Broken solder joints probably make for a strong root cause candidate. Feedback broke, transistor got run full tilt, didn't survive long? Can't imagine they were quite this brittle 25 years ago, it wouldn't have lasted long. But several compounds can form in the solder after a very long time which are more brittle and have a different thermal expansion, such as copper intermetallics and various hard oxides. Degraded solder that doesn't even want to melt properly is often noticed in caustic atmosphere in vicinity of electrolyte leaks.
i'm surprised at how well the raster looked, that deflection yolk must've been spot on
Really enjoyed how you got to the solution. Extra style points for getting it working with the 5200 CRT!
Wow. Props. I like to do my own repairs, but this is definitely above my pay grade.
You sir are a madman. This has to be the most terrifying video I’ve ever seen. Another example of why you’re the best!
Another great repair from the electronics wiz!
"It's hold on to your butts time" :) Nice work rigging this up to actually see it working!
Next is to check HVAC with your fingers ;) nice one!
Broken solder joints probably make for a strong root cause candidate. Feedback broke, transistor got run full tilt, didn't survive long?
Can't imagine they were quite this brittle 25 years ago, it wouldn't have lasted long. But several compounds can form in the solder after a very long time which are more brittle and have a different thermal expansion, such as copper intermetallics and various hard oxides. Degraded solder that doesn't even want to melt properly is often noticed in caustic atmosphere in vicinity of electrolyte leaks.