Glad you enjoyed. Then here is some more HP stuff too. This is what that Keithley you saw before was sitting on.
This is the HP 89410A DC-10MHz Vector Signal Analyzer
Its quite the boatanchor this one, all 25kg(55lb) of it. This one was showing a NV RAM self test failiure, but all it needed was a new memory battery (Lithium coin cell). Quite conveniently the CPU board that has it can be slid out the back of the unit without taking off the top cover. Same for a few other boards in that computer cage like GPIB/Serial card, Video card etc. From what i remember i found a Motorola 68000 in there.
It makes quite a clicking racket on boot as it goes trough its self test, switching what sounds like 10 relays trough a cycle that repeats about 3 or 4 times. Pretty loud fan in there while the thing still gets pretty hot as it uses 100s of W of power. So you get the full on boatanchor experience right here.
In return you get dual true DC to 10MHz spectrum analyzers and a DC to 10MHz signal source that can be used as a tracking generator, all on a full color raster CRT with VGA output on the back. The ports on it can be 50Ohm, 75Ohm or 1MOhm with AC or DC coupling (Much like a scope). The noise floor goes down to -140dBm and allows a RBW from 3MHz to 0.003Hz. If you also have the RF section (HP 89441A) for it that can make it go to 2600MHz. Or alternatively you can use a IF converter section that lets you tap it in to the IF section of a HP 8566B (22GHz SA) to analyze modulation on radio signals higher up.
Quite a modern bit of kit with the HP badge still on it.