64K DRAM board for the TS1000, TS1500 or ZX81. Special features of this memory include:
- 8-12K on/off switch
- 12-16K on/off switch
- two banks of 8K ram available mapped 8-16K (Bank A/B switch)
- and 48-64K on/off switch
64K DRAM board for the TS1000, TS1500 or ZX81. Special features of this memory include:
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