About 5 or 6 years ago I fixed numerous faults in a 1740, only to be left with what I think is a duff hybrid module in the vertical channel. Must dig it out and have another look at it. Though I've no idea what I'd use it for, having since bought that 100MHz Philips/Fluke Combiscope you can see in the background. That's a lovely bit of gear but has a very noisy cooling fan. Not looking forward to having to fix that in the future though
Anyway, nice job on your 3217. Let me know if you ever need any help with it in the future, as I know them fairly well...