You win some, you loose some... A 8590E blew up when I powered it on but the E4402B ticks all the right boxes...
All the nice options: narrow BW, tracking gen (yay!) and even the low frequency option. But the cherry on top? A grand total of 225 running hours. Yummy!
Also:
Never had one of these. If anyone knows of an easy, representative test on one of those: I'm all ears. And finally:
Turns on but doesn't make sense... Only reacts to current knob... Bit too many decimal points. Even turning it on gets it beyond economic repair, not even going to try. I know there are some Thurlby loverboys around, so this one is free. For shipping at cost this one is yours...