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| Replacement for CRT? |
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| TomKatt:
--- Quote from: AMR Labs on June 28, 2022, 01:24:18 pm ---The problem with the CRT usually involves the trace getting very dim, so if yours has no problem there, your CRT should be fine. --- End quote --- I somehow missed that - you are 100% on point... CRT tubes are fairly basic and provided the filament and gun are in decent shape (as demonstrated by a bright trace), most of the time any jitter or distortion is a result of the signal processing driving the tube. In some cases, even a dim display is the result of bad signals and not the tube itself, so you can't make assumptions without testing. Tubes seem to get a bad rap in terms of "wearing out", but in many cases they can outlive solid state components. I've got an old Waterman scope from the 1940's that is still working using the original tubes. And if you've ever watched Youtuber Shango066 pull a vintage tube tv out of caked desert mud and get it to display video with just some minor tweaks, you begin to really appreciate the hardiness of vintage tech. |
| AMR Labs:
--- Quote from: TomKatt on June 28, 2022, 01:34:16 pm ---Tubes seem to get a bad rap in terms of "wearing out", but in many cases they can outlive solid state components. I've got an old Waterman scope from the 1940's that is still working using the original tubes. And if you've ever watched Youtuber Shango066 pull a vintage tube tv out of caked desert mud and get it to display video with just some minor tweaks, you begin to really appreciate the hardiness of vintage tech. --- End quote --- The problem usually with the CRT wear on the R2001D is that the service monitors where usually powered up all day from morning to evening at the service shop regardless if they where used or not, so that is the reason many have weak CRT's, but other than that this model seems pretty much bullet proof. Its really the type of use the tubes see, I bet your old scope does not see too much use anymore, so the tubes are still good after so many years. If you where to leave it running day in day out they would obviously not have survived that long. Some people think of tubes as lightbulbs that need to be replaced on a regular basis, but you are right, they can actually last for a very long time. |
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