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