HP 8553B Spectrum Analyzer HP 141T Display Section

Hewlett Packard plug in collection, HP 141T is the display section with analog storage in the CRT, HP8553B is spectrum analyzer plugin 0-110MHz / 0-11MHz HP8552B is spectrum analyzer IF section (scan and video filters) HP8556A is spectrum analyzer plugin 0-30kHz / 0-300kHz I also have the HP8443A tracking generator and counter 8 digit nixie but that will be another video, Bug surprice to find this one working, I was sure i got it as defective, but maybe i swapped the notes in my storage with some other equipment, lucky mistake. this is my number 83 Hewlett packard video by the way, have you seen them all ? -- when you are done with this video, PLEASE try scroll thru my other videos here    / @teardownoz2cpu   --- #teardown #restoration #hewlettpackard ------ I use auto generated subs, i am sorry there are a few spelling errors, maybe one day they can do it better.. -- (Thanks to all my Sponsors / Traders / Swappers / Sellers / Buyers, without your support and constant flow of cool items in/out, none of this would be possible)