Edoardo kinmami
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Description
Commodore Amiga 500 Plus 2MB Memory RAM expansion Gary Adapter Real Time Clock RTC
Designed for Amiga 500 Rev 3, 5, 6 and 8.
This is a two megabyte memory upgrade for the Commodore Amiga models 500 and 500+.
It is a modern replacement for the original A501 0.5MB upgrade from Commodore.
Add up to 2MB of memory to the machine depending on motherboard revision, Fat/Fatter Agnus and Kickstart version.
It can provide both chip RAM and slow RAM in one expansion.
The adapter does stabilize the CCK signal on Rev 3 and 5.
To be used with the trapdoor expansion here:
Firmware by JM27
Code
_Firmware.zip
Schematic and Layout
2M_gary_sch.png
Feb 04,2024
1,902 views
Commodore Amiga 500 Plus 2MB Memory RAM expansion Gary Adapter Real Time Clock RTC
2 Mega Byte trapdoor memory expansion with RTC and Gary adapter without wirings and modification to the motherboard
1902
5
7
Published: Feb 04,2024
Standard PCB
BOM(Bill of materials)
Centroid file
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File Last Updated: 2024/06/11 (GMT+8)
File update record
2024-06-1114:12:36
Parts List (BOM) is updated.
2024-02-0417:48:52
Parts List (BOM) is updated.
Only PCB
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