Rescue 1130: 2014 Pickup of an IBM 1130 System and More
Sunday, May 5, 2024
Quick update; regulator is indeed working properly
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HAD A SUSPICION THAT MY TEST SETUP WAS AT FAULT One of the possibilities to explain the voltage dip when I went up from 1A to 4A was that my...
Saturday, May 4, 2024
Progress on voltage regulator for VCF 1130; made plexiglass cover for SSM console printer
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QUICK SCHEMATIC DRAWING ATTEMPTED FOR EBAY VOLTAGE REGULATOR CARD SMS cards are very easy to reverse engineer, because all the components ar...
DMA Core Loader PCB has issues - gambled and lost; intrigued by 360 voltage regulator card I bought
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DISCOVERED A FEW ISSUES WITH THE PCB DESIGN ALREADY I have not completed all the testing yet with breadboards and an 1130 but I have already...
Thursday, May 2, 2024
The workshop is moved! Faster than I thought and a bit more casual
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SCRAMBLE TO MOVE TODAY INSTEAD OF TOMORROW The Chiropractor who is expanding into the storefront that was my current workshop had promised t...
Wednesday, May 1, 2024
Ordered components for DMA based core loader; arrived home today
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COMPONENT ORDER PLACED I sent the final order for the ICs, voltage regulators and terminal block to Digikey, so that I should have both PCBs...
Sunday, April 28, 2024
Ordered PCBs for DMA version of core memory loader; shop almost completely prepped for move
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TOOK A SLIGHT GAMBLE AND SENT PCB OUT TO BE FABRICATED I have completed circuit simulations which appear to show that my state machine is so...
Friday, April 26, 2024
Rotate tape installed on SSM 1053, curve tracer images of two transistors
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ROTATE TAPE REPLACED ON SSM 1053 The broken tape was replaced with a pristine new tape. It took about twenty minutes of fiddling inserting t...
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