Working HF
Packet
RTTY (yeah, I still have some mechanical clunkers - besides the computer...)
Home brewing and construction projects
Public Service: ARES/RACES and Skywarn
Collecting and Restoring Vibroplex Keys
Here are a few pictures of some on my favorite Vibroplex keys that I have in my collection:
1921 Vibroplex Standard 1955 Zephyr
1941 "J-36" (actually a Vibroplex with a Signal Corps Stamp on the bottom)