I don't have a camera handy (I could try to, uh, borrow, my parent's
), but I can scope waveforms at any rationale point (i.e., not the horz output plate!). The drive looks pretty much correct, and is the right size.
I'm starting to really think long and hard about that width control. The resistance doesn't match the book value, and hooking/unhooking it is the big effect on the picture...