With the original ~50 year old filter caps

Edit: the measured ripple is always an upper limit

Option 4 is the 'Maximum Brightness CRT' and Option 78 'P11 Phosphor'

No wonder this thing messes with photo sensors

That's in fact an option Tektronix provided an installation manual for.

One fancy plugin I have is this 7S12 TDR / Sampler. A plugin that itself has plugins, naughty.

Time Domain Reflectometry is used to detect and locate faults in cabling by sending a sharp pulse down the cable and measuring the reflections.

In the TDR configuration the right bay takes a pulse generator, such as the S-52, that achieves rise times of < 25 ps, while the left takes a sampling head. Sadly, I don't seem to have a pulse generator plugin.

What I do have however is the S-53 Trigger Recognizer and the S-2 Sampling Head, which provides me with a sampling setup with a 75 ps rise time. That equals to about 4.66 Ghz bandwidth.

That weird connector on the sampling head is a GR 874. It may look bend, but it's not. In the world of GR 874 there is no male or female, everything can mate with everything else. I might have cables. But luckily I have plenty BNC adapters

The S-2 is the thing I fixed earlier

It's so satisfying to dial right into the kink (of the cable).