Those VFDs do look like new. So, what the story with the newly acquired boatanchor of voltnuttery?
I was on the left coast for work, and visited my favorite surplus place. Unfortunately, they'd just gotten rid of a lot of old things that had been on the shelf for a long time (possibly among them another HP 405C that I'd been considering to have a spare for the one I got there a while back), so it was a slightly disappointing visit. This, however, was a new arrival, so for grins I asked. They wanted $500. I asked if it worked, and we decided to plug it in and find out. The fan spooled up, but no display. I got the price knocked down to $350 and decided to roll the dice, since I rarely if ever see them go on evilBay for less than $800 or so, and some recently have gone for north of $1k.
I guess along with the 740B, 745A and 6920B acquired over the past year or so and still waiting in the queue, this means that I've begun my journey down the rabbit hole of voltnuttery now...
-Pat