This is nothing new but a DIY Sound Card Interface for many Baofeng-like hand held transceivers. You can operate APRS, SSTV, CW or any digital mode using VOX keying. I made this and confirmed working as a Fox Hunt transmitter...
Tag: gear
SpeedX CW Key Restoration
First made by Les Logan, then by E.F. Johnson, and now by Wm M. Nye Company, the zinc bases of the Speed-X keys have been cast in the the same molds since the 1930's.