I have an HP 8640B for Sale. This is a great generator to do an alignment
on that old boatanchor R-390A or others. No more waiting for that URM-25 to
warm up and catch the alignment as it drifts through the right frequency.
This unit is rock solid and stays on the frequency you set it at. I've done
plenty of R-390A alignments over the years and this makes it a breeze. Will
ship anywhere in the US.

Thanks, Craig Harrison, KE6UOW