[GreenKeys] telegraph punch tape sender

[Sam Hallas]

John Martin wrote:

> The Unit is a "Code Practice machine", it is a hand crank to that is 
> connected to a main spring. There is a small governor inside that 
> controls the play back speed. Is not TTY equipment, but used in the 
> early days to practice morse code.
It looks home-made, John. Do you think the wind-up mechanism is possibly 
from an old 78 rpm gramophone?

I see that K0SVJ, is listed as a David T. McKenzie, member of the Old, 
Old Timers club. Maybe he's still alive and you could ask him?

Cheers,

Sam, G8EXV