I've got an 8662A that works perfectly (still in spec even) except for a missing button. The Span Freq button is a 0.5" square, dark gray button. Looks like the internals are there, just missing the button cap. Anyone have a source for these? I'd settle for something that's the right size with the wrong label (Start Freq, End Freq, etc.). Willing to pay a reasonable price if you've got one. I'm not interested in buying another parts unit just for a button.
