IBM PCjr Capacitor Replacement Guide: Revision history

27 September 2026

• curprev 08:5908:59, 27 September 2026 Josh talk contribs 18,106 bytes +39 Link the documentation page for each cited manual, keeping the File: link as the direct download undo

22 September 2026

• curprev 00:4500:45, 22 September 2026 Josh talk contribs 18,067 bytes +262 Add the PCjr internal teardown photograph alongside the power supply description undo
• curprev 00:3600:36, 22 September 2026 Josh talk contribs 17,805 bytes +10,488 Verify against the IBM PCjr Technical Reference (hosted on this wiki), Brutman and Console5; add inline <ref> citations. Major correction: the external PCjr brick is a TRANSFORMER supplying 17 Vac - it contains no rectifier, no switching regulator, no secondary electrolytics and no high-voltage bulk capacitor. Rectification and regulation happen on the Power Board inside the system unit, which is where the electrolytics and the over-current protection are. Removed the fabricated fold-back/DC-... undo

21 September 2026

• curprev 21:5121:51, 21 September 2026 Josh talk contribs 7,317 bytes +20 Verification drive: flag unverified component data pending check against a primary source undo

21 May 2026

• curprev 11:1811:18, 21 May 2026 Josh talk contribs 7,297 bytes +7,297 Create/rewrite IBM PC AT (5170) and IBM PCjr (4860) page set with verified facts, real images, and embedded content per RTC style guide