nickelbr
W3QT (ex-NJ3Z)  Vibroplex Collection
                                 

Horace G. Martin's semi-automatic mechanical telegraph key (bug) increased sending speed and eliminated damage to the operator's arm ("glass arm") caused by the constant up and down motion of the hand key.

Click to view the collection:    

Original   Double Lever     Model X    Blue Racer   

Lightning   
Junior     Zephyr   

Champion    Presentation





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Revised:  10/30/2013

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Revised:  10/12/2013