Memory Expansion Kit for the TMS-6X, and TMS-12A. The DRAM-1M memory expansion kit expands the digital voice memory of the TMS- 6X and TMS-12A call sequencers. The kit provides 88 additional seconds of digital memory, for a total of 2 minutes. Each kit includes three DRAM chips. Applications Features Provides 88 additional seconds of digital memory, for a total of 2 minutes.