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/Time | Dimensions | User | Comment | |
|---|---|---|---|---|
| current | 14:00, 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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