| ACROSS |
| 4 | Not a bent key, but... |
| 8 | Makes a click-clacking sound. |
| 9 | A sparkless key. |
| 13 | A neighborhood sounder. |
| 14 | A modern sounder. |
| 15 | A key for keying high-current. |
| 16 | A key that stands to attention. |
| 18 | Not wireless. |
| 19 | Samuel F. B.'s last name. |
| 20 | A CW operator's style. |
| 22 | A key with a hump. |
| 25 | An electronic Morse generator. |
| 26 | World-wide Morse code. |
| 27 | The rate of sending or receiving telegraphy. |
| 29 | Domestic Morse code. |
| 30 | Another name for the smallest of keys. |
| 31 | Old Samuel's switch. |
| 32 | US Morse code. |
| |
| DOWN |
| 1 | Radio-telegraphy. |
| 2 | The other Morse code inventor, Alfred... |
| 3 | An electrode named after a bird's appendage. |
| 5 | A printing sounder. |
| 6 | A type of key, not meant for the foot. |
| 7 | A distress call. |
| 10 | The first major business that used telegraph. |
| 11 | A type of sounder connected to the telegraph line. |
| 12 | A key with a large knob. |
| 14 | Short for a semi-auto key. |
| 15 | The proper name for a speed key. |
| 17 | A keyer's input switch. |
| 21 | Dual-paddle squeeze keying. |
| 22 | Morse... |
| 23 | No legs on this key. |
| 24 | A device used to control sounders. |
| 28 | A small telegraph relay. |
