Friday, April 5, 2024

Repaired Prog Load button, cleaned contacts of Power switch and tested up to energizing the contactor

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PROG LOAD SWITCH HAD A BROKEN SOCKET AND WAS WEDGED WITH PAPER As I looked closer at the console when I was testing the Power on/off switch,...
Thursday, April 4, 2024

Finished rewiring and initial testing of power sequencer and related circuits; a few minor faults found

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REWIRING REMAINDER OF CONNECTIONS INSIDE BOX I finished all the connections coming into the box, verifying each connection was to the proper...
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Wednesday, April 3, 2024

Last lacing and start of reinstallation in sequencer box

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FINAL LACING COMPLETED IBM lacing is done so well that you can tell immediately which screw on a terminal block that each wire should connec...
Tuesday, April 2, 2024

Beginning restoration of 1053 console printer

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VISUALLY IT IS IN FINE CONDITION All the tapes, belts, cords and other parts are intact, with no signs of damage. There is one very common b...

Prepared demonstrations to use when 1130 lacks peripherals

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THE CHALLENGE FOR 1130 SYSTEMS WITHOUT FULL PERIPHERAL COMPLEMENTS The 1130 system software DMS (Disk Monitor System) V2 R12/R13 is designed...

Repairing remainder of wiring bundle and preparation for reinstallation

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CONVENIENCE OUTLET REPAIR I removed the end terminal from the ground wire, put a green heat shrink tube to cover the scraped insulation, ins...
Monday, April 1, 2024

Disconnecting wiring bundles from sequencer box - part 3 - and commencing repairs

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REMOVED THE FINAL COMPONENTS AND EXTRACTED THE BUNDLE I was able to get the frozen screws on the contactor to loosen so that I could remove ...