Wednesday, March 31, 2021

Placed 164 sockets on the backside of the PCB into which the lamps will be plugged

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 REPLACEABLE INCANDESCENT LAMPS Since incandescent bulbs have a short enough life that they need to be replaced as a routine matter, I desig...

Installed 164 Triacs and 164 resistors onto the IBM 1130 incandescent lamp upgrade board

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 STEP ONE IN CONSTRUCTION The two hardest parts to install are the triacs and resistors. I expect that the best sequence is to put all the t...
Tuesday, March 30, 2021

PCB arrived, ready to begin component installation and checkout

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 PICKING UP THE PCB After watching the progress of the box, I saw it delivered on Monday afternoon and arranged a time to drive over to pick...
Sunday, March 28, 2021

PCB box approaches, on target for Tuesday arrival

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FINALLY THE PCB IS NEARING ME The PCB flew through the shipping system, leaving Hong Kong within a day of beginning its journey in Shenzen. ...
Friday, March 26, 2021

PCB jumps from 63% done and target of April 2, suddenly complete and waiting shipment

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 This morning when I checked the boards were listed as 63% complete and this evening they jumped to 100%. It had appeared to me that the com...
Wednesday, March 24, 2021

Components arrived as I wait for a seeming eternity for the PCBs to be completed

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 FAB WORKING ON THE PCBS It seems like the proverbial watching paint drying, but I check in every day to see the glacial creep of the progre...
Wednesday, March 17, 2021

Prep work while waiting three or more weeks for the new PCBs to arrive

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 HARVESTING USABLE PARTS FROM THE CURRENT PCBS I used my hot air rework tool to carefully remove all the triacs from the three existing boar...