Tektronix 2445 Oscilloscope Repair Revisited part 1 of 1

My Tektronix 2445 oscilloscope slowly started failing until it finally stopped functioning altogether a few months ago... find out how I repair it in this video Enjoy :) I systematically replaced a number of old components rated for 85C° (17 electrolytic capacitors on the powersupply boards A2 & A3) , with equivalent capacitors rated for 105C°, as well as 3 paper capacitors and 1 (probably) mylar one by PP film capacitors rated for 1KV and 630V respectively. I suspected that the replaced (failed/failing) components were either inferior in quality or just not rated properly (temperature-wise) for the job. The final outcome of the repair session seems to have confirmed the initial assessment was correct Use of a desoldering gun and a dremel tool for the repair are recommended. Do use good quality solder + flux, since the PCB's are doublesided and require soldering on BOTH sides. Be meticulous and careful while soldering and check every solderpoint; retouch where necessary. Be gentle when dis- or reconnecting PCB's and connectors, most are very sensitive to mechanical or heat stress. Make sure your hands and tools are properly grounded for static electricity, BEFORE touching IC-boards Be careful when working on / testing the oscilloscope, there is DANGER(!) : Deadly High Voltage and possibly harmful chemicals ! Opening up the Tektronix 2445: https://youtu.be/IaRkgtPxPyw Repairing the RCA Volt Ohmyst WV98-A part 1: https://youtu.be/uNiew03h_kg Repairing the RCA Volt Ohmyst WV98-A part 2: https://youtu.be/BjhdJrvuXRE Repairing the RCA Volt Ohmyst WV98-A part 3: https://youtu.be/118Stm38ZEs How to read capacitor values: https://www.electronics-tutorials.ws/capacitor/cap_5.html Film capacitor theory and information: https://en.wikipedia.org/wiki/Film_capacitor Voltage rating code quick reference: https://www.google.com/search?hl=en&ei=yKMLYKDCCbSSwPAP65CIqAg&q=capacitor+voltage+code+3A&oq=capacitor+voltage+code+3A&gs_lcp=CgZwc3ktYWIQAzIFCAAQzQIyBQgAEM0CMgUIABDNAjIFCAAQzQI6BwgAEEcQsAM6BQgAEJECOgQIABBDOgUIABCxAzoICAAQsQMQgwE6CwguELEDEMcBEKMCOgIIADoOCC4QsQMQgwEQxwEQowI6BwgAELEDEEM6CgguELEDEIMBEEM6BAguEEM6BggAEBYQHjoICCEQFhAdEB5Q94ANWP67DWClwQ1oAXACeACAAdIJiAH8NJIBCjAuMTYuNy43LTKYAQCgAQGqAQdnd3Mtd2l6yAEIwAEB&sclient=psy-ab&ved=0ahUKEwigxvPembHuAhU0CRAIHWsIAoUQ4dUDCAw&uact=5