File:ZX81plus38rev1,9.pdf

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ZX81plus38rev1,9.pdf(file size: 321 KB, MIME type: application/pdf)

Summary

revision 1.9 has revised joystick circuitry, with R23 = 1K and 10K pulldowns on bases of transistors.

File history

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Date/TimeDimensionsUserComment
current14:00, 15 September 2022 (321 KB)Mahjongg (talk | contribs)corrected C7, C8 and R59
13:30, 23 August 2022 (318 KB)Mahjongg (talk | contribs)revision 1.9 has revised joystick circuitry, with R23 = 1K and 10K pulldowns on bases of transistors.

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