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- 03:53, 12 September 2026 Braedel talk contribs created page 4164/41256 RAM Modification (Created page with "Williams MPU's shipped with 24, 4116 DRAM (Dynamic Random Access Memory). These memories are 16k(16,384 x 1-bit)each. They were released by Mostek in 1977 (only a few years before Defender released! These chips require 3 voltages(Triple-Rail) to operate: +5 provides the buffers for inputs and outputs to operate at TTL +12 primary power source -5 used as a shield on the substrate to stabilize functionality If the -5v drops for any reason while the other 2 voltages are...")