Related Clues:
- A Morse "I" requires two
- Counterparts of dahs
- Telegraphic signals
- Some code signals
- Three of these make an O
- Morse code for 'sissies'
- Counterparts of dits
- Dits' counterparts, in Morse code
- Most of an SOS
- Some Morse code characters
- Sounds of dashes
- Some code tones
- 'Tom,' entirely, in Morse code
- Bits of Morse code
- Code sounds