Triple Output 5V ±12V OLED ATARI ST shark
kinmami Sep 10,2023
NEW VERSION https://www.pcbway.com/project/shareproject/V2_Commodore_AMIGA_USB_C_Power_Sink_Delivery_High_Efficiency_Supply_Triple_Outpu_f8eddd0e.htmlCompact design for high efficiency (>90%) USB-C Power Supply for Amiga 500, 600, 1200.71 x 34 mm, 2 layers, 1.6mm thickness, 1 oz.Original square DIN 5 male connector should be used to plug to Amiga.https://www.ebay.com/itm/133282737029Optional OLED display for monitoring current, voltage and power of the 5V output rail.The circuit comes with Un...
Commodore Amiga USB
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DCart ($D5XX)
GienekP Sep 02,2023
DCart - writable cartridge for ATARI XE/XL computers.The cartridge is compatible with Maxflash8_512kB & J(atari)Cart512(kB). SpartaDOS X works very well.This bank-switched cartridge occupies 8 KB of address space between $A000 and $BFFF. The cartridge memory is divided into 64 banks, 8 KB each. The six lowest bits of the ADDRESS written to $D500-$D5FF select the bank mapped to $A000-$BFFF, bit 7 disables the cartridge. Bit 6 is ignored.On the $D500 - $D5FF always you can read code from bank ...
Atari Cartridge Maxflash
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Atari 2800 Joystick
Smith Aug 28,2023
I made a modern version of this Atari 2800 Joystick with some small changes to the self center mechanism.More details can be found on the video I am currently making.
atari
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Atari 800 Stereo POKEY
Kotrba Aug 27,2023
Stereo POKEY is externsion for Atari 8bit computers. Original PCB was designed by Radek "Raster" Štěrba in 2007. New PCB by Krupkaj.The package is available under a Creative Commons license CC-BY-NC-SA.https://creativecommons.org/licenses/by-nc-sa/4.0/
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Atari 800 replacement keyboard PCB
Dan Hoover Jul 30,2023
Thanks to stormbringer for the follow up PCB design. I think he got the layout from a project that died on the vine, but this one is complete and uses readily available key switches. You can order them from Aliexpress (get 70, I recommend white low profile). https://www.aliexpress.us/item/3256805260407528.html
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Atari 8-Bit Computer 8K/16K Classic Cart
Videogames & Computing Jul 22,2023
ORIGINAL WEBSITE: https://grandideastudio.com/portfolio/gaming/pixels-past/Features:Supports 8K and 16K game ROMs for the Atari family of 8-bit computers (400/800/XL/XE).Uses easily available, off-the-shelf components.Fits into standard Atari 400/800/XL/XE cartridge cases.Build new Atari 8-bit games without modifying old cartridge circuits.Bill of Materials:U1 - 27C64 or 27C128 - EPROM (with game binary) CMOS OK, any speed.U2 - 74LS00 - Quad 2-input NAND logic gate, 14-pin DIP (Not needed for 8K...
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ATARI 800XL 256KB XE compatible SMD1206 version
Videogames & Computing Jul 22,2023
ATARI 800XL 256KB XE compatible SMD1206 version.Please download BOM.QuarterMEG Atari 800XL, XE compatible, for Ataris with C021697 (or C021698), schematics Claus BuchholzBOM:8x 41256 256K DRAMs (200ns or less)33Ohm resistor74LS15374LS13974LS158 - desoldered chip from Atari 800XL can be reusedConnections: 6 wires as in schematicsRA8 - DRAMs pin 1PB2 - U23 pin 12PB3 - U23 pin 13PB4 - U23 pin 14PB5 - U23 pin 15PB6 - U23 pin 16
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