Day 5 - A 7V reference voltage in a Fluke multimeter. Note that this is - despite back to front - prior my adjustment! That thing is over 50 years old and the reference was accurate down to four decimal places! #TWAAC
December 5, 2024 at 5:12 AM
Day 5 - A 7V reference voltage in a Fluke multimeter. Note that this is - despite back to front - prior my adjustment! That thing is over 50 years old and the reference was accurate down to four decimal places! #TWAAC
Day 12 - Yes! That is more like it and looks like the expected schottky diode. Reversed anyhow. The original one was a flat line. Literally. #TWAAC
December 12, 2025 at 3:05 AM
Day 12 - Yes! That is more like it and looks like the expected schottky diode. Reversed anyhow. The original one was a flat line. Literally. #TWAAC
Day 5 - Another calculator project that is waiting its turn! Nothing too special on the technical side about this one, but certainly a piece of history! #TWAAC
December 5, 2025 at 2:05 AM
Day 5 - Another calculator project that is waiting its turn! Nothing too special on the technical side about this one, but certainly a piece of history! #TWAAC
Nixies! Some awesome calculator action here! This is the Sanyo caluclator, with the rightmost digit still bleeding into the leftmost during rollover, because there is a flaky short in it somewhere. #TWAAC
December 3, 2025 at 10:32 AM
Nixies! Some awesome calculator action here! This is the Sanyo caluclator, with the rightmost digit still bleeding into the leftmost during rollover, because there is a flaky short in it somewhere. #TWAAC
Day 2 - RIFA! Particularly their old transparent potted ones, including some cracks. Extracted from an HP meter before they blew up! #TWAAC
December 2, 2024 at 4:39 AM
Day 2 - RIFA! Particularly their old transparent potted ones, including some cracks. Extracted from an HP meter before they blew up! #TWAAC
Day 1 - Here we have an improvised fuse; to replace an SMD part until the spare part got delivered. I still think this is one of the more hilarious botches I made so far... even though it's only temparary! #TWAAC
December 2, 2025 at 12:07 AM
Day 1 - Here we have an improvised fuse; to replace an SMD part until the spare part got delivered. I still think this is one of the more hilarious botches I made so far... even though it's only temparary! #TWAAC
Day 4 - And digital troubleshooting on a revision 1 PCB. From my paddle game project: trying out a fix for a problem before ordering the re-made part! #TWAAC
December 4, 2025 at 4:30 AM
Day 4 - And digital troubleshooting on a revision 1 PCB. From my paddle game project: trying out a fix for a problem before ordering the re-made part! #TWAAC
Day 18 - Creative high impedance circuitry. Yes. Those are indeed two 100MOhm resistors in series. On the input! That is in the 8375A attenuator. #TWAAC
December 18, 2024 at 10:39 AM
Day 18 - Creative high impedance circuitry. Yes. Those are indeed two 100MOhm resistors in series. On the input! That is in the 8375A attenuator. #TWAAC
Day 3 - Ah, the Fluke Calibrator, fully loaded and ready for the top cover! Don't mind the random bits and pieces around the desk, nothing to see here! #TWAAC
December 3, 2024 at 6:56 AM
Day 3 - Ah, the Fluke Calibrator, fully loaded and ready for the top cover! Don't mind the random bits and pieces around the desk, nothing to see here! #TWAAC
Day 7 - The capacitor ate my trace! A "new" device, after removing the leaked electrolytics and patching up the damaged traces. About late 1980s vintage. #TWAAC
December 7, 2024 at 3:28 AM
Day 7 - The capacitor ate my trace! A "new" device, after removing the leaked electrolytics and patching up the damaged traces. About late 1980s vintage. #TWAAC
Day 21 - I don't think I have shown the populated logic troubleshooting kit from HP? I got the box with the logic comparator and added the probes which came with other "lots" for completeness. #TWAAC
December 21, 2025 at 5:21 AM
Day 21 - I don't think I have shown the populated logic troubleshooting kit from HP? I got the box with the logic comparator and added the probes which came with other "lots" for completeness. #TWAAC