STEbus EGA board

Keith

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Description

No manual or circuit for this. Prototype board scavenged from bin, as evidenced by correction wires on the back. Missing PAL chips. BIOS ROM read for posterity before EPROM fades.

Details

EGA monitors vanished decades ago, so this board is pretty much useless. However, this project is just to record that it once existed.

Files

Arcom_J140_SPEGA_BIOS_v_1_i_1.bin I could not identify the version and issue of my ROM, nor could I see it in the ROM. This file does differ from mine, but I do not know if this is because mine is a later version or this file has bit rot. octet-stream - 16.00 kB - 03/29/2026 at 23:28		Download
Arcom_J140_SPEGA_BIOS_ROM_hex_bytes.c Array of bytes in C format. x-csrc - 93.05 kB - 07/16/2019 at 22:23		Download
Arcom_J140_SPEGA_BIOS.hex Hex file. x-hex - 38.53 kB - 07/16/2019 at 22:23		Download
Arcom_J140_SPEGA_BIOS.bin Binary image. octet-stream - 16.00 kB - 07/16/2019 at 22:23		Download
J140_SPEGA_component_list.txt Component list, incomplete.. plain - 368.00 bytes - 07/16/2019 at 22:22		Download

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STEbus EGA board

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Description

Details

Files

Arcom_J140_SPEGA_BIOS_v_1_i_1.bin

Arcom_J140_SPEGA_BIOS_ROM_hex_bytes.c

Arcom_J140_SPEGA_BIOS.hex

Arcom_J140_SPEGA_BIOS.bin

J140_SPEGA_component_list.txt

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