Michael WesselHave an ET-3400 without the expansion header installed, and you prefer to leave the historic machine in original condition? Still, PicoRAM can be used on such a machine - simply use ribbon cables with connectors and plug PicoRAM into the ET-3400's 2114 SRAM sockets (two are sufficient; use IC14 and IC17), as shown in this video:
PicoRAM and ET-3400s without the expansion header
A project log for PicoRAM Ultimate
SRAM Emulator and SD Card Interface for Vintage Single Board Computers (such as the Heathkit ET-3400, Lab-Volt 6502, and Microprofessor)
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