This Anritsu MS62B came along with various other test gear as part of a sort of barn find. Spent a bit of time working my way through the power supply front end as it seemed to be dead. Should have looked at the simple things first, finding a small connector not seated properly. With the power on, I struggled to get an image. It’s a CRT storage display, which I am not a fan of. After scratching my head with a lack of schematics, I traced the wires from the intensity control back to the CRT control board. Found one of the three leads loose, not fitted to the post on the PCB. Now I had an image, albeit with storage hue and some other odd things going on. Found a preset on the control board called CRT bias. A small tweak of that and managed to get a good image. Not the most up to date bit of equipment, but well made and will well adequate for that radio repair work I do.
ANRITSU MS62B Spectrum Analyzer
I have one of these and decided the CRT needed an emissions boost, so I added one turn to the heater winding on the EHT transformer (like we used to do to TV’s to extend the tube life a bit). Very pleased with the result too.