The 465 is at best average in terms of trace sharpness but it should look better than the photo above.
Possibly and I do not have any experience with different 465s but others have said that they were not as sharp as later 100 MHz CRTs in the 22xx series and that there was considerable variation between early 465s and late 465Bs. Mine might just be old or have a lot of hours although the CRT does not display double peaking.
My trace response is quite similar to the 2232 image. However, I suspect that if you put both scopes side by side the 2232 would edge it on sharpness because it's hard to take photos of CRT traces and retain the sharpness. Also the setting of the intensity control and camera settings seem to significantly affect the results with a camera. None of my cameras seem to be able to capture the CRT display without making the scope trace look fuzzy.
I picked up a Canon SX150 just for taking oscilloscope photographs. It is much better than the piece of junk Sony DSC-S70 that I used to use. I get better exposures with relatively high ambient light levels but this makes it difficult to prevent shadows.
The risetime looks very droopy on the 465 and I guess you still have this to fix. It would be nice to see the response when it is fixed. I find that the quality/size of the 50R termination affects the response a bit and mine shows a bit of excess overshoot with a cheapo (long and big) BNC 50R feedthrough.
It is the same configuration including 50 ohm feedthrough for both photographs but something is obviously wrong with the 465. It was even worse before I started working with it and I still need to go through the vertical signal paths in detail.
David, out of curiosity is the picture of the 465 trace also 200mV/division?
Yes, I am pretty sure it is also 200mV/div with the variable control not engaged and the pulse output adjusted at the source for 1 volt deflection. I did not take any specific notes but that is almost always what I start testing with unless there is a problem.
Ideally this test is first done at the native 5mV/div on a 465 where none of the high impedance attenuators or collector loads are used but I checked the vertical ranges and they all worked and produced results consistent with the 200mV/div result.
I am working on rebuilding the fan and power supply first.