MFJ-80, MEMORY EXPANSION KIT FOR 492

The MFJ-80 is a RAM expansion kit to increase the message memory of your MFJ-492 from 4x192 to 8x4000 characters. The MFJ-80 consists of an NEC43256-10L or equivalent static RAM chip. When the MFJ-80 is installed, your MFJ-492 becomes a MFJ-492X.

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