I was just looking back through old posts here, and noticed someone had mentioned a 7J20(?). I
never
heard of this one, but recall that I stumbled upon a craigslist ad about a week ago while looking
for
something else. It was for "one lot of Tektronix plugins, $150 for all," or something like that.
The list
included a bunch of mundane ones like 7B53, 7A18, etc, and a 7J20. The picture wasn't too good,
but it
looked like there was one weird double-wide plug-in, with a cable going to a bigger box that it
was
sitting on. Could that be it?
That is the one - it is basically a scanning optical spectrometer. Rare as hens teeth. I'd have
bought that lot for $150 just to get my mitts on the 7J20
