TRS-80 Model 4 Gate Array FreHD Autoboot ROM (2764) chips-and-bits This TMS-2532A EPROM chip is

This TMS-2532A EPROM chip is pre-burned with the popular "TRS-80 Diagnostic ROM" from Github user MisterBlack1

Product History:

Dust all internals

PIC18F2458*DIP28

to either a cassette for loading/saving or have audio input and output

TRS-80 Model 4 Gate Array FreHD Autoboot ROM (2764) chips-and-bits This TMS-2532A EPROM chip isThis EPROM is required if you're interested in being able to boot your FreHD automatically when starting the machine. It is supplied on a 2764 EPROM which requires soldering wires to various points on your TRS 80 motherboard. There are no trace cuts, only soldering. If you need to reverse it out, just remove the chip and clip the wires. Only one chip with wires and instructions is included with each order. (We are charging only for the EPROM