[GreenKeys] not mine, home brew TU

[Nick England]

This HB gadget reminds me of how impressed I am by the dedication, enthusiasm, and creativity of RTTY pioneers. I came to TTY only in recent years and I stick to restoring/operating USN gear. But I really enjoy seeing the past creations of experimenters as well as current efforts in computer interfaces, steampunk M15's, etc. What a great hobby!!
Cheers,
Nick