I bought this portable US Navy oscilloscope last weekend at the always-excellent Alameda Collectibles Faire. The oscilloscope was $15, but someone snipped off the power cord so I have no idea if it works. I almost don't care because I love the way it looks. The date of manufacture is also also unknown but I suspect it's 1950s. (Anyone know anything about Navy OS-8/U oscilloscopes?) Not sure what I'll do with this yet, but it'll definitely be blinky.