SS50-PT-1MB Memory board for SWTPC and SS50 Computers

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PT-1MB Memory Board


1MB Memory board for SS50 systems with 6809 and extended addressing.

Cannot be used in 64K or less systems

Memory can be disabled in 64K blocks at 80000, 90000, A0000, B0000, C0000 and D0000.

Provides 896K for SWTPC system.

This board can be used with FLEX or OS9 L1  but neither FLEX or OS9 uses  more than 64K of memory.

Suitable for use with UNI-FLEX or OS9 L2 but currently neither is available.

This is mostly a board for experimenters wishing to write their own software since little to no software is available for it.

Uses 120ns or faster memory

Can be used in 1MHZ or 2MHZ systems.



SS50-PT-1MB User Manual. PDF 



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Price List Hardware

PT-1MB-Bare Bare Board + PAL $12
PT-1MB-ASM Tested and Assembled Board $39

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