During March 7th 1970 solar eclipse on Nantucket island I flew our electrometer package using US Weather Bureau telemetry equipment (a WBRT) (I guess everyone at the UofMN was obligated to give mid-term exams that week so I got to do it). 

Clear day on Nantucket, eclipse beginning… WBRT telemetry receiver I was using on the tower in the background, amateur astronomers in the foreground. And yes, the birds sang at totality!

17 year old me, with my Duluth wolf skin trimmed air force surplus parka!

Calibrating a modified radiosonde w/electrometer prior to launch.