zx81_plus_38_video_real_resistors_transistor_input.txt

Upload this to https://www.falstad.com/circuit/circuitjs.html to try my video output circuit.

plain - 1.96 kB - 02/02/2026 at 06:04

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ZX81plus38rev1,9.pdf

The board I am building.

Adobe Portable Document Format - 321.15 kB - 12/13/2025 at 22:39

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ZX81plus38_BOM_revision 1.10-keith (1).ods

List of things I have or haven't fitted yet. I'm omitting the tape circuitry, because I have no tapes or tape player.

spreadsheet - 20.68 kB - 05/31/2025 at 22:49

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2560px-ZX81plus38_revision_1.9_schematic.png

The board I am building, as an image file.

Portable Network Graphics (PNG) - 374.91 kB - 04/30/2025 at 01:15

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