Iambic Paddles

Iambic paddles used to send the Morse Code. Based on the original design by Jonathan, KM4CFT, and the remix by Rob, W1RCP.
Improvements:
1. A wider range of paddle-tension adjustment.
2. More stiffness in the paddle arms.
3. Finger indentations for better feel and grip.
4. Hidden adjustment screw heads, so the paddles cannot be accidentally actuated by touching the screws during operation.