Monday, January 29, 2018

Producing replacement battery pack for original model Roomba vacuum

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BUILDING REPLACEMENT ROOMBA BATTERY The battery pack for the original model Roomba vacuum is not holding a charge as well as it did when...
3 comments:
Sunday, January 28, 2018

HP 2621A terminal successfully connected to Altair 8800 replica (AltairArduino)

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BUILDING LINK BETWEEN ALTAIR 8800 REPLICA AND HP 2621A TERMINAL I switched over to my Bluetooth to serial module, since I was having n...
Saturday, January 27, 2018

Processed more PARC cartridges, validated latest ethernet tool, and worked on Altair replica to HP terminal link

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CONNECTING ALTAIR 8800 REPLICA TO HP 2621A TERMINAL Before I can hook my USB to CDC mode TTL serial to the TTL to RS232 level serial conve...
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Wednesday, January 24, 2018

IBM 1401 reader-print problem fixed; last batch of disc cartridges from Xerox PARC picked up for archiving

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WORK ON READ-PRINT ISSUE OF IBM 1401 AT CHM Today we met at Computer History Museum to work further on the sporadic failure of the '...

Building connection from Altair replica to HP 2621A terminal, rebuilding original Roomba battery pack

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ROOMBA REPAIR The Original Roomba vacuum cleaner that I repaired recently is working well at my daughter's apartment, but the battery ...
Tuesday, January 23, 2018

Finished batch of PARC disks, got stand for my HP 2621A terminal

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HP 1000 SYSTEM RESTORATION Stand for 2621A (ET) Terminal A friend found a base for my ET terminal and gave it to me, along with some c...
Thursday, January 18, 2018

More work on 1401 system read-print issue at Computer History Museum

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REPAIRING READ-PRINT ISSUE WITH IBM 1401 DE SYSTEM AT CHM The focus on Wednesday was on the timing of various cam based switches that fo...