Never shed tears again while sending CW.
All those strong-smelling CW fumes will be contained in the glass jar, and not floating free to make you cry.
Chopper opened for showing techincal details. A piece of pc-board is glued on the original wooden plate and the other keying wire is soldered to it.
The other wire goes to this TV-antenna plug. No, there is no RF going here. The plug just happened to be available and suitable. Its purpose is to connect the wire to the chopper shaft and to reduce the shaft's movement.
See & hear a video clip:


