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24 September 2026
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21:47 | IBM 5100 2 changes history +6,662 [Josh (2×)] | |||
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21:47 (cur | prev) −8 Josh talk contribs (De-link four red links (bitsavers.org, IBM 1130, IBM 5114 Diskette Unit, IBM Datamaster) to existing pages or plain text) | ||||
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21:47 (cur | prev) +6,670 Josh talk contribs (Fix refs so they render; correct dimensions (445x610x203 mm, IBM's figures - width and depth were transposed) and weight (50 lb/24 kg) to MIM Appendix B; PSU is a transistor switching regulator with five rails incl +8.5 V, not a linear supply with series-pass regulators; state that IBM never uses the name PALM; cite IBM's own 1977 design paper, newly hosted) | ||||
22 September 2026
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01:42 | IBM 5100 Capacitor Replacement Guide 2 changes history +3,116 [Josh (2×)] | |||
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01:42 (cur | prev) +57 Josh talk contribs (Give both AC box line filter part numbers, old and new style) | ||||
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01:31 (cur | prev) +3,059 Josh talk contribs (Rebuild from IBM SY31-0405-3 and S131-0599-3: supply is a transistor switching regulator, not linear; removed all 'representative' capacitor tables and the invented DC300/ROS values; added IBM rail tolerances, Y1 pin map, protection trip points and AC box designators; removed the unrelated IBM 5150 polarity image; cleared Unverified data) | ||||
| N 01:28 | IBM 5100 Maintenance Information Manual diffhist +2,200 Josh talk contribs (Create documentation page for newly hosted IBM field service manual (RTC verification drive)) | ||||
| 01:24 | Upload log Josh talk contribs uploaded File:IBM 5100 Portable Computer Parts Catalog S131-0599-3.pdf (Upload IBM field service documentation from bitsavers for the RTC verification drive) | ||||