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Curated by: Epictronics (190 videos)
In this video, I build and test the DesTest MaxSwitch for the Commodore 64, delivering massively improved RAM diagnostics. I also try the DesTest kernel, the classic 566220 diagnostic ROM, and the original C64 test harness from the 1980s. Perfect for fans of vintage computers, Commodore 64 repair, retro diagnostics, RAM testing, fault finding, classic Commodore tools, old-school hardware troubleshooting, and hands-on retro computing maintenance and preservation projects. - PCB Prototype the Easy Way. Full-feature custom PCB prototype service. https://www.pcbway.com/ - Support me on patreon.com/Epictronics Buy me a coffee: https://ko-fi.com/epictronics - The Commodore 64 Playlist here: https://www.youtube.com/playlist?list=PLLN54H2azbhQfJLyal4FCu4RjK__eIk9t - Thanks to a viewer's comment below, we now know that my mistake was C4. I swapped it for a 68pF, and now it switches :) - Tools I regularly use FNIRSI DWS-200 Solder station PinePower Bench PSU AMTECH NC-559-ASM Flux Kester 951 Flux pen Hanstar 861DW Rework Station Pro'sKit SS-331 Desoldering Station SEQURE HT140 Desoldering Tweezers Multicore 60/40. 0.38mm solder AOYUE int883 PCB Preheater RIGOL DHO800 70MHz four-channel digital Oscilloscope Tektronix 2246A 100 MHz four-channel analog Oscilloscope FNIRSI DPOX180H 180MHz Handheld Oscilloscope UNI-T UT61E Auto Ranging Multimeter UNI-T UT890D Manual Ranging Multimeter FNIRSI LC1020E LCR/ESR meter TL866 II Plus Programmer InfiRay P2 Pro Thermal Camera TOMLOV TM4K-AF Flex Microscope Dremel 3000 with flexible shaft MaAnt Mini"Dremel" DeoxIT D5 Contact Cleaner PCBs from PCBWay.com - Support me on patreon.com/Epictronics Buy me a coffee: https://ko-fi.com/epictronics