Difference between revisions of "Dobbertin Memory Expansion"
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Revision as of 15:10, 19 December 2010
A memory expansion by the German company Dobbertin.
The Dobbertin memory expansions are compatible to the memory expansions by dk'tronics. The memory expansion came in two versions. A version with only the memory expansion, and a version with two sockets for additional rom software.
Technical Specifications
Could take memory configurations of Dram types 4164 to 41256, thus making memory configurations between 64Kb and 512Kb possible.
Optional two rom sockets. Each socket could be manually configured for rom 1-15
- For the I/O Ports, see Standard Memory Expansions.
Software
Dobbertin supplied RDOS as a optional ROM to use the memory expansion.
Pictures
- The Dobbertin ram expansion
Top view
Inside here a version with the optional two roms mounted.
Inside top view
Unit Top
Unit Bottom
PCB Top
PCB Bottom
